WO2007036379A2 - Method and device for transmitting signals - Google Patents
Method and device for transmitting signals Download PDFInfo
- Publication number
- WO2007036379A2 WO2007036379A2 PCT/EP2006/065028 EP2006065028W WO2007036379A2 WO 2007036379 A2 WO2007036379 A2 WO 2007036379A2 EP 2006065028 W EP2006065028 W EP 2006065028W WO 2007036379 A2 WO2007036379 A2 WO 2007036379A2
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- Prior art keywords
- switching
- decentralized
- transmission
- power semiconductor
- transmitting
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000004065 semiconductor Substances 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims description 53
- 230000003287 optical effect Effects 0.000 claims description 25
- 238000005070 sampling Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 8
- 230000008054 signal transmission Effects 0.000 description 4
- 241000282941 Rangifer tarandus Species 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000283011 Rangifer Species 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/18—Modifications for indicating state of switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Definitions
- the invention relates to a method and a device for transmitting signals between a central controller and one or more decentralized controllers.
- switching signals with a high time resolution and a low transmission delay time must be transferred jitter-free from a central controller to the power semiconductor switches of the converter.
- the invention is therefore based on the object, reindeer a procedural ⁇ and to provide a device for transmitting signals for controlling power semiconductor switches in which the reliability of the signal transmission is improved and can be reduced in which costs.
- Each power semiconductor switch has at least two switching states
- the signals are transmitted from the central controller to the decentralized controllers by means of a radio interface or an optical waveguide, wherein in the case of the optical waveguide the decentralized controllers are all connected to the optical waveguide,
- the central controller transmits transmission blocks as signals to a decentralized controller, the transmission blocks consisting of bits transmitted in a bit clock, the transmission block being followed by a bar code word followed by the switching information for at least one power semiconductor switch in a data block; Switching information contains switching states and / or switching times.
- len controllers each drive only one power semiconductor switch. It is also conceivable that only a decentralized control is provided, which controls all power semiconductor switches. Intermediate forms with a plurality of decentralized controllers, which each control a plurality of power semiconductor switches, are also conceivable.
- the power semiconductor switches can be eg IGBTs (Insulated Gate Bipolar Transistor) or transistors or also thyristors.
- the switching information includes switching states and / or switching times, the switching times ben reasonable, are the times at which the switching states of the power semi-conductor switch is ⁇ apply. It can also be signaled that a switching state of a power semiconductor scarf ⁇ ters should remain the same by a switching state is transmitted, which is already present in the power semiconductor switch.
- the optical waveguide may have a Trans ⁇ formatorübertragungsumble (from one or several transformers ren example, also consisting Planar) be replaced by an arbitrary line-connected data transmission path like.
- the switching information is interleaved after channel coding in order to avoid burst errors.
- the selected bar code has a Hamming distance of significantly greater than 1 against all possible combinations of the data transmitted over the same data channel.
- the remote controller performs a Bitsyn- chronization through, so that the beginning and end of a bit be ⁇ are known to be able to correctly receive the transmitted transmission blocks.
- Bit synchronization can be performed using a phase locked loop (PLL) unit.
- PLL phase locked loop
- the decentralized controller performs a sampling of the received signal, wherein the sampling frequency is greater than or equal to the bit clock.
- the signal quality can advantageously be estimated.
- the decentralized controller performs a synchronization by means of the Barkercodeworts, so that the beginning ei ⁇ nes Sendeblocks and / or a data block is known. But it can also be used alternatives that are similar to the property of the Barker codewords.
- the barker codeword signals the beginning of a new send block and is easy to detect due to its autocorrelation properties.
- the decentralized control unit If the decentralized control unit has received switching information for at least one power semiconductor switch assigned to it, then it electrically controls the power semiconductor switch so that it remains in its switching state or changes over to another switching state.
- the remote controller receives switching information for supply least an associated power semiconductor switch and transmits the control information to the power semi-conductor switches ⁇ with any transmission method on. 200513310
- At least one code word is sent in a data block, which is repeated until a new transmission block is transmitted, wherein the code word contains switching information for at least one power semiconductor switch and repetitions of the code word can be cut off by the beginning of a new transmission block.
- the repetitions serve advantageously for checking in the decentralized control whether the switching information was received correctly.
- further information can be integrated into the data stream together with the switching information of the power semiconductor switch.
- the code word could also include additional measurement commands or
- an advantageous embodiment results when word in the code only switching states are transmitted and the switching time ⁇ point of a predefined time delay and the reception time of the Barker code word is calculated.
- the transmission is carried out efficiently, since no time for the transmission of the switching times must be used.
- the information about the switching states for a plurality of power semiconductor switches can be transmitted by means of bits.
- the bits can advantageously be arranged in the code word such that in each case firstly all n-th bits of the information about the switching states are transmitted for each power semiconductor switch before the (n + 1) -th bits are transmitted. That is, first the first bits of the switching information of all the power semiconductor switches are transmitted, and then the second bits, etc.
- a further embodiment according to the invention results when switching states and switching times are transmitted in the code word, wherein the switching states in a first part and the associated switching times in a second part of the code 200513310
- Signals are advantageously transferred from the remote controllers to the central controller via a radio interface or a further light waveguide, containing Sig ⁇ dimensional error messages and / or measured values, and wherein in case of the further light waveguide, the decentralized STEU ⁇ modified later are all connected to the further optical waveguide.
- the signals from the remote controllers to the central controller is sent such that the error messages and / or measured values are summarized for each power semiconductor switch in a block and the blocks one after the other ⁇ be sent. That is, the data is sent block by block for each power semiconductor switch.
- the transmission via a radio interface can advantageously be carried out by means of a WLAN (Wireless Local Area Network, WLAN).
- WLAN Wireless Local Area Network
- the transmission methods according to the invention additionally also offer diagnostic possibilities with the aid of which the quality state of the optical waveguide can be checked.
- the channel-coded signal transmission also offers the possibility, for example, to send trigger signals for sensors or to transmit diagnostic messages, such as the junction temperature of the power semiconductors, together with possible diagnostic messages to the central controller.
- 1 shows an embodiment of the transmission system
- 2 shows a further embodiment of the Questiontra ⁇ supply system
- 4 shows the data protocol
- 5 shows an embodiment of the data protocol
- FIG. 6 shows another embodiment of the pro ⁇ protocol.
- FIG. 1 shows an exemplary embodiment of the transmission system with the central controller 1 and a decentralized control 3, which are connected to one another by means of the optical waveguide 2.
- the central controller 1 controls the central controller 1 and a decentralized control 3, which are connected to one another by means of the optical waveguide 2.
- the decentralized controller 3 power semiconductor switch 4 are connected.
- the central controller 1 sends the switching information for the power semiconductor switch 4 via a line-connected data transmission path 2, which can be realized by a Lichtwellenlei ⁇ ter or a transformatory data transmission to the decentralized controller 3, which receives the switching information and the power semiconductor switch 4 accordingly, so that they remain in their switching state or change over to another switching state.
- the transfer can with the help of Transforma ⁇ tors, including Planar, rather than be carried out with optical fibers.
- each individual decentralized controller 3 may have an egg ⁇ gene optical fiber connection to the central controller 1, which is independent of the other optical fiber connections
- FIG. 2 shows another embodiment for the Sprint ⁇ supply system.
- several de ⁇ central controllers 3 are connected via the optical waveguide 2 with the central controller 1.
- Each decentralized controller 3 are assigned one or more power semiconductor switches 4.
- the central controller 1 sends the switching information for the power semiconductor switch 4 via the optical waveguide 2 to the decentralized controllers 3, which receive the switching information and the power semiconductor switch 4 accordingly, so that they remain in their switching state or go into another switching state.
- FIG. 3 shows a further embodiment for the Sprint ⁇ supply system.
- several de ⁇ central controllers 3 are connected via a radio interface 14 to the central controller 1.
- Each decentralized controller 3 are assigned one or more power semiconductor switches 4.
- the central controller has an antenna 5.
- the decentralized controllers have antennas 6 for receiving the switching information.
- the central controller 1 sends the switching information for the power semiconductor switches 4 via the radio interface 14 to the decentralized controllers 3, which receive the Weginformati ⁇ on and the power semiconductor switch 4 accordingly 200513310
- the central Steue ⁇ tion 1 sends transmission blocks 7, which consist of a Barkercodewort 8 and a data block 9.
- the transmission blocks 7 beinhal ⁇ th bits, which are sent in a bit clock.
- the data blocks 9 contain the switching information to the power semiconductor switches 4, which consists of switching states and / or switching times.
- the central controller 1 sends transmission blocks 7, which are ⁇ from a Barker codeword 8 and a data block 9.
- the transmission blocks 7 include bits which are transmitted in a bit clock.
- the data blocks 9 contain the
- Switching information to the power semiconductor switch 4 which consists of switching states and / or switching times.
- a code word 10 is at least det gesen- containing switching information for at least one power semiconductor switch ⁇ . 4
- the codeword 10 is repeated until it is cut off by the beginning of a new send block 7. By cutting off the last repetition of the codeword 10 results in the fragment 11.
- the transmission of a new transmission block 7 can also be used when a repetition of a codeword 10 is completed, so that no fragment 11 is formed.
- a decentralized controller 3 can check whether a codeword has been received correctly.
- FIG. 6 shows a further embodiment for the data ⁇ protocol.
- this embodiment in a co ⁇ dewort 10 switching states and switching times transmitted WO 200513310
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Abstract
Description
Beschreibungdescription
Verfahren und Vorrichtung zur Übertragung von SignalenMethod and device for transmitting signals
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Übertragung von Signalen zwischen einer zentralen Steuerung und einer oder mehreren dezentralen Steuerungen.The invention relates to a method and a device for transmitting signals between a central controller and one or more decentralized controllers.
Zur Steuerung von Stromrichterschaltungen müssen Schaltsigna- Ie mit einer hohen Zeitauflösung und geringer Übertragungs- verzögerungszeit jitterfrei von einer zentralen Steuerung an die Leistungshalbleiterschalter des Stromrichters übertragen werden.In order to control converter circuits, switching signals with a high time resolution and a low transmission delay time must be transferred jitter-free from a central controller to the power semiconductor switches of the converter.
Um eine hohe Zuverlässigkeit und Verfügbarkeit eines Strom¬ richters zu gewährleisten, darf die Übertragung der Signale nicht gestört oder kurz unterbrochen werden. Eine Störung kann unter Umständen zur sofortigen Zerstörung des Stromrichters und der ihm zugeordneter Anlagen, z.B. elektrischen Ma- schinen, führen. Aus diesem Grund existieren extrem hohe Anforderungen an die Störsicherheit der Signalübertragung.To ensure high reliability and availability of power ¬ judicature, the transmission of the signals must not be disturbed or interrupted briefly. Under certain circumstances, a fault can lead to the immediate destruction of the converter and its associated equipment, eg electric machines. For this reason, there are extremely high demands on the noise immunity of the signal transmission.
Zur Ansteuerung eines einzelnen Leistungshalbleiterschalters wird nach heutigem Stand ein Lichtwellenleiter oder Transfor- mator benötigt, was die Kosten erhöht. Bei Stromrichtern mit einer Vielzahl von unabhängigen Leistungshalbleiterschaltern ergeben sich dementsprechend viele Lichtwellenleiter, die zur Ansteuerung der Leistungshalbleiterschalter verwendet werden.To control a single power semiconductor switch an optical waveguide or transformer is required today, which increases the cost. In converters with a large number of independent power semiconductor switches, accordingly, there are many optical waveguides which are used to control the power semiconductor switches.
Entsprechend ist die Ausfallwahrscheinlichkeit der Gesamt¬ übertragung höher und darunter leidet wiederum die Verfügbarkeit des Stromrichters. Dies gilt insbesondere für Mehrpunkt¬ stromrichter mit einer sehr großen Anzahl von zu steuernden Leistungshalbleiterschaltern wie z.B. in der Schrift DE 101 03 031 Al vorgestellt.Accordingly, the probability of failure of the total ¬ transmission is higher and in turn suffers the availability of the power converter. This is especially true for multipoint ¬ power converter presented 101 03 031 Al with a very large number of to be controlled power semiconductor switches, such as in DE.
Aufgrund der begrenzten Lebensdauer von Leuchtdioden, die die Lichtsignale über die Lichtwellenleiter senden, wird mit die- 200513310Due to the limited service life of light emitting diodes which transmit the light signals via the optical waveguides, this 200513310
ser Technik bei Mehrpunktstromrichtern mit einer Vielzahl an zu steuernden Leistungshalbleiterschaltern die Ausfallrate des gesamten Stromrichters empfindlich verschlechtert.In the case of multipoint converters with a multitude of power semiconductor switches to be controlled, the failure of the entire power converter is seriously impaired.
Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Verfah¬ ren und eine Vorrichtung zur Übertragung von Signalen zur Ansteuerung von Leistungshalbleiterschaltern anzugeben, bei welchen die Zuverlässigkeit der Signalübertragung verbessert ist und bei welcher Kosten reduziert werden.The invention is therefore based on the object, reindeer a procedural ¬ and to provide a device for transmitting signals for controlling power semiconductor switches in which the reliability of the signal transmission is improved and can be reduced in which costs.
Diese Aufgabe wird erfindungsgemäß gelöst, durch ein Verfah¬ ren zur Übertragung von Signalen zwischen einer zentralen Steuerung und einer oder mehreren dezentralen Steuerungen, wobei jeder dezentralen Steuerung ein oder mehrere Leistungs- halbleiterschalter zugeordnet sind, wobeiThis object is achieved according to the invention, by a procedural ¬ ren for transmitting signals between a central controller and being associated with each decentralized control one or more power semiconductor switches one or more remote controllers, wherein
• jeder Leistungshalbleiterschalter zumindest zwei Schaltzustände aufweist,Each power semiconductor switch has at least two switching states,
• die Signale von der zentralen Steuerung zu den dezentralen Steuerungen mittels einer Funkschnittstelle oder ei- nes Lichtwellenleiters übertragen werden, wobei im Fall des Lichtwellenleiters die dezentralen Steuerungen alle mit dem Lichtwellenleiter verbunden sind,The signals are transmitted from the central controller to the decentralized controllers by means of a radio interface or an optical waveguide, wherein in the case of the optical waveguide the decentralized controllers are all connected to the optical waveguide,
• die zentrale Steuerung Sendeblöcke als Signale zu einer dezentralen Steuerung sendet, wobei die Sendeblöcke aus Bits bestehen, die in einem Bittakt gesendet werden und wobei der Sendeblock durch ein Barkercodewort angeführt wird, welchem die Schaltinformation für zumindest einen Leistungshalbleiterschalter in einem Datenblock folgt, wobei die Schaltinformation Schaltzustände und/oder Schaltzeitpunkte enthält.The central controller transmits transmission blocks as signals to a decentralized controller, the transmission blocks consisting of bits transmitted in a bit clock, the transmission block being followed by a bar code word followed by the switching information for at least one power semiconductor switch in a data block; Switching information contains switching states and / or switching times.
Dadurch wird vorteilhaft erreicht, dass im Fall einer Über¬ tragung der Signale über eine leitungsgebundene Datenübertra¬ gungsstrecke bzw. einen Lichtwellenleiter nur noch eine Da- tenübertragungsstrecke verwendet werden muss, um mehrereThis advantageously means that, in the event of a ¬ of the signals over a wired transmission Datenübertra ¬ transmission link or an optical fiber, only a DA must be used tenübertragungsstrecke to several
Leistungshalbleiterschalter anzusteuern. Ggf. können mehrere dezentrale Steuerungen vorgesehen werden, welche alle an einem Lichtwellenleiter angeschlossen sind, wobei die dezentra- 200513310Power semiconductor switch to control. Possibly. Several decentralized controllers can be provided, all of which are connected to an optical waveguide, whereby the decentralized 200513310
len Steuerungen je nur einen Leistungshalbleiterschalter ansteuern. Denkbar ist auch, dass nur eine dezentrale Steuerung vorgesehen ist, welche alle Leistungshalbleiterschalter ansteuert. Auch Zwischenformen mit mehreren dezentralen Steue- rungen, welche jeweils mehrere Leistungshalbleiterschalter ansteuern, sind denkbar. Die Leistungshalbleiterschalter können dabei z.B. IGBTs (Insulated Gate Bipolar Transistor) oder Transistoren oder auch Thyristoren sein. Die Vorteile werden erzielt durch eine erfindungsgemäße digitale Übertragung der Schaltinformation an die dezentralen Steuerungen, bei welcher die Schaltinformation an mehrere Leistungshalbleiterschalter über einen oder mehrere unabhängige Lichtwellenleiter übertragen wird. Die Schaltinformation enthält Schaltzustände und/oder Schaltzeitpunkte, wobei die Schaltzeitpunkte ange- ben, zu welchen Zeiten die Schaltzustände der Leistungshalb¬ leiterschalter gelten sollen. Es kann auch signalisiert werden, dass ein Schaltzustand eines Leistungshalbleiterschal¬ ters gleich bleiben soll, indem ein Schaltzustand übertragen wird, welcher bereits im Leistungshalbleiterschalter vor- liegt.len controllers each drive only one power semiconductor switch. It is also conceivable that only a decentralized control is provided, which controls all power semiconductor switches. Intermediate forms with a plurality of decentralized controllers, which each control a plurality of power semiconductor switches, are also conceivable. The power semiconductor switches can be eg IGBTs (Insulated Gate Bipolar Transistor) or transistors or also thyristors. The advantages are achieved by a digital transmission according to the invention of the switching information to the decentralized controllers, in which the switching information is transmitted to a plurality of power semiconductor switches via one or more independent optical waveguides. The switching information includes switching states and / or switching times, the switching times ben reasonable, are the times at which the switching states of the power semi-conductor switch is ¬ apply. It can also be signaled that a switching state of a power semiconductor scarf ¬ ters should remain the same by a switching state is transmitted, which is already present in the power semiconductor switch.
Die Lichtwellenleiter können auch durch eine beliebige leitungsgebundene Datenübertragungsstrecke wie z.B. eine Trans¬ formatorübertragungsstrecke (bestehend aus einem oder mehre- ren Transformatoren z.B. auch Planartransformatoren) ersetzt werden.The optical waveguide may have a Trans ¬ formatorübertragungsstrecke (from one or several transformers ren example, also consisting Planar) be replaced by an arbitrary line-connected data transmission path like.
Im Fall der Übertragung über eine Funkschnittstelle anstatt über eine leitungsgebundene Datenübertragungsstrecke werden Lichtwellenleiter eingespart und die Zuverlässigkeit der Ü- bertragung und/oder die Freiheiten bei der Stromrichterkonstruktion werden erhöht.In the case of transmission via a radio interface instead of a line-connected data transmission optical fibers are saved and the reliability of the transmission and / or the freedom in the power converter design are increased.
Eine vorteilhafte Ausgestaltung ergibt sich, wenn die Schalt- Information in der zentralen Steuerung kanalcodiert wird, so dass auftretende Fehler bei der Übertragung in einer dezentralen Steuerung korrigiert werden können. Damit wird die Ü- bertragung nochmals zuverlässiger ausgeführt. Die Schaltin- 200513310An advantageous embodiment results when the switching information is channel-coded in the central controller, so that occurring errors in the transmission in a decentralized control can be corrected. This makes the transmission even more reliable. The switching 200513310
formation kann mittels eines Faltungscodes oder zyklisch Co¬ des oder Blockcodes kanalcodiert werden. Vorteilhafter Weise wird die Schaltinformation nach dem Kanalcodieren einem In- terleaving unterzogen, um Bündelfehler zu vermeiden. Der ge- wählte Barkercode besitzt eine Hamming-Distanz von deutlich größer als 1 gegenüber allen möglichen Kombinationen der über den gleichen Datenkanal übertragenen Daten.formation, by means of a convolutional code or cyclically Co be channel-coded of the ¬ or block codes. Advantageously, the switching information is interleaved after channel coding in order to avoid burst errors. The selected bar code has a Hamming distance of significantly greater than 1 against all possible combinations of the data transmitted over the same data channel.
Erfindungsgemäß führt die dezentrale Steuerung eine Bitsyn- chronisation durch, so dass Anfang und Ende eines Bits be¬ kannt sind, um die übertragenen Sendeblöcke korrekt empfangen zu können. Die BitSynchronisation kann mit Hilfe einer Phase- Locked-Loop (PLL) -Einheit durchgeführt werden. Weiterhin nimmt die dezentrale Steuerung eine Abtastung des Empfangssignals vor, wobei die Abtastfrequenz größer oder gleich dem Bittakt ist. Damit kann vorteilhaft die Signalqualität eingeschätzt werden.According to the invention, the remote controller performs a Bitsyn- chronization through, so that the beginning and end of a bit be ¬ are known to be able to correctly receive the transmitted transmission blocks. Bit synchronization can be performed using a phase locked loop (PLL) unit. Furthermore, the decentralized controller performs a sampling of the received signal, wherein the sampling frequency is greater than or equal to the bit clock. Thus, the signal quality can advantageously be estimated.
Vorteilhaft nimmt die dezentrale Steuerung eine Synchronisa- tion mittels des Barkercodeworts vor, so dass der Anfang ei¬ nes Sendeblocks und/oder eines Datenblocks bekannt ist. Es können aber auch Alternativen eingesetzt werden, die der Eigenschaft der Barkercodewörter ähneln. Das Barkercodewort signalisiert den Beginn eines neuen Sendeblocks und ist auf- grund seiner Autokorrelationseigenschaften leicht zu detek- tieren.Advantageously, the decentralized controller performs a synchronization by means of the Barkercodeworts, so that the beginning ei ¬ nes Sendeblocks and / or a data block is known. But it can also be used alternatives that are similar to the property of the Barker codewords. The barker codeword signals the beginning of a new send block and is easy to detect due to its autocorrelation properties.
Hat die dezentrale Steuerung Schaltinformation für zumindest einen ihr zugeordneten Leistungshalbleiterschalter empfangen, so steuert sie den Leistungshalbleiterschalter entsprechend elektrisch an, so dass dieser in seinem Schaltzustand verbleibt oder in einen anderen Schaltzustand übergeht.If the decentralized control unit has received switching information for at least one power semiconductor switch assigned to it, then it electrically controls the power semiconductor switch so that it remains in its switching state or changes over to another switching state.
Die dezentrale Steuerung empfängt Schaltinformation für zu- mindest einen ihr zugeordneten Leistungshalbleiterschalter und übermittelt die Schaltinformationen an den Leistungshalb¬ leiterschalter mit einem beliebigen Übertragungsverfahren weiter. 200513310The remote controller receives switching information for supply least an associated power semiconductor switch and transmits the control information to the power semi-conductor switches ¬ with any transmission method on. 200513310
Vorteilhafter Weise wird in einem Datenblock zumindest ein Codewort gesendet, welches wiederholt wird, bis ein neuer Sendeblock gesendet wird, wobei das Codewort Schaltinformati- on für zumindest einen Leistungshalbleiterschalter enthält und Wiederholungen des Codewortes durch den Beginn eines neuen Sendeblocks abgeschnitten werden können. Die Wiederholungen dienen dabei vorteilhafter Weise zur Überprüfung in der dezentralen Steuerung, ob die Schaltinformation korrekt emp- fangen wurde.Advantageously, at least one code word is sent in a data block, which is repeated until a new transmission block is transmitted, wherein the code word contains switching information for at least one power semiconductor switch and repetitions of the code word can be cut off by the beginning of a new transmission block. The repetitions serve advantageously for checking in the decentralized control whether the switching information was received correctly.
Vorteilhafter Weise können auch zusammen mit den Schaltinformationen der Leistungshalbleiterschalter weitere Informationen in den Datenstrom integriert werden. So könnte beispiels- weise das Codewort auch zusätzliche Messbefehle oderAdvantageously, further information can be integrated into the data stream together with the switching information of the power semiconductor switch. For example, the code word could also include additional measurement commands or
Messtrigger bzw. weitere beliebige Befehle an die dezentralen Steuerungen oder die Leistungshalbleiterschalter enthalten.Messtrigger or any other commands to the decentralized controllers or the power semiconductor switches included.
Eine vorteilhafte Ausführungsform ergibt sich, wenn im Code- wort nur Schaltzustände übertragen werden und der Schaltzeit¬ punkt aus einer vorgebbaren Zeitverzögerung und dem Empfangszeitpunkt des Barkercodeworts errechnet wird. Damit wird die Übertragung effizient durchgeführt, da keine Zeit für die Ü- bertragung der Schaltzeitpunkte verwendet werden muss. Dann kann vorteilhaft auch die Information über die Schaltzustände für mehrere Leistungshalbleiterschalter mittels Bits übertragen werden. Die Bits können vorteilhafter Weise im Codewort derart angeordnet werden, dass jeweils zuerst alle n-ten Bits der Information über die Schaltzustände für jeden Leistungs- halbleiterschalter übertragen werden, bevor die (n+l)-ten Bits übertragen werden. D.h., es werden zuerst die ersten Bits der Schaltinformation aller Leistungshalbleiterschalter übertragen und dann die zweiten Bits usw..An advantageous embodiment results when word in the code only switching states are transmitted and the switching time ¬ point of a predefined time delay and the reception time of the Barker code word is calculated. Thus, the transmission is carried out efficiently, since no time for the transmission of the switching times must be used. Then advantageously, the information about the switching states for a plurality of power semiconductor switches can be transmitted by means of bits. The bits can advantageously be arranged in the code word such that in each case firstly all n-th bits of the information about the switching states are transmitted for each power semiconductor switch before the (n + 1) -th bits are transmitted. That is, first the first bits of the switching information of all the power semiconductor switches are transmitted, and then the second bits, etc.
Eine weitere erfindungsgemäße Ausgestaltung ergibt sich, wenn im Codewort Schaltzustände und Schaltzeitpunkte übertragen werden, wobei die Schaltzustände in einem ersten Teil und die zugehörigen Schaltzeitpunkte in einem zweiten Teil des Code- 200513310A further embodiment according to the invention results when switching states and switching times are transmitted in the code word, wherein the switching states in a first part and the associated switching times in a second part of the code 200513310
wortes übertragen werden. Damit ist vorteilhaft eine erhöhte Präzision bei den Schaltzeitpunkten zu erreichen.be transmitted. This is advantageous to achieve increased precision at the switching times.
Vorteilhafter Weise überprüft die dezentrale Steuerung anhand der Wiederholungen der Codewörter, ob die Schaltinformation korrekt empfangen wurde und misst die Qualität der Übertra¬ gung anhand der abgetasteten Bits und/oder der Kanaldecodie- rung. Damit sind Fehler beim Lichtwellenleiter frühzeitig erkennbar und z.B. an die zentrale Steuerung signalisierbar.Advantageously, checks the distributed control based on the repetitions of the code words, whether the switch information has been correctly received and measures the quality of Übertra ¬ supply based on the sampled bits and / or the Kanaldecodie- tion. This makes faults in the optical waveguide recognizable at an early stage and can be signaled to the central controller, for example.
Vorteilhaft werden Signale von den dezentralen Steuerungen zur zentralen Steuerung mittels einer Funkschnittstelle oder eines weiteren Lichtwellenleiters übertragen, wobei die Sig¬ nale Fehlermeldungen und/oder Messwerte enthalten und wobei im Fall des weiteren Lichtwellenleiters die dezentralen Steu¬ erungen alle mit dem weiteren Lichtwellenleiter verbunden sind. Die Signale von den dezentralen Steuerungen zur zentralen Steuerung werden derart gesendet, dass die Fehlermeldungen und/oder Messwerte für jeden Leistungshalbleiterschalter in einem Block zusammengefasst werden und die Blöcke nachein¬ ander gesendet werden. D.h., die Daten werden Block für Block für jeden Leistungshalbleiterschalter gesendet.Signals are advantageously transferred from the remote controllers to the central controller via a radio interface or a further light waveguide, containing Sig ¬ dimensional error messages and / or measured values, and wherein in case of the further light waveguide, the decentralized STEU ¬ modified later are all connected to the further optical waveguide. The signals from the remote controllers to the central controller is sent such that the error messages and / or measured values are summarized for each power semiconductor switch in a block and the blocks one after the other ¬ be sent. That is, the data is sent block by block for each power semiconductor switch.
Die Übertragung über eine Funkschnittstelle kann vorteilhaf- ter Weise mittels eines WLAN (Wireless Local Area Network, WLAN) ausgeführt werden.The transmission via a radio interface can advantageously be carried out by means of a WLAN (Wireless Local Area Network, WLAN).
Die erfindungsgemäßen Übertragungsverfahren bieten zusätzlich auch noch Diagnosemöglichkeiten, mit deren Hilfe der Quali- tätszustand des Lichtwellenleiters überprüft werden kann.The transmission methods according to the invention additionally also offer diagnostic possibilities with the aid of which the quality state of the optical waveguide can be checked.
Dies ermöglicht, dass bei routinemäßigen Wartungen gealterte Lichtwellenleiter bereits vor dem Ausfall der Signalübertra¬ gung ausgetauscht werden könnten. Zusätzlich eröffnet die kanalcodierte Signalübertragung noch die Möglichkeit, z.B. Triggersignale für Messaufnehmer zu versenden oder auch Diagnosemeldungen, wie z.B. die Sperrschichttemperatur der Leistungshalbleiter zusammen mit möglichen Diagnosemeldungen an die zentrale Steuerung zu übertragen. 200513310This makes it possible for routinely serviced aged optical waveguides to be exchanged even before the signal transmission has failed . In addition, the channel-coded signal transmission also offers the possibility, for example, to send trigger signals for sensors or to transmit diagnostic messages, such as the junction temperature of the power semiconductors, together with possible diagnostic messages to the central controller. 200513310
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß den Merkmalen der Unteransprüche werden im Folgenden anhand von schematisch dargestellten Ausführungs- beispielen in den Zeichnungen näher erläutert, ohne dass dadurch eine Beschränkung der Erfindung auf diese Ausführungsbeispiele erfolgt; es zeigen:The invention and further advantageous embodiments of the invention according to the features of the subclaims are explained in more detail below with reference to schematically illustrated exemplary embodiments in the drawings, without thereby limiting the invention to these embodiments; show it:
FIG 1 ein Ausführungsbeispiel für das Übertragungssystem; FIG 2 ein weiteres Ausführungsbeispiel für das Übertra¬ gungssystem;1 shows an embodiment of the transmission system; 2 shows a further embodiment of the Übertra ¬ supply system;
FIG 3 ein weiteres Ausführungsbeispiel für das Übertra¬ gungssystem;3 shows a further embodiment of the Übertra ¬ supply system;
FIG 4 das Datenprotokoll; FIG 5 ein Ausführungsbeispiel für das Datenprotokoll;4 shows the data protocol; 5 shows an embodiment of the data protocol;
FIG 6 ein weiteres Ausführungsbeispiel für das Datenpro¬ tokoll.6 shows another embodiment of the Datenpro ¬ protocol.
FIG 1 zeigt ein Ausführungsbeispiel für das Übertragungssys- tem mit der zentralen Steuerung 1 und einer dezentrale Steuerung 3, welche mittels des Lichtwellenleiters 2 miteinander verbunden sind. An der dezentralen Steuerung 3 sind Leistungshalbleiterschalter 4 angeschlossen.1 shows an exemplary embodiment of the transmission system with the central controller 1 and a decentralized control 3, which are connected to one another by means of the optical waveguide 2. At the decentralized controller 3 power semiconductor switch 4 are connected.
Die zentrale Steuerung 1 sendet die Schaltinformation für die Leistungshalbleiterschalter 4 über eine leitungsgebundene Datenübertragungsstrecke 2, welche durch einen Lichtwellenlei¬ ter oder eine transformatorische Datenübertragung realisiert sein kann, an die dezentrale Steuerung 3, welche die Schalt- Information empfängt und die Leistungshalbleiterschalter 4 entsprechend ansteuert, so dass diese in ihrem Schaltzustand verbleiben oder in einen anderen Schaltzustand übergehen.The central controller 1 sends the switching information for the power semiconductor switch 4 via a line-connected data transmission path 2, which can be realized by a Lichtwellenlei ¬ ter or a transformatory data transmission to the decentralized controller 3, which receives the switching information and the power semiconductor switch 4 accordingly, so that they remain in their switching state or change over to another switching state.
Zusätzlich zur Übertragung von Schaltinformationen an die Leistungshalbleiterschalter können auch weitere beliebigeIn addition to the transmission of switching information to the power semiconductor switch can also be any other
Steuerbefehle (z.B. Messbefehle) an die dezentralen Steuerun¬ gen oder Leistungshalbleiterschalter (3) übertragen werden. 200513310Control commands (eg measurement commands) to the decentralized Steuerun ¬ gen or power semiconductor switch (3) are transmitted. 200513310
Generell kann die Übertragung auch mit Hilfe von Transforma¬ toren, auch Planartransformatoren, anstatt mit Lichtwellenleitern durchgeführt werden.In general, the transfer can with the help of Transforma ¬ tors, including Planar, rather than be carried out with optical fibers.
Weiterhin kann jede einzelne dezentrale Steuerung 3 eine ei¬ gene Lichtwellenleiterverbindung zur zentralen Steuerung 1 haben, die unabhängig von den anderen Lichtwellenleiterverbindungen istFurthermore, each individual decentralized controller 3 may have an egg ¬ gene optical fiber connection to the central controller 1, which is independent of the other optical fiber connections
FIG 2 zeigt ein weiteres Ausführungsbeispiel für das Übertra¬ gungssystem. In diesem Ausführungsbeispiel sind mehrere de¬ zentrale Steuerungen 3 über den Lichtwellenleiter 2 mit der zentralen Steuerung 1 verbunden. Jeder dezentralen Steuerung 3 sind dabei ein oder mehrere Leistungshalbleiterschalter 4 zugeordnet .2 shows another embodiment for the Übertra ¬ supply system. In this embodiment, several de ¬ central controllers 3 are connected via the optical waveguide 2 with the central controller 1. Each decentralized controller 3 are assigned one or more power semiconductor switches 4.
Die zentrale Steuerung 1 sendet die Schaltinformation für die Leistungshalbleiterschalter 4 über den Lichtwellenleiter 2 an die dezentrale Steuerungen 3, welche die Schaltinformation empfangen und die Leistungshalbleiterschalter 4 entsprechend ansteuern, so dass diese in ihrem Schaltzustand verbleiben oder in einen anderen Schaltzustand übergehen.The central controller 1 sends the switching information for the power semiconductor switch 4 via the optical waveguide 2 to the decentralized controllers 3, which receive the switching information and the power semiconductor switch 4 accordingly, so that they remain in their switching state or go into another switching state.
FIG 3 zeigt ein weiteres Ausführungsbeispiel für das Übertra¬ gungssystem. In diesem Ausführungsbeispiel sind mehrere de¬ zentrale Steuerungen 3 über eine Funkschnittstelle 14 mit der zentralen Steuerung 1 verbunden. Jeder dezentralen Steuerung 3 sind dabei ein oder mehrere Leistungshalbleiterschalter 4 zugeordnet. Die zentrale Steuerung weist eine Antenne 5 auf. Die dezentralen Steuerungen weisen Antennen 6 zum Empfang der Schaltinformation auf.3 shows a further embodiment for the Übertra ¬ supply system. In this embodiment, several de ¬ central controllers 3 are connected via a radio interface 14 to the central controller 1. Each decentralized controller 3 are assigned one or more power semiconductor switches 4. The central controller has an antenna 5. The decentralized controllers have antennas 6 for receiving the switching information.
Die zentrale Steuerung 1 sendet die Schaltinformation für die Leistungshalbleiterschalter 4 über die Funkschnittstelle 14 an die dezentralen Steuerungen 3, welche die Schaltinformati¬ on empfangen und die Leistungshalbleiterschalter 4 entspre- 200513310The central controller 1 sends the switching information for the power semiconductor switches 4 via the radio interface 14 to the decentralized controllers 3, which receive the Schaltinformati ¬ on and the power semiconductor switch 4 accordingly 200513310
chend ansteuern, so dass diese in ihrem Schaltzustand ver¬ bleiben oder in einen anderen Schaltzustand übergehen.accordingly drive, so that these ver in its switching state ¬ remain or go to another switching state.
FIG 4 zeigt das Datenprotokoll, welches für die Übertragung der Schaltinformation von der zentralen Steuerung 1 zu den dezentralen Steuerungen 3 verwendet wird. Die zentrale Steue¬ rung 1 sendet Sendeblöcke 7, welche aus einem Barkercodewort 8 und einem Datenblock 9 bestehen. Die Sendeblöcke 7 beinhal¬ ten Bits, welche in einem Bittakt gesendet werden. Die Daten- blocke 9 enthalten die Schaltinformation an die Leistungshalbleiterschalter 4, welche aus Schaltzuständen und/oder Schaltzeitpunkten besteht.4 shows the data protocol which is used for the transmission of the switching information from the central controller 1 to the decentralized controllers 3. The central Steue ¬ tion 1 sends transmission blocks 7, which consist of a Barkercodewort 8 and a data block 9. The transmission blocks 7 beinhal ¬ th bits, which are sent in a bit clock. The data blocks 9 contain the switching information to the power semiconductor switches 4, which consists of switching states and / or switching times.
FIG 5 zeigt ein Ausführungsbeispiel für das Datenprotokoll, welches für die Übertragung der Schaltinformation von der zentralen Steuerung 1 zu den dezentralen Steuerungen 3 verwendet wird. Die zentrale Steuerung 1 sendet Sendeblöcke 7, welche aus einem Barkercodewort 8 und einem Datenblock 9 be¬ stehen. Die Sendeblöcke 7 beinhalten Bits, welche in einem Bittakt gesendet werden. Die Datenblöcke 9 enthalten die5 shows an exemplary embodiment of the data protocol which is used for the transmission of the switching information from the central controller 1 to the decentralized controllers 3. The central controller 1 sends transmission blocks 7, which are ¬ from a Barker codeword 8 and a data block 9. The transmission blocks 7 include bits which are transmitted in a bit clock. The data blocks 9 contain the
Schaltinformation an die Leistungshalbleiterschalter 4, welche aus Schaltzuständen und/oder Schaltzeitpunkten besteht.Switching information to the power semiconductor switch 4, which consists of switching states and / or switching times.
In einem Datenblock 9 wird zumindest ein Codewort 10 gesen- det, welches Schaltinformation für zumindest einen Leistungs¬ halbleiterschalter 4 enthält. Das Codewort 10 wird solange wiederholt, bis es durch den Beginn eines neuen Sendeblocks 7 abgeschnitten wird. Durch das Abschneiden der letzten Wiederholung des Codewortes 10 ergibt sich das Fragment 11. Die Übertragung eines neuen Sendeblocks 7 kann auch einsetzen, wenn eine Wiederholung eines Codewortes 10 abgeschlossen ist, so dass kein Fragment 11 entsteht. Durch die Wiederholung des Codewortes 10 kann eine dezentrale Steuerung 3 überprüfen, ob ein Codewort korrekt empfangen wurde.In a data block 9, a code word 10 is at least det gesen- containing switching information for at least one power semiconductor switch ¬. 4 The codeword 10 is repeated until it is cut off by the beginning of a new send block 7. By cutting off the last repetition of the codeword 10 results in the fragment 11. The transmission of a new transmission block 7 can also be used when a repetition of a codeword 10 is completed, so that no fragment 11 is formed. By repeating the codeword 10, a decentralized controller 3 can check whether a codeword has been received correctly.
FIG 6 zeigt ein weiteres Ausführungsbeispiel für das Daten¬ protokoll. Bei diesem Ausführungsbeispiel werden in einem Co¬ dewort 10 Schaltzustände und Schaltzeitpunkte übertragen, wo- 2005133106 shows a further embodiment for the data ¬ protocol. In this embodiment, in a co ¬ dewort 10 switching states and switching times transmitted WO 200513310
1010
bei die Schaltzustände in einem ersten Teil 12 und die zuge¬ hörigen Schaltzeitpunkte in einem zweiten Teil 13 des Code¬ wortes übertragen werden. and the supplied ¬ impaired switching time points of the code ¬ word are transmitted in the switching states in a first part 12 in a second part. 13
Claims
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DE102005045957.9 | 2005-09-26 | ||
DE102005045957A DE102005045957A1 (en) | 2005-09-26 | 2005-09-26 | Signal transmission method between a central control and decentralized controls and device uses power semiconductor having at least two switch condition and radio or light guide transmission |
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WO2007036379A2 true WO2007036379A2 (en) | 2007-04-05 |
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WO2021233522A1 (en) * | 2020-05-18 | 2021-11-25 | Abb Power Grids Switzerland Ag | Closed loop control of modular-multilevel converter by means of wireless exchange between valve control unit and cell control units |
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US4121295A (en) * | 1977-04-07 | 1978-10-17 | Wittronics, Inc. | Integer weighted impulse equivalent coded signal processing apparatus |
US5198796A (en) * | 1991-06-27 | 1993-03-30 | Distribution Control Systems, Inc. | Outbound signal detector system and method |
DE4408163A1 (en) * | 1994-03-11 | 1995-09-14 | Bosch Gmbh Robert | Method of transferring data |
DE19620442A1 (en) * | 1996-05-21 | 1997-11-27 | Siemens Ag | Inverter system |
JP2004013450A (en) * | 2002-06-06 | 2004-01-15 | Hitachi Ltd | Switchboard switchgear and operation monitoring control system |
-
2005
- 2005-09-26 DE DE102005045957A patent/DE102005045957A1/en not_active Ceased
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2006
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20150008115A (en) * | 2012-04-20 | 2015-01-21 | 아만티스 엘티디 | Communication Protocol |
KR102030099B1 (en) | 2012-04-20 | 2019-10-08 | 마쉬넨파브릭 레인하우센 게엠베하 | Communication Protocol |
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DE102005045957A1 (en) | 2006-11-16 |
WO2007036379A3 (en) | 2008-04-10 |
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