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WO2018179716A1 - Dispositif de conversion de puissance, système de conversion de puissance - Google Patents

Dispositif de conversion de puissance, système de conversion de puissance Download PDF

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Publication number
WO2018179716A1
WO2018179716A1 PCT/JP2018/001806 JP2018001806W WO2018179716A1 WO 2018179716 A1 WO2018179716 A1 WO 2018179716A1 JP 2018001806 W JP2018001806 W JP 2018001806W WO 2018179716 A1 WO2018179716 A1 WO 2018179716A1
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WO
WIPO (PCT)
Prior art keywords
power
output
converter
inverter
bus
Prior art date
Application number
PCT/JP2018/001806
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English (en)
Japanese (ja)
Inventor
菊池　彰洋
渉 堀尾
藤井　裕之
賢治 花村
智規 伊藤
康太 前場
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2018179716A1 publication Critical patent/WO2018179716A1/fr

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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
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • 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

Definitions

  • the present invention relates to a power conversion device and a power conversion system that convert DC power into AC power.
  • distributed power sources that are grid-connected include solar cells, fuel cells, stationary storage batteries, and in-vehicle storage batteries as power sources.
  • a typical configuration of a distributed power supply system connected to a system is a configuration in which a single distributed power supply is used to connect the system via a DC-DC converter, a DC bus and an inverter, and a plurality of distributed power supplies. Are connected to each other via each DC-DC converter, a common DC bus, and one inverter (see, for example, Patent Document 1).
  • the DC-DC converter and the inverter are physically installed in a single housing, the DC-DC converter and the inverter are controlled independently by separate control devices (for example, a microcomputer). Sometimes it is done. In such a distributed power supply system in which the DC-DC converter and the inverter are physically or controlly separated, the inverter and various distributed power supplies can be freely combined.
  • Integral distributed power supply system basically manages all information in a single control unit and adjusts the input / output power of the system according to the situation.
  • adaptive suppression control is performed on the input side and / or output side, and control is performed so that power balance of the entire system is maintained.
  • each control unit is separated, and it is difficult to collectively control the input / output power of the system. If appropriate suppression control is not performed in response to suppression instructions corresponding to various output suppression reasons, the power balance of the entire system is lost.
  • This invention is made
  • the objective is to provide the power converter device and power conversion system which can perform exact output suppression control with respect to generation
  • a power converter converts a voltage of DC power output from a power generator that generates power based on renewable energy, and outputs the converted DC power to a DC bus.
  • a first DC-DC converter an inverter connected to the first DC-DC converter via the DC bus, converting DC power of the DC bus into AC power, and supplying the converted AC power to a load or a power system
  • a control circuit for controlling the inverter The said control circuit changes the amount of suppression of the output of the said inverter according to the classification of the output suppression reason of this power converter device.
  • FIGS. 2A and 2B are diagrams schematically illustrating the state of the voltage of the DC bus.
  • Drawing 3 (a) and (b) is a figure showing an example of an output control reason when the 2nd power converter is in a disconnection state, and an output control reason when the 2nd power converter is in a connection state. It is a figure which shows an example of the output of an inverter in case multiple types of output suppression reasons generate
  • FIG. 1 is a diagram for explaining a power conversion system 1 according to an embodiment of the present invention.
  • the power conversion system 1 includes a first power conversion device 10 and a second power conversion device 20.
  • the first power conversion device 10 is a power conditioner system for the solar cell 2
  • the second power conversion device 20 is a power conditioner system for the power storage unit 3.
  • FIG. 1 the example which retrofitted the power conditioner system for the electrical storage part 3 to the power conditioner system for the solar cells 2 is shown.
  • the solar cell 2 is a power generation device that directly converts light energy into electric power using the photovoltaic effect.
  • a silicon solar cell, a solar cell made of a compound semiconductor or the like, a dye-sensitized type (organic solar cell), or the like is used as the solar cell 2.
  • the solar cell 2 is connected to the first power conversion device 10 and outputs the generated power to the first power conversion device 10.
  • the first power converter 10 includes a DC-DC converter 11, a converter control circuit 12, an inverter 13, a temperature sensor T1, an inverter control circuit 14, and a system control circuit 15.
  • the system control circuit 15 includes an output suppression control unit 15a and a command value generation unit 15b.
  • the DC-DC converter 11 and the inverter 13 are connected by a DC bus 40.
  • the converter control circuit 12 and the system control circuit 15 are connected by a communication line 41, and communication conforming to a predetermined serial communication standard (for example, RS-485 standard, TCP-IP standard) is performed between the two.
  • a predetermined serial communication standard for example, RS-485 standard, TCP-IP standard
  • the DC-DC converter 11 converts the DC power output from the solar cell 2 into DC power having a desired voltage value, and outputs the converted DC power to the DC bus 40.
  • the DC-DC converter 11 can be constituted by a step-up chopper, for example.
  • the converter control circuit 12 controls the DC-DC converter 11. As a basic control, the converter control circuit 12 performs MPPT (Maximum Power Point Tracking) control of the DC-DC converter 11 so that the output power of the solar cell 2 is maximized. Specifically, converter control circuit 12 measures the input voltage and input current of DC-DC converter 11, which are the output voltage and output current of solar cell 2, and estimates the generated power of solar cell 2. The converter control circuit 12 generates a command value for setting the generated power of the solar battery 2 to the maximum power point (optimum operating point) based on the measured output voltage of the solar battery 2 and the estimated generated power.
  • MPPT Maximum Power Point Tracking
  • the maximum power point is searched by changing the operating point voltage with a predetermined step width according to the hill-climbing method, and the command value is generated so as to maintain the maximum power point.
  • the DC-DC converter 11 performs a switching operation according to a drive signal based on the generated command value.
  • the inverter 13 is a bidirectional inverter that converts DC power input from the DC bus 40 into AC power and outputs the converted AC power to a distribution line 50 connected to a commercial power system (hereinafter simply referred to as system 4). To do. A load 5 is connected to the distribution line 50. Further, the inverter 13 converts AC power supplied from the system 4 into DC power, and outputs the converted DC power to the DC bus 40. A smoothing electrolytic capacitor (not shown) is connected to the DC bus 40.
  • the inverter control circuit 14 controls the inverter 13. As a basic control, the inverter control circuit 14 controls the inverter 13 so that the voltage of the DC bus 40 maintains the first threshold voltage. Specifically, the inverter control circuit 14 detects the voltage of the DC bus 40 and generates a command value for making the detected bus voltage coincide with the first threshold voltage. The inverter control circuit 14 generates a command value for increasing the duty ratio of the inverter 13 when the voltage of the DC bus 40 is higher than the first threshold voltage, and the inverter control circuit 14 when the voltage of the DC bus 40 is lower than the first threshold voltage. A command value for lowering the duty ratio of 13 is generated. The inverter 13 performs a switching operation according to a drive signal based on the generated command value.
  • the temperature sensor T1 detects the temperature in the first power converter 10 and outputs it to the system control circuit 15.
  • a thermistor, a thermocouple, or the like can be used as the temperature sensor T1.
  • the power storage unit 3 can charge and discharge electric power, and includes a lithium ion storage battery, a nickel hydride storage battery, a lead storage battery, an electric double layer capacitor, a lithium ion capacitor, and the like.
  • the power storage unit 3 is connected to the second power conversion device 20.
  • the second power conversion device 20 includes a DC-DC converter 21 and a converter control circuit 22.
  • the converter control circuit 22 and the system control circuit 15 of the first power conversion device 10 are connected by a communication line 42, and communication based on a predetermined serial communication standard is performed between them.
  • the DC-DC converter 21 is a bidirectional converter that is connected between the power storage unit 3 and the DC bus 40 and charges and discharges the power storage unit 3.
  • the converter control circuit 22 controls the DC-DC converter 21.
  • the converter control circuit 22 controls the DC-DC converter 21 based on the command value transmitted from the system control circuit 15 to control the power storage unit 3 at a constant current (CC) / constant voltage (CV).
  • CC constant current
  • CV constant voltage
  • Charge / discharge For example, the converter control circuit 22 receives a power command value from the system control circuit 15 at the time of discharging, and uses a value obtained by dividing the power command value by the voltage of the power storage unit 3 as a current command value. Discharge.
  • the system control circuit 15 receives an instruction related to the output power amount and output timing to the grid 4 from a grid operating organization such as a power company via an external network (for example, the Internet or a dedicated line).
  • a grid operating organization such as a power company
  • an external network for example, the Internet or a dedicated line
  • the system control circuit 15 of the first power converter 10 is based on the measured value of a CT sensor (not shown) installed on the system 4 side of the distribution line 50 from the distribution board. Detect reverse power flow.
  • the converter control circuit 22 of the second power conversion device 20 receives reverse flow detection information from the system control circuit 15 via the communication line 42.
  • the communication line 42 is often installed over the DC bus 40 that connects the first power conversion device 10 and the second power conversion device 20, and in this configuration, the communication line 42 is affected by noise from the DC bus 40. .
  • the shorter the unit period representing one bit the weaker it becomes to noise. Basically, the bit error is more likely to occur as the communication speed is increased.
  • the first power conversion device 10 detects reverse power flow, generates communication data instructing output suppression, and transmits the communication data to the second power conversion device 20 via the communication line 42, it is defined in the grid interconnection regulations.
  • the time limit 500 ms
  • the content of communication data may change during the process due to noise.
  • the inverter control circuit 14 controls the inverter 13 so that the voltage of the DC bus 40 maintains the first threshold voltage as basic control.
  • the inverter control circuit 14 executes output suppression control as priority control. Specifically, the inverter control circuit 14 controls the inverter 13 so that the output of the inverter 13 does not exceed the command value (specifically, the upper limit current value or the upper limit power value) generated by the command value generation unit 15b.
  • the bus voltage stabilization control for controlling the voltage of the DC bus 40 to be maintained at the first threshold voltage is stopped.
  • the converter control circuit 22 receives, as basic control, the amount of discharge from the power storage unit 3 to the DC-DC converter 21 or the amount of charge from the DC-DC converter 21 to the power storage unit 3 transmitted from the system control circuit 15.
  • the DC-DC converter 21 is controlled so that the command value comes.
  • the converter control circuit 22 controls the DC-DC converter 21 as priority control so that the voltage of the DC bus 40 does not exceed the second threshold voltage. This control has priority over the control for adjusting the output to the command value transmitted from the system control circuit 15.
  • the second threshold voltage is set to a value higher than the first threshold voltage.
  • the converter control circuit 12 performs MPPT control on the DC-DC converter 11 so that the output power of the solar cell 2 is maximized as basic control. Further, the converter control circuit 12 controls the DC-DC converter 11 as priority control so that the voltage of the DC bus 40 does not exceed the third threshold voltage. This control has priority over MPPT control.
  • the third threshold voltage is set to a value higher than the second threshold voltage.
  • the first threshold voltage is set to a steady voltage of the DC bus 40.
  • the first threshold voltage is set in the range of DC 280 V to 360 V, for example.
  • the second threshold voltage is set to 390V
  • the third threshold voltage is set to 410V, for example.
  • FIG. 2 (a) and 2 (b) are diagrams schematically illustrating the voltage state of the DC bus 40.
  • FIG. FIG. 2A shows the voltage state of the DC bus 40 in a steady state. The constant voltage of the DC bus 40 is maintained at the first threshold voltage by the inverter 13.
  • FIG. 2B shows the voltage state of the DC bus 40 when the output of the inverter 13 is suppressed. Normally, the voltage of the DC bus 40 during output suppression is maintained at the second threshold voltage by the DC-DC converter 21 of the power storage unit 3.
  • the second power conversion device 20 When it is desired to suppress the initial investment in the power conversion system 1 shown in FIG. 1, the second power conversion device 20 is not connected and is operated in the state of the first power conversion device 10 alone (that is, the state of the photovoltaic power generation system). May start. Moreover, the 2nd power converter device 20 may be desired to be removed from the state of the power conversion system 1 shown in FIG. For example, when the power storage unit 3 is hardly used, the deterioration of the power storage unit 3 can be suppressed by removing the second power conversion device 20 from the DC bus 40.
  • FIG. 3A and 3B are diagrams illustrating an example of an output suppression reason when the second power conversion device 20 is in a disconnected state and an output suppression reason when the second power conversion device 20 is in a connected state. is there.
  • Fig.3 (a) when the 2nd power converter device 20 is a non-connection state, five types of output suppression reasons are prescribed
  • ⁇ Rated current excess is a restraining reason that occurs when the inverter 13 outputs a current exceeding the rated current of the inverter 13. For example, when the rated output current of the inverter 13 is 27.5A, the suppression reason occurs when the inverter 13 outputs a current exceeding 27.5A.
  • the rated power excess is a suppression reason that occurs when the inverter 13 outputs power exceeding the rated power of the inverter 13. For example, when the rated output power of the inverter 13 is 5.5 kW, when the inverter 13 outputs power exceeding 5.5 kW, the suppression reason occurs.
  • the rise in output voltage is a restraining reason that occurs when the output voltage of the inverter 13 exceeds a predetermined value.
  • the predetermined value is set to a value of 202 V or more in the case of three phases, and is set to a value of 107 V or more in the case of a single phase.
  • the remote output instruction is a control reason that occurs when it is received from a grid operating organization such as an electric power company via an external network. For example, an instruction such as “Please reduce the output power to OO kW from XX minutes to XX minutes in X minutes” is transmitted.
  • the high temperature abnormality is a suppression reason that occurs when the temperature in the first power conversion device 10 exceeds a predetermined value.
  • the predetermined value is set to 95 degrees.
  • the main heat source in the first power converter 10 is an inverter 13.
  • the output suppression control unit 15a of the first power converter 10 changes the output suppression amount of the inverter 13 according to the type of the output suppression reason. Specifically, the output suppression control unit 15a refers to the table shown in FIG. 3A to determine a limit value and a response time according to the type of output suppression reason.
  • the command value generation unit 15b generates a current command value / power command value for the inverter 13 according to the limit value and the response time determined by the output suppression control unit 15a.
  • the rated current excess and rated power excess are defined as the first priority
  • the output voltage rise is the second priority
  • the remote output instruction is the third priority
  • the high temperature abnormality is the fourth priority.
  • Higher priority output suppression reasons are more urgent and require faster responses.
  • the remote output instruction depends on the system operation period instruction, but is usually slower than the response when the output voltage rises. High temperature abnormalities are suppressed over a period of several minutes.
  • the limit value of the output current / output power of the inverter 13 changes due to multiple types of output suppression reasons.
  • the limit value of the output current of the inverter 13 becomes the rated current value.
  • a current value obtained by subtracting a margin from the rated current value may be used.
  • the limit value of the output power of the inverter 13 becomes the rated power value.
  • a power value obtained by subtracting a margin from the rated power value may be used.
  • the output current / output power of the inverter 13 is decreased at a prescribed response speed until the output voltage decreases to a target value (for example, 202V for three-phase, 107V for single-phase).
  • a target value for example, 202V for three-phase, 107V for single-phase.
  • the limit value of the output current / output power of the inverter 13 is a value specified by the grid operating engine.
  • the output current / output power of the inverter 13 is decreased at a prescribed response speed until the temperature in the first power converter 10 decreases to a target value (for example, 80 degrees).
  • the output suppression control unit 15a refers to the table shown in FIG. 3B and determines a limit value and a response time according to the type of the output suppression reason.
  • the reverse flow to the grid 4 is the first priority
  • the rated current excess is the second priority
  • the output voltage rise is the third priority
  • the remote output instruction is the priority 4th place
  • high temperature abnormality is defined as 5th priority.
  • the output current / output power limit value of the inverter 13 is a value at which the output power to the system 4 is 0 W or less, and the response time is less than 500 ms. This response time is the shortest response time among the response times of the output suppression reasons shown in FIG.
  • the output suppression control unit 15a outputs the output of the inverter 13 with the suppression amount and the response time for the highest priority output suppression reason when two or more types of output suppression reasons occur simultaneously among the multiple types of output suppression reasons. Suppress.
  • FIG. 4 is a diagram illustrating an example of the output of the inverter 13 when a plurality of types of output suppression reasons occur simultaneously.
  • the dotted line command value indicates the transition of the command value when the high temperature abnormality occurs
  • the solid line command value indicates the transition of the command value when the reverse power flow occurs.
  • the output suppression control unit 15a selects a lower command value at each time point.
  • the actual output power of the inverter 13 is the output power based on the command value at the time of occurrence of the high temperature abnormality from the occurrence of the high temperature abnormality to the occurrence of the reverse power flow, and becomes the output power based on the command value at the time of reverse power flow occurrence after the reverse power flow occurs.
  • the output suppression control is performed according to the system configuration by adding or eliminating the reverse power flow to the grid 4 for the output suppression reason. Can be optimized.
  • the inverter control circuit 14 and the system control circuit 15 are depicted separately, but each may be realized by a separate microcomputer or may be realized by a single microcomputer.
  • the example in which the first power conversion device 10 and the second power conversion device 20 are installed in different cases has been described.
  • a configuration example in which the system control circuit 15 and the converter control circuit 22 are connected by the communication line 42 while the first power conversion device 10 and the second power conversion device 20 are installed in one housing is also an example of the present invention. It is included in the embodiment.
  • the solar cell 2 is connected to the first power conversion device 10 .
  • another power generation device using renewable energy such as a wind power generation device or a micro hydraulic power generation device, may be connected.
  • a first DC-DC converter (11) for converting the voltage of the DC power output from the power generator (2) that generates power based on renewable energy, and outputting the converted DC power to the DC bus (40); Connected to the first DC-DC converter (11) via the DC bus (40), converts the DC power of the DC bus (40) into AC power, and converts the converted AC power into a load (5) or a power system
  • a control circuit (14, 15) for controlling the inverter (13), The said control circuit (14,15) changes the amount of suppression of the output of the said inverter (13) according to the classification of the output suppression reason of this power converter device (10),
  • the power converter device (10) characterized by the above-mentioned.
  • the control circuit (14, 15) suppresses an output suppression reason with the highest priority when two or more types of output suppression reasons occur among a plurality of types of output suppression reasons of the power conversion device (10).
  • a second DC-DC converter (21) for controlling input / output of the power storage unit (3) is connectable to the DC bus (40); In the state where the second DC-DC converter (21) is connected to the DC bus (40), the reverse flow to the power system (4) is included with the highest priority in the multiple types of output suppression reasons. When the second DC-DC converter (21) is not connected to the DC bus (40), the plurality of types of output suppression reasons do not include reverse power flow to the power system (4).
  • the power conversion device (10) according to item 1 or 2 According to this, an output suppression reason can be optimized according to whether or not the second DC-DC converter (21) is connected to the DC bus (40).
  • the control circuit (14, 15) suppresses the output of the inverter (13) at the fastest response speed among the plurality of types of output suppression reasons when a reverse power flow to the system 4 occurs.
  • Item 4. The power conversion device (10) according to item 3. According to this, the grid connection regulations can be satisfied.
  • the multiple types of output suppression reasons include an increase exceeding the rated power of the inverter output power, an increase exceeding the rated current of the inverter output current, an increase exceeding the predetermined value of the inverter output voltage, reception of a remote output command, and An increase exceeding a predetermined value of the temperature in the power converter (10) is included, and among these, an increase exceeding the rated power of the inverter output power and an increase exceeding the rated current of the inverter output current are priorities.
  • the power converter device (10) according to any one of items 1 to 4, characterized in that: According to this, suppression control according to the priority of each output suppression reason is attained, and the responsiveness with respect to each output suppression reason can be ensured.
  • a power conversion system (1) comprising a first power conversion device (10) and a second power conversion device (20),
  • the first power converter (10) A first DC-DC converter (11) for converting the voltage of the DC power output from the power generator (2) that generates power based on renewable energy, and outputting the converted DC power to the DC bus (40);
  • Connected to the first DC-DC converter (11) via the DC bus (40) converts the DC power of the DC bus (40) into AC power, and converts the converted AC power into a load (5) or a power system
  • a first control circuit (14, 15) for controlling the inverter (13),
  • the second power converter (20) A second DC-DC converter (21) for controlling input / output of the power storage unit (3);
  • the first control circuit (14, 15) changes an output suppression amount of the inverter (13) according to a type of an output suppression reason of the first power converter (10
  • the present invention can be used for a distributed power supply system in which a solar battery and a stationary storage battery are combined.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Dans la présente invention, un convertisseur CC-CC 11 convertit la tension de sortie de puissance CC provenant d'un dispositif de génération d'énergie qui génère de l'énergie sur la base d'une énergie renouvelable, et le convertisseur CC-CC fournit la puissance CC convertie à un bus CC 40. Un onduleur 13 est connecté au convertisseur CC-CC 11 par l'intermédiaire du bus CC 40, convertit la puissance CC du bus CC 40 en une puissance CA, et fournit la puissance CA convertie à une charge 5 ou à un système d'alimentation 4. Des circuits de commande 14, 15 modifient la quantité de suppression de la sortie de l'onduleur 13 en fonction du type de la raison de suppression de sortie effectuée dans ce dispositif de conversion de puissance 10.
PCT/JP2018/001806 2017-03-30 2018-01-22 Dispositif de conversion de puissance, système de conversion de puissance WO2018179716A1 (fr)

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JP2017-068997 2017-03-30
JP2017068997A JP6857828B2 (ja) 2017-03-30 2017-03-30 電力変換装置

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JP7261078B2 (ja) * 2019-04-25 2023-04-19 東京瓦斯株式会社 分散型電源システム
JP2025012668A (ja) * 2023-07-14 2025-01-24 株式会社日立製作所 電力変換装置

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JP2002165357A (ja) * 2000-11-27 2002-06-07 Canon Inc 電力変換装置およびその制御方法、および発電システム
JP2003284355A (ja) * 2002-03-25 2003-10-03 Matsushita Electric Works Ltd 太陽光発電システム
JP2013051833A (ja) * 2011-08-31 2013-03-14 Nichicon Corp マルチパワーコンディショナシステム
JP2016082718A (ja) * 2014-10-16 2016-05-16 三菱電機株式会社 分散型電源装置および分散型電源装置の出力抑制表示方法

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JP4837632B2 (ja) * 2007-07-24 2011-12-14 フジプレアム株式会社 電力貯蔵型太陽光発電システム
JP4795312B2 (ja) * 2007-07-24 2011-10-19 フジプレアム株式会社 電力貯蔵型太陽光発電システム
JP6480212B2 (ja) * 2015-02-25 2019-03-06 京セラ株式会社 電力変換装置、電力管理システム及び電力変換方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002165357A (ja) * 2000-11-27 2002-06-07 Canon Inc 電力変換装置およびその制御方法、および発電システム
JP2003284355A (ja) * 2002-03-25 2003-10-03 Matsushita Electric Works Ltd 太陽光発電システム
JP2013051833A (ja) * 2011-08-31 2013-03-14 Nichicon Corp マルチパワーコンディショナシステム
JP2016082718A (ja) * 2014-10-16 2016-05-16 三菱電機株式会社 分散型電源装置および分散型電源装置の出力抑制表示方法

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