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WO2011057849A1 - Système de transmission d'énergie pour un système d'accumulation d'énergie - Google Patents

Système de transmission d'énergie pour un système d'accumulation d'énergie Download PDF

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Publication number
WO2011057849A1
WO2011057849A1 PCT/EP2010/064004 EP2010064004W WO2011057849A1 WO 2011057849 A1 WO2011057849 A1 WO 2011057849A1 EP 2010064004 W EP2010064004 W EP 2010064004W WO 2011057849 A1 WO2011057849 A1 WO 2011057849A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
output
converter
energy
transfer system
Prior art date
Application number
PCT/EP2010/064004
Other languages
German (de)
English (en)
Inventor
Stefan Butzmann
Holger Fink
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2011057849A1 publication Critical patent/WO2011057849A1/fr

Links

Classifications

    • 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
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks
    • H02J1/10—Parallel operation of DC sources
    • H02J1/102—Parallel operation of DC sources being switching converters
    • 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
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks
    • H02J1/08—Three-wire systems; Systems having more than three wires

Definitions

  • the invention relates to an energy transfer system for an energy storage system, in particular a battery system, with a plurality of DC converter modules.
  • the invention further relates to an energy storage system with a corresponding energy transfer system and a motor vehicle having such an energy storage system.
  • An energy transfer system for an energy storage system is z. B. from wind turbines, emergency power systems, but also known from vehicles with electric or hybrid drive.
  • the energy storage modules are designed as battery modules with rechargeable battery cells.
  • a so-called battery management system which is connected to both poles of each of the battery cells and at regular or selectable intervals operating parameters such as voltage and temperature of each of the cells and the resulting state of charge (SoC : State of charge and / or SoH: State of Health).
  • the inventive energy transfer system offers the advantage that on the input side a large number of energy storage modules with each freely selectable for feeding electrical energy
  • the energy transfer system has a plurality of DC converter modules (DC / DC converter modules) each having a DC controller (DC / DC converter) and / or an output-side series circuit of a plurality "
  • each of the DC controllers has a first and a second input for connecting an energy storage module and the DC-controller modules are connected in parallel on the output side.
  • the output side parallel circuit of the DC actuator modules takes place by electrically conductive connection of the first module outputs with each other and the second module outputs with each other.
  • the (total) voltage of each of the energy storage modules is preferably in the range 0.1 V ⁇ X ⁇ 120 V, particularly preferably in the range 0.2 V ⁇ X ⁇ 50 V.
  • an electrical energy storage in the context of the present invention 35 is an energy storage to understand the either electrical energy can be removed or fed and removed.
  • the electrical energy store is used as charge storage and / or as magnetic energy. formed gie Grande and / or electrochemical energy storage.
  • An electrochemical energy store is in particular a rechargeable battery or an accumulator.
  • a DC chopper is to be understood in particular as a bidirectional DC chopper (DC / DC converter).
  • At least one of the DC choppers has a first and a second coil, which are coupled together to form a power transformer and / or storage transformer.
  • This variant of the DC-DC converter allows galvanic decoupling of the outputs of the DC-DC converter from their inputs, so that a series connection of the outputs of the DC-DC converter with a subsequent parallel connection of the outputs of DC-DC converter modules is easily combined.
  • the DC-DC converter can be designed as a fly-back converter, as a forward converter, push-pull converter, half-bridge converter and full-bridge converter, and as a resonant converter.
  • the aforementioned converters are known
  • the first inputs or the second inputs of each of a DC-DC converter of each of the DC actuator modules are connected to ground.
  • the first inputs or the second inputs of each DC chopper of each of the DC chiller modules are connected to ground.
  • At least one of the DC choppers has a freewheeling diode, wherein in each case one anode of the freewheeling diode is electrically connected to a second output of the DC adjuster and a cathode of the freewheeling diode is electrically connected to a first output of the DC adjuster.
  • each of the DC controllers has a freewheeling diode.
  • At least one of the DC controllers has a first control input for a first control signal and is configured to -.
  • each of the DC controllers has a first control input for a first control signal and is designed to receive the first output of the first control signal
  • DC actuator to be electrically connected to the second output of the DC adjuster.
  • At least one of the DC controllers has a second control input for a second control signal and is designed to increase a voltage between the first and the second output of the DC adjuster upon receipt of the second control signal. It is preferably provided that each of the DC controllers has such a control input. Thus, it is possible to counteract a decrease in the total voltage of a converter module by the already described failure or the shutdown of a single DC adjuster, so that further provided at least approximately unchanged total voltage of the reduced number of DC-controllers within the DC adjuster module.
  • the invention further relates to an energy storage system with an aforementioned energy transfer system. It is provided that the energy storage system comprises a plurality of energy storage modules each having a memory cell and a first and a second pole, wherein the poles with corresponding first and second inputs of the DC chopper of
  • Energy transfer system are electrically connected. This compound is preferably a releasable connection.
  • the memory cells of the energy storage modules are preferably battery cells of battery modules, the poles corresponding to battery poles.
  • the invention further relates to a motor vehicle with an energy storage system mentioned above.
  • the energy storage system is designed as an energy storage system for supplying an electric drive system of the motor vehicle.
  • the drive system has at least one electrical machine designed as an electric motor and / or generator.
  • FIG. 1 is a circuit diagram of a first embodiment of an energy storage system with energy transfer system
  • FIG. 2 shows a circuit diagram of a second exemplary embodiment of an energy storage system with energy transfer system
  • FIG. and FIG. 3 is a circuit diagram of a DC-DC regulator with a storage transformer.
  • FIG. 1 shows a circuit diagram of a battery system designed as an energy storage system 10 having a plurality of rechargeable battery modules designed as electrical energy storage modules.
  • An electrical energy store in the sense of the present invention is to be understood as meaning an energy store to which electrical energy can be taken or can be supplied and removed.
  • the electrical energy storage is designed as a charge storage and / or as a magnetic energy storage and / or electrochemical energy storage. Modular units of the energy storage are the electrical energy storage modules.
  • Fig. 1 only three of a plurality of energy storage modules 12, 14, 16, each with a memory cell 18 are shown. In real applications, the number of energy storage modules or battery modules can be significantly higher.
  • Energy storage system 10 further includes an energy transfer system 20, which in turn comprises a plurality of DC-DC converter modules 22, 24, 26, wherein each of the DC actuator modules 22, 24, 26 each have a DC / DC converter 28, 30, 32.
  • Each of the DC controllers 22, 24, 26 has a first input 34 and a second input 36.
  • Each of the first inputs 34 having an associated first battery pole 38 of a DC storage device 28, 30, 32 associated energy storage module 12, 14, 16 and each second input 36 of the DC choppers 28, 30, 32 with a second pole 40 of an associated energy storage module of the energy storage modules 12th , 14, 16 releasably electrically connected.
  • Each of the DC controllers 28, 30, 32 has a first output 42 and a second output 44.
  • each of the DC actuator modules 22, 24, 26 each have a DC controller 28, 30, 32
  • the respective first output corresponds to a first module output 46 and the respective second output 44 to a second module output 48 of the respective DC actuator module 22, 24, 26.
  • Die Gleichstellstellermodule 22 , 24, 26 are connected in parallel to one another on the output side by short-circuiting the respective first module outputs 46 with each other and the second module outputs 48.
  • a consumer (not shown), in particular an electrical machine, can be connected. in the
  • each of the actuator modules 22, 24, 26 exactly one DC-DC converter 28, 30, 32 and each of the energy storage modules 12, 14, 16 is connected to one of its poles 38, 40 connected to ground.
  • FIG. 2 shows a circuit diagram of a second exemplary embodiment of the energy storage system 10 with energy transfer system 20.
  • the energy storage system 10 shown in FIG. 2 substantially corresponds to the energy storage system 10 of FIG. 1, so that only the differences are discussed here.
  • the power transmission system 20 of FIG. 2 includes two DC chopper modules 22, 24, each DC chopper module 22, 24 each having three DC choppers 28, 30, 32; 50, 52, 54.
  • the three DC choppers 28, 30, 32 of the first DC chopper module 22 are connected on the output side, that is via their outputs 42, 44, connected in series and the input side each with an associated energy storage module 12, 14, 16 electrically connected.
  • the second DC-DC converter module 24 likewise has three DC-DC converters 50, 52, 54, which are connected in series on the output side and are each electrically connected on the input side to an associated energy storage module 56, 58, 60.
  • the first module outputs 46 and the second module outputs 48 are electrically connected to each other and to a first output contact (-), respectively.
  • the second module outputs 48 are electrically connected to each other and to a second output contact (+).
  • Such an arrangement has the advantage that the primary side a plurality of energy storage modules 12, 14, 16; 56, 58, 60 can be connected in parallel, wherein each of the DC-DC converter 28, 30, 32, 50, 52, 54 each present a significantly lower clamping voltage than in a series connection of all these energy storage modules 12, 14, 16, 56, 58th , 60 on a single n
  • the output voltage is thus independent of the number of primary side connected memory cells 18. This allows the design of the energy storage system 10 purely on energy and performance criteria, regardless of the required for the particular application total voltage.
  • the DC controllers 28, 30, 32, 50, 52, 54 are preferably as fly-back converter, forward converter, push-pull converter, half-bridge converter, full-bridge converter.
  • Converter and / or designed as a resonant converter.
  • FIG. 3 shows a circuit diagram of a DC adjuster with a memory transformer 62.
  • a DC voltage source 64 which in the case of the invention corresponds to an energy storage module 12, 14, 16, 56, 58, 60, is connected via a switch
  • the DC-DC converter has a between the first output 42 and the second output 44 connected in the reverse direction freewheeling diode 76 and a freewheeling diode 76 connected in parallel switch 78.
  • the switch 78 is a switch operable by a control signal, such as a transistor 78 switch.
  • the DC chopper thus has a first control input for a first control signal (not shown) and is configured to be the first one upon receiving the first control signal Output 42 of the DC adjuster 28, 30, 32; 50, 52, 54 to the second output 44 of the DC adjuster 28, 30, 32; 50, 52, 54 electrically connect.
  • Known DC regulators have a controller that adjusts the timing of the switch 66 to the operating situation. It is also customary to provide a feedback in which the output voltage applied to the outputs 42, 44 is determined and used to adapt the timing of the switch 66, so that the output voltage is as stable as possible. In the context of the invention, these properties of DC actuators allow the setting of a desired total voltage of the energy storage system 10, depending on the operating situation, or the switching off of one or all of the DC choppers 28, 30, 32, 50, 52, 54.
  • An important advantage of the embodiment of the DC adjuster shown in Fig. 3 is the galvanic decoupling of the input voltage of the DC voltage source 64 (or the energy storage module 12, 14, 16, 56, 58, 60) from the output voltage at the outputs 42, 44, which are the Enable series connection of the outputs of the DC controllers.
  • Other known DC regulators which offer this advantage are also suitable for implementing the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un système de transmission d'énergie (20) pour un système d'accumulation d'énergie (10), en particulier un système d'accumulateurs, avec une pluralité de modules convertisseurs de tension continue (22 ; 24 ; 26) qui possèdent chacun un convertisseur de tension continue (22, 24, 26) et/ou un circuit série de sortie de plusieurs convertisseurs de tension continue (22, 24, 26 ; 50, 52, 54) avec chacun une première et une deuxième sortie de module (46, 48). Chacun des convertisseurs de tension continue (22, 24, 26 ; 50, 52, 54) possède une première et une deuxième entrée (34, 36) pour le raccordement d'un module accumulateur d'énergie (12, 14, 16) du système d'accumulation d'énergie (10) et les modules convertisseurs de tension continue (22 ; 24 ; 26) sont montés en parallèle du côté de la sortie. L'invention concerne en outre un système d'accumulation d'énergie avec un système correspondant de transmission d'énergie, ainsi qu'un véhicule automobile avec un système d'accumulation d'énergie.
PCT/EP2010/064004 2009-11-11 2010-09-23 Système de transmission d'énergie pour un système d'accumulation d'énergie WO2011057849A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009046605.3 2009-11-11
DE200910046605 DE102009046605A1 (de) 2009-11-11 2009-11-11 Energieübertragersystem für ein Energiespeichersystem

Publications (1)

Publication Number Publication Date
WO2011057849A1 true WO2011057849A1 (fr) 2011-05-19

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DE (1) DE102009046605A1 (fr)
WO (1) WO2011057849A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113765163A (zh) * 2020-06-01 2021-12-07 蓝谷智慧(北京)能源科技有限公司 一种整包梯次电池储能充电系统的控制方法、装置及系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9136705B2 (en) 2011-06-17 2015-09-15 GM Global Technology Operations LLC Scalable method of proportional active state of charge balancing for managing variations in the state of health of batteries
DE102014200336A1 (de) * 2014-01-10 2015-07-16 Robert Bosch Gmbh Elektrochemischer Speicherverbund
US9780591B2 (en) * 2015-04-03 2017-10-03 Schneider Electric It Corporation Adaptive battery pack
DE102017200232A1 (de) * 2017-01-10 2018-07-12 Audi Ag Energiekoppler für ein elektrisch antreibbares Kraftfahrzeug
DE102021214617B4 (de) 2021-12-17 2023-09-07 Vitesco Technologies GmbH Verfahren und Vorrichtung zum Betreiben einer Batterieeinheit eines Elektrofahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1531542A2 (fr) * 2003-11-13 2005-05-18 Sharp Kabushiki Kaisha Dispositif d'invertisseur connecté à plusieurs des sources de courant continu de puissance et système de sources de puissance distribué avec un dispositif d'invertisseur lié à un réseau de puissance commercial pour opérer
EP2001114A1 (fr) * 2007-06-06 2008-12-10 Sükrü Ertike Convertisseur direct à sorties multiples doté d'une régulation indépendante et précise
US20090206666A1 (en) * 2007-12-04 2009-08-20 Guy Sella Distributed power harvesting systems using dc power sources

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1531542A2 (fr) * 2003-11-13 2005-05-18 Sharp Kabushiki Kaisha Dispositif d'invertisseur connecté à plusieurs des sources de courant continu de puissance et système de sources de puissance distribué avec un dispositif d'invertisseur lié à un réseau de puissance commercial pour opérer
EP2001114A1 (fr) * 2007-06-06 2008-12-10 Sükrü Ertike Convertisseur direct à sorties multiples doté d'une régulation indépendante et précise
US20090206666A1 (en) * 2007-12-04 2009-08-20 Guy Sella Distributed power harvesting systems using dc power sources

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113765163A (zh) * 2020-06-01 2021-12-07 蓝谷智慧(北京)能源科技有限公司 一种整包梯次电池储能充电系统的控制方法、装置及系统

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