WO2009000817A2 - Dispositif de stockage d'énergie et procédé d'exploitation correspondant - Google Patents

Dispositif de stockage d'énergie et procédé d'exploitation correspondant Download PDF

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Publication number
WO2009000817A2
WO2009000817A2 PCT/EP2008/057982 EP2008057982W WO2009000817A2 WO 2009000817 A2 WO2009000817 A2 WO 2009000817A2 EP 2008057982 W EP2008057982 W EP 2008057982W WO 2009000817 A2 WO2009000817 A2 WO 2009000817A2
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
module
control device
central
charge
Prior art date
Application number
PCT/EP2008/057982
Other languages
German (de)
English (en)
Other versions
WO2009000817A3 (fr
Inventor
Andreas Fuchs
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2009000817A2 publication Critical patent/WO2009000817A2/fr
Publication of WO2009000817A3 publication Critical patent/WO2009000817A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • 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
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the invention relates to an energy storage device, in particular for a traction unit of a vehicle (for example rail vehicle, bus, passenger car, etc.) or for trackside devices (for example a railway or magnetic railway track) for storing electrical energy, in particular drive energy for a vehicle traction unit.
  • a traction unit of a vehicle for example rail vehicle, bus, passenger car, etc.
  • trackside devices for example a railway or magnetic railway track
  • the invention is accordingly an object of the invention to provide an energy storage device that allows safe and reliable storage operation and at the same time with relatively little effort and thus low cost can be produced.
  • the invention provides that the energy storage device has at least two energy storage modules, which are connected via a radio link to a central energy storage control device of the energy storage device and which can be controlled via the radio link from the central energy storage control device.
  • a significant advantage of the energy storage device according to the invention is the fact that this is a very high Level of reliability achieved because in fact the individual energy storage modules can be monitored and controlled via the radio-connected central energy storage control device.
  • the term "taxation” or just “tax” in the following means any kind of "tax” or “rule”.
  • Another significant advantage of the energy storage device according to the invention is that no wiring between individual energy storage modules and the central energy storage control device is required, since these components are connected to each other via radio.
  • the production costs are considerably reduced because assembly costs are eliminated and the radio components used as replacement are already available at very low cost.
  • otherwise required potential separation points for example in the form of optocouplers
  • the energy storage modules are electrically connected in series.
  • the energy storage device In order to avoid that the energy storage device requires a radio regulatory approval and / or can disturb other components, it is considered advantageous if the energy storage device is arranged within an electromagnetically outwardly insulated container or housing.
  • an energy storage module is also considered, which can be used for the energy storage device described above and is equipped with at least one storage element for storing electrical energy.
  • an energy storage module that it comprises a control device. has, which is connectable via a radio link with a central energy storage control device connectable from this.
  • the control device comprises a module-side control unit, which can transmit the operating state of the at least one memory element directly or indirectly indicating measuring signals to the central energy storage control device.
  • the operating state can be determined, for example, on the basis of the state of charge, which is ascertained in particular based on the electrical output voltage of the energy storage module or the output voltages of the storage element, and / or the temperature and / or the electrolyte composition of an electrolyte of the energy storage module and / or an internal pressure of the energy storage module, etc ., be determined.
  • the control device has a module-side radio device, which is connected to the module-side control unit and is suitable for transmitting the measurement signals of the module-side control unit or measurement data derived therefrom to a central radio device of the central energy storage control device.
  • the module-side radio device can also be integrated in the module-side control unit and form part of it.
  • the control device comprises a module-side discharge device connected to the module-side control unit, which can individually reduce the charge state of the storage elements of the energy storage module.
  • a module-side discharge device connected to the module-side control unit, which can individually reduce the charge state of the storage elements of the energy storage module.
  • Such an unloading device can be achieved that reduces the state of charge of the energy storage module in a timely manner can be when a critical operating condition, such as an excessive output voltage or too high a temperature occurs.
  • Such an unloading device may comprise, for example, a discharge resistor (or series resistor) and a switch which is actuated by the module-side control unit, ie opened (normal operation) or closed (discharge operation).
  • the module-side control unit can, for example, form a threshold value monitoring device which is electrically connected directly or indirectly to the at least one storage element and monitor its charge state and / or temperature for exceeding a predetermined threshold value and, in the event of an excess, a corresponding threshold value signal for the central energy storage control device can generate.
  • a threshold value monitoring device which is electrically connected directly or indirectly to the at least one storage element and monitor its charge state and / or temperature for exceeding a predetermined threshold value and, in the event of an excess, a corresponding threshold value signal for the central energy storage control device can generate.
  • the energy storage module can be achieved, for example, that the central energy storage controller is only busy with control tasks when actually lent an unwanted or dangerous operating state has occurred, and that otherwise the central energy storage controller remains inactive.
  • the module-side control unit can also transmit all of its measured values to the central energy storage control device for the purpose of evaluation and activation and additionally transmit the threshold value signals, for example, in order to mark a "fault state" in particular.
  • the control device comprises an A / D converter device which is connected directly or indirectly to the at least one memory element on the input side and whose output voltage converts analog-digitally and on the output side with the module-side control unit of the energy storage module in Ver - bond is.
  • the transmission of the measurement signals and / or a threshold signal can be carried out in a digital manner, so that modern digital transmission methods can be used.
  • the energy storage module comprises two or more storage elements, in particular in the form of double-layer capacitors, lithium-ion batteries or NiMH batteries, which are connected electrically in series or in parallel. By such an interconnection can be achieved that each energy storage module can reach predetermined output voltages and storage capacities.
  • the invention also relates to a method for
  • the energy storage modules measure their charge state and / or their temperature and transmit corresponding measurement signals or measurement data derived therefrom to a central energy storage control device via a radio link.
  • the central energy storage control device evaluates the measurement signals or the measurement data of the energy storage modules and generates depending on the operating state of the individual energy storage modules each have a module-specific central control signal to transmit this to the respective energy storage module to its activation via a radio link.
  • the central energy storage control device will preferably evaluate the measurement signals or the measurement data of the energy storage modules as to whether or not the energy storage modules are uniformly charged, and in the case of an uneven charge state, control the energy storage modules in such a way that a part of the energy storage modules reduced deschreib and thereby a more uniform state of charge of the energy storage modules is achieved.
  • the energy storage modules measure the charge status of their individual storage elements and corresponding element-specific measurement signals or element-specific measurement data derived therefrom are transmitted to the central energy storage control device via the radio link.
  • the central energy storage control device evaluates the element-specific measurement signals or the element-specific measurement data of the memory elements and generates a respective element-specific control signal depending on the operating state of the individual memory elements and this to the respective energy storage module for its activation via the radio link transfers.
  • the central energy storage control device preferably evaluates the measurement signals or the measurement data of the memory elements as to whether they are uniformly charged or not, and controls the memory elements in the event of a non-uniform state of charge such that a portion of the memory elements reduces its charge state and reaches a more uniform state of charge of the memory elements becomes.
  • the invention also relates to a traction unit for a vehicle, for example a rail vehicle, with an energy storage device, as described above, and to a corresponding vehicle, such as a rail vehicle, as such.
  • FIG. 1 shows a first exemplary embodiment of an energy storage device according to the invention, by means of which the method according to the invention and the energy storage module according to the invention are explained
  • FIG. 2 an exemplary embodiment of a module-side discharging device for the energy storage modules shown in FIG.
  • FIG. 3 shows a second exemplary embodiment of an energy storage device according to the invention, in which, instead of element-specific measurement signals, module-specific measurement signals are transmitted,
  • FIG. 4 shows a third exemplary embodiment of an energy storage device according to the invention, in which, in addition to the state of charge of the energy storage modules, the temperature as well as further information about the operating state of the energy storage modules are measured and transmitted,
  • FIG. 5 shows a fourth exemplary embodiment of an energy storage device according to the invention, in which the module-side control units evaluate measurement signals present on the input side and monitor them for exceeding predetermined threshold values, and
  • FIG. 6 shows a time segment of a possible measurement data transmission between energy storage modules and a central energy storage control device
  • FIG. 1 shows an energy storage device 10 which is suitable for storing electrical energy.
  • a Electrical storage voltage applied to the energy storage device 10 is identified by the reference symbol U.
  • the energy storage device 10 has three energy storage modules 20, 30 and 40, of which only the energy storage module 20 is shown in more detail for the sake of clarity.
  • the two remaining energy storage modules 30 and 40 may be identical to the energy storage module 20, for example, or may alternatively be constructed similarly to the criteria outlined above.
  • FIG. 1 shows a central energy storage control device 50, which is equipped with a central radio device 60.
  • the individual energy storage modules 20, 30 and 40 are connected via a radio link 70 to the central energy storage control device 50 in connection.
  • FIG. 1 shows the internal structure of the energy storage module 20 by way of example.
  • the energy storage module 20 has three memory elements 100, 110 and 120, which may be, for example, double-layer capacitors, lithium-ion batteries or NiMH batteries.
  • the memory elements 100, 110 and 120 are electrically connected in series.
  • a module-side discharge device 130 Connected to the three storage elements 100, 110 and 120 is a module-side discharge device 130, the function of which will be explained in more detail below in connection with the description of the operating method of the energy storage device 10.
  • Downstream of the module-side discharge device 130 is an A / D converter device 140, which is connected on the output side to a module-side control unit 150.
  • Downstream of the module-side control unit 150 is a module-side radio device 160, which is suitable for establishing the radio connection 70 to the central radio device 60 of the central energy storage device 50.
  • the module-side discharger 130, the A / D converter device 140, the module-side control unit 150 and the radio 160 form a control device, which is identified by the reference numeral 170.
  • the energy storage device 10 according to FIG. 1 can be operated, for example, as follows:
  • the module-side control unit 150 acquires, by means of the A / D converter device 140, the element-specific storage voltages U (i) applied to the individual storage elements 100, 110 and 120.
  • the variable "i" indicates which storage element of the energy storage module 20 relates to the respective element-specific storage voltage.
  • the two other energy storage modules 30 and 40 operate in a corresponding manner, so that in the central energy storage control device 50 all element-specific voltages U (i) 'present at the individual storage elements of the respective energy storage modules are known.
  • the central energy storage control device 50 now compares whether the storage voltage U applied to the energy storage device 10 is evenly distributed to the storage elements. If it determines that an unequal distribution of voltage has occurred or if the total individual or all memory elements are exposed to excessive operating voltage, it generates element-specific control signals ST (i) and transmits them via the radio link 70 to the energy storage modules 20, 30 and 40.
  • the element-specific central control signals ST (i) are evaluated by the module-side control units 150 of the energy storage modules 20, 30 and 40 and used, if necessary, to modify their own mo- Dulmure discharge device 130 to activate to discharge individual or all memory elements of the respective energy storage module.
  • the module-side control unit 150 becomes the corresponding discharge element 220 of the discharge device Enable 130 via a control line or a control bus 240 so that the memory element 110 can be discharged.
  • discharging the memory element 110 can be achieved that all three memory elements 100, 110 and 120 of the energy storage module 20 are uniformly charged and none of the memory elements is overloaded.
  • the energy storage control device 50 will control the remaining energy storage modules 30 and 40 or their storage elements in order to ensure that their storage elements are also loaded correspondingly uniformly.
  • the central energy storage control device 50 will ensure that the energy storage modules 20, 30 and 40 are also charged uniformly overall; this will be achieved by evaluating the module voltage dropping across the individual energy storage modules and by activating the individual energy storage modules in such a way that each energy storage module carries at least approximately the same charging voltage.
  • FIG. 2 shows an exemplary embodiment of the modulator-type discharge device 130 according to FIG. 1 in detail. It can be seen the three discharge elements 210, 220 and 230, which are each connected in parallel to an associated memory element 100, 110 and 120. The three discharge elements each have a series resistor R and a switch unit 250, which is connected in series with the series resistor R.
  • the switch unit 250 is turned on, the corresponding memory element 100, 110 and 120 according to FIG. 1 are short-circuited via the assigned series resistor R, so that it is discharged. However, if the switch unit 250 remains open, the associated discharge element remains ineffective.
  • the switch units 250 of the discharge elements 210, 220 and 230 are connected via an individual control line or control bus 240 to the module-side control unit 150, so that each individual switch unit 250 and thus each individual discharge element can be switched on and off individually and thus each individual storage element 100 , 110 and 120 can discharge individually when or as soon as a critical operating condition has been reached.
  • FIG. 3 shows a second exemplary embodiment of an energy storage device 10.
  • the module-side control unit 150 only transmits a module-specific measurement signal M or module-specific measurement data derived therefrom to the central energy storage control device 50 so that the measurement signals or the measurement data are present only in a module-related manner.
  • the central energy storage control device 50 will now check whether all the energy storage modules 20, 30 or 40 are charged approximately uniformly and in the case of an uneven charge distribution via module-individual
  • Control signals ST which are transmitted via the radio link 70, ensure that all energy storage modules have approximately the same state of charge.
  • a uniform utilization of the memory elements 100, 110 and 120 of the energy storage modules takes place module-specifically by the respective module-side control unit 150: This means that each module-side control unit 150 itself ensures that the allocated storage elements are uniformly loaded , The task of the central energy storage control device 50 is accordingly limited to ensuring that the energy storage modules as such are at least approximately evenly loaded.
  • FIG. 4 shows a third exemplary embodiment of an energy storage device 10.
  • This exemplary embodiment differs from the first exemplary embodiment according to FIG. 1 in that the module-side control unit 150 is connected to additional measuring sensors 300 and 310 with which additional measuring signals can be recorded.
  • the measuring sensor 300 may be a temperature meter which measures the temperature of the energy storage module 20 and transmits a corresponding temperature measurement signal T to the module-side control unit 150.
  • the measuring sensor 310 may, for example, be a pressure sensor which measures the internal pressure within the energy storage module 20 and transmits a corresponding pressure measuring signal P to the module-side control unit 150.
  • the module-side control unit 150 thus evaluates not only the element-specific voltage values U (i) present on the input side but also the temperature T and the pressure P of the energy storage module 20 and corresponding ones
  • the central energy storage control device 50 Transmit measuring signals or measurement data derived therefrom via the radio link 70 to the central energy storage control device 50. If the central energy storage control device 50 determines on the basis of the received measurement signals or measurement data that individual or all of the energy storage modules have reached a critical operating state, it will attempt to relieve the affected energy storage modules, for example by discharging the corresponding storage elements, or Switch off energy storage device 10 completely.
  • FIG. 5 shows a fourth exemplary embodiment of an energy storage device 10 according to the invention.
  • the module-side control unit 150 is able to evaluate the measurement signals U (i) ', T and P present on the input side and to monitor them for exceeding predetermined threshold values. In this case, if the module-side control unit 150 determines that threshold values have been exceeded, it will generate corresponding threshold signals SWS for the central energy storage control device 50 and transmit them via the radio link 70 to warn the central energy storage control device 50 and take appropriate measures, such as switching off the energy storage device 10, can initiate.
  • FIG. 6 shows by way of example a time segment of a possible measurement data transmission between the energy storage modules 20, 30 and 40 as well as the central energy storage control device 50 via the radio link 70.
  • the central energy storage control device 50 commands via radio all the energy storage modules 20, 30 and 40 to measure the element-specific voltages at their storage elements. Subsequently, each energy storage module is individually commanded to transmit its measured measured values to the central energy storage control device 50. This ensures that in each case exactly one single module-side radio device transmits and all other module-side radio devices are inactive. In this way Energy storage module for energy storage module is queried. Subsequently, the central energy storage control device 50 evaluates the received measurement data and optionally commands the individual energy storage modules to symmetrize the element-specific voltages applied to their storage elements or, if limit values are exceeded, to switch off the energy storage device 10.
  • the described cycle is continuously repeated during the operation of the energy storage device 10.
  • the central energy storage controller 50 query those energy storage modules more frequently, in which a critical operating state has already been reached or announces. In this way it can be achieved that energy storage modules with a critical behavior are monitored more intensely or thoroughly than other energy storage modules which show an uncritical behavior. In this way it can be achieved that, by deliberately influencing the critical energy storage modules in a timely manner, a failure of the entire energy storage device 10 is avoided, at least delayed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne notamment un dispositif de stockage d'énergie (10) pour accumuler de l'énergie électrique. L'invention propose ainsi un dispositif de stockage d'énergie comprenant au moins deux modules de stockage d'énergie (20, 30, 40) reliés par liaison radio (70) à un dispositif central de commande de stockage d'énergie (50), et pouvant être commandés par le dispositif central de commande de stockage d'énergie (50) en passant par la liaison radio (70).
PCT/EP2008/057982 2007-06-28 2008-06-24 Dispositif de stockage d'énergie et procédé d'exploitation correspondant WO2009000817A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007029847A DE102007029847A1 (de) 2007-06-28 2007-06-28 Energiespeichereinrichtung und Verfahren zu deren Betrieb
DE102007029847.3 2007-06-28

Publications (2)

Publication Number Publication Date
WO2009000817A2 true WO2009000817A2 (fr) 2008-12-31
WO2009000817A3 WO2009000817A3 (fr) 2009-03-26

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DE102009000504B4 (de) 2009-01-30 2022-02-24 Robert Bosch Gmbh Batteriemodul
US20120068715A1 (en) * 2009-05-19 2012-03-22 Volvo Lastvagnar Ab Modular energy storage system for driving electric motor
DE102011087289A1 (de) * 2011-11-29 2013-01-10 Continental Automotive Gmbh Akkumulatorpack, Verfahren zum Herstellen eines Akkumulatorpacks und Verfahren zum Ladungsausgleich
DE102013008359A1 (de) * 2013-05-16 2014-11-20 Sew-Eurodrive Gmbh & Co Kg Energiespeicher, der aus in Reihe geschalten Energiespeicherzellen aufgebaut ist, und Schaltungsanordnung zur passiven Symmetrierung einer Reihenschaltung von Kondensatoren

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WO2004047215A1 (fr) * 2002-11-15 2004-06-03 Philips Intellectual Property & Standards Gmbh Systeme de gestion de batteries d'accumulateurs sans fil
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