WO2022122932A1 - Unité de commande, source d'énergie stockée et procédé de commande de la source d'énergie stockée - Google Patents

Unité de commande, source d'énergie stockée et procédé de commande de la source d'énergie stockée Download PDF

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Publication number
WO2022122932A1
WO2022122932A1 PCT/EP2021/085017 EP2021085017W WO2022122932A1 WO 2022122932 A1 WO2022122932 A1 WO 2022122932A1 EP 2021085017 W EP2021085017 W EP 2021085017W WO 2022122932 A1 WO2022122932 A1 WO 2022122932A1
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WO
WIPO (PCT)
Prior art keywords
energy storage
storage module
state
charge
switch
Prior art date
Application number
PCT/EP2021/085017
Other languages
German (de)
English (en)
Inventor
Bernhard Altmeier
Original Assignee
Rolls-Royce Solutions 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 Rolls-Royce Solutions GmbH filed Critical Rolls-Royce Solutions GmbH
Publication of WO2022122932A1 publication Critical patent/WO2022122932A1/fr

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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
    • 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
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • Y02E60/10—Energy storage using batteries

Definitions

  • Energy storage power plants in particular battery containers, are well known. Such energy storage power plants are used for energy storage and energy delivery. Accumulators are typically used as energy storage modules for energy storage. Energy storage power plants have, among other things, the task of cushioning peak loads in energy demand, voltage and reactive power control, frequency stabilization of the power grid and avoidance of additional grid expansion. Control units that control the energy storage and the energy distribution between the energy storage modules are known for this.
  • DE 102018 126 904 A1 discloses a method for equalizing charging voltages between energy stores in a series circuit of energy stores and a corresponding circuit arrangement.
  • electrical energy is transmitted by alternating switching of switches in pairs and with intermediate storage in each case in an inductance between energy storage devices in series, and electrical energy is transmitted capacitively between groups of the same number of energy storage devices by alternating switching of the switches.
  • the switches can be in the form of controllable semiconductor switches, for example be. However, no interconnection of the energy stores or a method for this is disclosed.
  • an energy storage power plant is to supply a load that has a high power requirement, it is desirable to interconnect several energy storage modules. If the energy storage modules have different states of charge, this leads to charge reversal processes when they are interconnected.
  • the object concerning the device is solved by a control unit according to claim 1.
  • the mechanical changeover switch is caused to switch to a switching state that is implemented in particular with a first switching position.
  • the invention is based on the consideration that charge reversal processes take place when two energy storage modules are connected together. Such charge reversal processes are avoided by charging the energy storage modules, in particular via an external balancing energy source such as a photovoltaic system or the like, to the same charge states.
  • a contactor arrangement according to the invention makes it possible for energy storage modules that are connected together depending on the situation to be disconnectable, for example for an exchange or necessary maintenance of an energy storage module, and then to be able to be connected again with the same state of charge.
  • the invention takes into account that charge reversal processes between the energy storage devices should advantageously be avoided.
  • the control unit is designed to activate the first or second semiconductor switch and thus to connect the balancing energy source to the first or second energy storage module. As a result of the connection between the balancing energy source and the energy storage module, the energy storage module is charged.
  • the control unit according to the invention is also not limited to controlling only two energy storage modules. Three, four or more energy storage modules can also be controlled in the same way by means of the control unit. According to a further aspect of the invention, the above-mentioned object is achieved by an energy store, in particular a battery container, according to claim 9 .
  • the above-mentioned object relating to the method is achieved by a method for controlling the control unit according to claim 10.
  • the procedure has the steps:
  • the open state of the third mechanical switch is to be understood here as meaning that the mechanical changeover switch connects its first connection to its second connection. In this state, the energy storage modules are separated from each other.
  • the closed state of the first or second semiconductor switch means that the control unit controls the first or second semiconductor switch and energy can flow through it.
  • the first energy storage module is connected by means of the first semiconductor switch or the second energy storage module by means of the second semiconductor switch with the balancing energy source.
  • the switching of the mechanical changeover switch to an open state takes place in particular with a first switching position.
  • the first hybrid contactor is advantageously connected to a first energy storage module via a first connection and can be connected to the mechanical changeover switch via a second connection and optionally to a balancing energy source via a third connection.
  • the first energy storage module can be connected to a balancing energy source by means of a first semiconductor switch via that third connection—insofar as this is optional, with the first hybrid contactor remaining in a first switching position; in this respect, the third connection for the switching position is not available,
  • the second hybrid contactor is connected to a second energy storage module via a first connection and can be connected to the mechanical changeover switch via a second connection and optionally to the balancing energy source via a third connection.
  • the second energy storage module can be connected to a balancing energy source by means of a second semiconductor switch via that third connection—in this respect optional, with the second hybrid contactor remaining in a first switching position; in this respect, the third connection for the switching position is not available,
  • the first and the second energy storage module can be connected to one another via a first and a third connection of the mechanical changeover switch, in particular to a second switching position, and can be separated from one another via a first and a second connection of the mechanical changeover switch, in particular to a first switching position.
  • the first semiconductor switch is arranged between the first terminal and the third terminal of the first hybrid contactor and the second semiconductor switch is arranged between the first terminal and the third terminal of the second hybrid contactor.
  • the switches of the contactor arrangement are connected to the control unit, in particular via a BUS connection.
  • the first energy storage module advantageously has a first sensor for measuring a first state of charge, ie a state of charge of the first energy storage module
  • the second energy storage module has a second sensor for measuring a second state of charge, ie a state of charge of the second energy storage module.
  • the control unit is designed to both to receive values corresponding to the first state of charge and to receive values corresponding to the second state of charge.
  • the first and the second sensor measure current values of the first and the second state of charge. These values can only be measured, for example, when energy storage modules have been replaced.
  • the values of the first and the second state of charge can also be measured continuously.
  • one of the first and second energy storage modules is advantageously determined as the energy storage module with the lower state of charge, with only the semiconductor switch of said energy storage module with the lower state of charge being switched over, in particular to a closed state.
  • the first energy storage module can be charged in a pulsed manner via the first semiconductor switch using pulse width modulation.
  • the second energy storage module can be charged in a pulsed manner via the second semiconductor switch using pulse width modulation.
  • the first and the second energy storage module can be charged in a pulsed manner.
  • the aforementioned control unit has different operating states.
  • the control unit In an interconnected state of the first and the second energy storage module, the control unit does not control the first hybrid contactor and the second hybrid contactor. Both the first semiconductor switch of the first hybrid contactor and the second semiconductor switch of the second hybrid contactor are then open.
  • the mechanical switch connects the second connection of the first hybrid contactor and the second connection of the second hybrid contactor.
  • the mechanical changeover switch is designed here to connect the first energy storage module to the second energy storage module via a first and a third connection of the mechanical changeover switch. In this position, the mechanical switch is closed.
  • the further steps in the process are particularly advantageous: - Switching the mechanical switch into a closed state, in particular with a second switching position, and switching the first semiconductor switch or second semiconductor switch, in particular into an open state, wherein
  • the mechanical changeover switch separates the second connection of the first hybrid contactor and the second connection of the second hybrid contactor from one another.
  • the mechanical switch is designed to separate the first energy storage module from the second energy storage module via a first and a second connection of the mechanical switch.
  • the control unit controls the first semiconductor switch or the second semiconductor switch.
  • the control unit controls the semiconductor switch, which connects the energy storage module with the lower state of charge to the balancing energy source. The energy storage module is charged until the first and second energy storage modules have reached the same state of charge.
  • control unit is designed to switch over the mechanical switch in an automated manner, for example before each change of an energy storage module.
  • the control unit is advantageously designed to monitor the state of charge of the first energy storage module and the state of charge of the second energy storage module when the control unit starts operating. This ensures direct monitoring of the state of charge and, depending on this, switching to the interconnected state or the state of charge.
  • FIG. 1 shows a circuit diagram of a preferred embodiment of an energy store with a control unit with the interconnection between the hybrid contactors of the control unit shown according to the concept of the invention
  • FIG. 2 shows a flow chart of a preferred embodiment of a method for controlling the control unit according to the concept of the invention.
  • FIG. 1 shows a circuit diagram of a preferred embodiment of an energy store 60 with a control unit 10 for controlling a contactor arrangement 50;
  • This contactor arrangement 50 has an interconnection shown between a first hybrid contactor 12 and a second hybrid contactor 14 and the control unit 10 .
  • a hybrid contactor is to be understood as meaning an arrangement made up of a semiconductor switch and a mechanical switch; in the present case, both switches do not actually have to be used for switching.
  • the first hybrid contactor 12 has a first semiconductor switch 16 and a first mechanical switch 18 .
  • the first mechanical switch 18 points here a fixed switching position S12.
  • the switch position S12 of the first mechanical switch 18 is fixed here for connecting the contacts 1 and 2 to the connection connection 1-2; i.e. between contact 1 of the first connection 24.1 and contact 2 of the second connection 24.2 of the first mechanical switch 18.
  • Only in principle is the switch position S13 for connecting the contacts 1 and 3 (connection connection 1-3; i.e. between contact 1 of the first Connection 24.1 and the contact 3 of the third connection 24.3 of the first mechanical switch 18) present; but is not used or is blocked; in particular in favor of the connection explained below via a first semiconductor switch 16.
  • the second hybrid contactor 14 also comprises a semiconductor switch, the second semiconductor switch 20, and a mechanical switch, the second mechanical switch 22.
  • the second mechanical switch 22, which is designed as a mechanical switch, also has between the contacting 1 of the first connection 26.1 and the contact 2 of the second connection 26.2 of the second mechanical switch 22 in the view shown in Fig. 1, the connection connection 1-2 set in the switching position S12 of the second mechanical switch 22.
  • both the first hybrid contactor 12 and the second hybrid contactor 14 (and contacts 1) have a first and a second energy storage module Ml, M2 and a second connection 24.2, 26.2 (and Contacts 2) to a mechanical changeover switch 28 also also have a third connection 24.3, 26.3 (and contacts 3) to a balancing energy source 30; each with assigned contacts 1, 2 and 3.
  • the switching position S12 of the second mechanical switch 22 is fixed here for connecting the contacts 1 and 2 (connection connection 1-2; i.e. between the contact 1 of the first connection 26.1 and the contact 2 of the second Connection 26.2 of the second mechanical switch 22) set.
  • the switching position S13 for connecting the contacts 1 and 3 (connection connection 1-3; ie between the contact 1 of the first connection 26.1 and the contact 3 of the third connection 26.3 of the second mechanical switch 22) is only available in principle; but is not used or is blocked; in particular in favor of the connection explained below via a second semiconductor switch 20.
  • the first energy storage module M1 and the second energy storage module M2 are each designed to deliver energy to an energy supply network 36 .
  • the line connecting the network connection NI between the first energy storage module M1 and the energy supply network 36 represents the situation in the charging state SL.
  • the energy storage modules M1 and M2 are not connected to the energy supply network 36.
  • the line connecting the network connection N2 between the first energy storage module M1 and the energy supply network 36 represents the situation in the interconnected state SA; ie the energy storage modules M1 and M2 are connected to the energy supply network 36 here.
  • the control unit 10 is connected via a BUS system 34 to the first hybrid contactor 12, the second hybrid contactor 14 and the mechanical switch 28.
  • the first hybrid contactor 12 and the second hybrid contactor 14 can each be connected to one another via the contacts 2 of their respective second connection 24.2, 26.2 by the mechanical changeover switch 28.
  • the mechanical changeover switch 28 has connections for connecting the first hybrid contactor 12 and the second hybrid contactor 14 .
  • the mechanical changeover switch is connected via its first connection 32.1, i.e. via the corresponding contact 1, to the second connection 24.2 of the first hybrid contactor 12 via its corresponding contact 2.
  • the mechanical changeover switch 28 can be brought into an open position via the one second connection 32.2 and its corresponding contact 2.
  • the mechanical switch 28 connects to the second terminal 32.2 and its corresponding contact 2 of the mechanical switch 28; there is nothing connected in this embodiment.
  • This contact 3 is connected to the contact 2 of the second connection 26.2 of the second hybrid contactor 14 via a third connection 32.3 and its corresponding contact 3 of the mechanical switch 28; when the changeover switch 28 is moved into a switching position S13, a connection can thus be established between the contact 1 of the first connection 32.1 of the mechanical changeover switch 28 and the second connection 26.2 of the second hybrid contactor 14 are produced - and thus a connection between energy storage modules Ml and M2 shown fixed switch position S12 of the first mechanical switch 18.
  • the arrangement of the first and second mechanical switch 18, 22 and the mechanical changeover switch 28 means that the first energy storage module M1 and the second energy storage module M2 can be connected to one another.
  • the energy storage modules Ml, M2 are via the contacts 1-2-1-3-2-1 (from Ml to M2) or via the contacts 1-2-3-1-2-1 (from M2 to Ml) of the following connections connected by means of the mechanical switch 18, 22 and the mechanical switch 28 (from Ml to M2): first terminal 24.1 and second terminal 24.2 of the first hybrid contactor 12 (switch position S12), first terminal 32.1 and third terminal 32.3 of the mechanical switch 28 ( Switch position S13), second terminal 26.2 and first terminal 26.1 of the second hybrid contactor 14 (switch position S12).
  • the contactor arrangement 50 of the energy store 60 is in an interconnected state SA.
  • the third mechanical switch 28 then contacts its first connection 32.1 and its third connection 32.3; the first mechanical switch 18 and the second mechanical switch 22 remain in the same switch position S12 as shown in FIG.
  • Both the first semiconductor switch 16 of the first hybrid contactor 12 and the second semiconductor switch 20 of the second hybrid contactor 14 are then open, so to speak.
  • the mechanical changeover switch 28 connects the second connection 24.2 of the first hybrid contactor 12 and the second connection 26.2 of the second hybrid contactor 14.
  • the mechanical changeover switch 28 is designed here via a first and a third connection 32.1, 32.3 of the mechanical Switch 28 to connect the first energy storage module Ml with the second energy storage module M2. In this position, the mechanical switch 28 is closed, so to speak. In such an interconnected state of the first and the second energy storage module Ml, M2, the control unit 10 does not control the first hybrid contactor and the second hybrid contactor, in the sense that the first semiconductor switch 16 or the second semiconductor switch 20 is not switched through.
  • the switching position on the connections of the mechanical changeover switch 28 must be changed from the switching position S13 to the switching position S12 shown in FIG. In this position, the mechanical switch 28 is open, so to speak.
  • the switching position S12 of the mechanical switch 28 as shown in FIG. 1 connects the mechanical switch 28 to the second connection 32.2 and its corresponding contact 2 of the mechanical switch 28; there is nothing connected in this embodiment.
  • This enables a state of charge SL. for the energy storage module Ml, M2.
  • the control unit 10 controls the first semiconductor switch 16 or the second semiconductor switch 20 in the sense that the first semiconductor switch 16 or the second semiconductor switch 20 is switched through.
  • the control unit 10 is designed to receive the first state of charge of the first energy storage module M1 via a first sensor and the second state of charge of the second energy storage module M2 via a second sensor S2. If the states of charge of the energy storage modules M1, M2 differ, the energy storage module with the lower state of charge is charged by the balancing energy source 30.
  • the control unit 10 controls the first semiconductor switch 16 or the second semiconductor switch 20 so that this respective semiconductor switch 16 or 20 is closed, so to speak.
  • the contactor arrangement 50 of the energy store 60 is now in a charging state SL in which the first semiconductor switch 16 thereby connects the first energy storage module M1 to the balancing energy source 30 or the second semiconductor switch 20 thereby connects the second energy storage module M2 to the balancing energy source 30; in principle, both semiconductor switches 16 and 20 could also be switched through, but this could lead to simultaneous charging—however, this is avoided as explained further below; but it would be possible in principle.
  • the switch position S12 of the first mechanical switch 18 is fixed here for connecting the contacts 1 and 2 to the connection connection 1-2; ie between the contact 1 of the first connection 24.1 and the contact 2 of the second connection 24.2 of the first mechanical switch 18.
  • the switching position S12 of the second mechanical switch 22 is fixed here for connecting the contacts 1 and 2 (connection connection 1-2; ie between the Contacting 1 of the first connection 26.1 and contacting 2 of the second connection 26.2 of the second mechanical switch 22) set. Only the mechanical changeover switch 28 is therefore provided for changing over U between the interconnected state SA and the charging state SL.
  • FIG. FIG. 2 shows a flow chart for the schematic representation of a method 100 for controlling the control unit 10 according to an embodiment of the invention with reference to the embodiment of the control unit 10 as this in connection with FIG. 1 is described.
  • a first step 110 of the method 100 the first state of charge of the first energy storage module M1 and the second state of charge of the second energy storage module M2 are measured.
  • a second step 120 the first state of charge and the second state of charge are compared with one another.
  • a third step 130 the mechanical changeover switch 28 is opened, i.e. brought into the switching position S12 shown in Fig. 1, and the first or second semiconductor switch 16, 20 is closed, i.e. in the respective switching position S12 of the hybrid contactors 12 shown in Fig. 14 are the first energy storage module and the second energy storage module Ml, M2 separated - the respective semiconductor switch 16 or 20 is closed to connect an energy storage module Ml, M2 with the balancing energy source 30th.
  • the third step 130 is carried out in the event that the first state of charge of the first energy storage module M1 differs from the second state of charge of the second energy storage module M2. Only the semiconductor switch 16 or 20 that connects the lower-charged energy storage module M1 or M2 to the balancing energy source 30 is then closed, so that only one energy storage module M1 or M2 is charged. The first energy storage module M1 is therefore connected to the balancing energy source 30 via the first semiconductor switch 16 or the second energy storage module 20 via the second semiconductor switch.
  • a further step 140 when the first energy storage module M1 and the second energy storage module M2 have reached the same state of charge, the first or second semiconductor switch 16, 20 is opened and the mechanical changeover switch 28 is closed, i.e. from the switching position S12 shown in Fig. 1 to the Brought switching position S13, so that the first and the second energy storage module Ml, M2 are connected to each other again.
  • the three steps are repeated in sequence; in particular repeated in a loop and without interruption, so to speak continuously.
  • the control unit 10 and the method 100 are designed to switch the energy storage modules Ml, M2 to one another depending on the situation, in particular to connect them (switch position S13 of the mechanical switch 28) or to separate them from one another (switch position S12 of the mechanical switch 28 shown in FIG. 1); in the latter case, the first or the second energy storage module M1, M2 is loaded.
  • the situation-dependent control is explained below using an example.
  • the control unit 10 receives a signal. As a result of this signal, the control unit 10 sends a control signal to the mechanical changeover switch 28 in order to separate the energy storage modules M1, M2 from one another (switching position S12 of the mechanical changeover switch 28 shown in FIG. 1). The respective energy storage module can now be replaced.
  • the state of charge of the first and the second energy storage module is measured with a first and a second sensor. If the states of charge of the first and the second energy storage module Ml, M2 differ, the energy storage module with the lower state of charge is charged until it reaches the state of charge of the other energy storage module - in this case the aim is that both energy storage modules Ml, M2 have practically the same state of charge again; then they could be connected to each other again (switching position S13 of the mechanical changeover switch 28).
  • control unit controls the semiconductor switch 16 or 20 for the energy storage module, which is initially charged even less, and thus connects the energy storage module M1 or M2 to the balancing energy source 30.
  • charging is carried out in a pulsed manner by means of pulse width modulation.
  • the control unit opens the respective semiconductor switch 16 or 20 again and reconnects the energy storage modules M1 M2 to one another via the mechanical changeover switch 28 (switching position S13 of the mechanical changeover switch 28); with which the loading target is reached.

Abstract

L'invention concerne une unité de commande (10) permettant de commander un ensemble contacteur (50), l'ensemble contacteur (50) comprenant un premier contacteur hybride (12) comprenant un premier commutateur à semi-conducteur (16) et un premier commutateur mécanique (18), un second contacteur hybride (14) comprenant un second commutateur à semi-conducteur (20) et un second commutateur mécanique (22), et un commutateur mécanique (28), et l'unité de commande (10) étant conçue pour relier un premier module de source d'énergie stockée et un second module de source d'énergie stockée (M1, M2) à un réseau d'alimentation en énergie (36), l'unité de commande (10) étant pourvue d'un premier état de charge du premier module de source d'énergie stockée (M1) et d'un second état de charge du second module de source d'énergie stockée (M2) à des fins de comparaison. Selon l'invention, l'unité de commande (10) est conçue pour faire passer le commutateur mécanique (28) dans un état de commutation dans lequel la liaison entre le premier module de source d'énergie stockée (M1) et le second module de source d'énergie stockée (M2) est coupée, si la comparaison montre que le premier état de charge et le second état de charge sont différents, l'état de commutation se présentant sous la forme d'un état de charge (SL) pour le premier module de source d'énergie stockée et le second module de source d'énergie stockée (M1, M2), et dans l'état de charge (SL), le premier module de source d'énergie stockée (M1) est relié à la source d'énergie d'équilibre (30) au moyen du premier contacteur hybride (12) ou le second module de source d'énergie stockée (M2) est relié à la source d'énergie d'équilibre (30) au moyen du second contacteur hybride (14).
PCT/EP2021/085017 2020-12-10 2021-12-09 Unité de commande, source d'énergie stockée et procédé de commande de la source d'énergie stockée WO2022122932A1 (fr)

Applications Claiming Priority (2)

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DE102020132936.9A DE102020132936B4 (de) 2020-12-10 2020-12-10 Steuereinheit, Energiespeicher und Verfahren zum Steuern des Energiespeichers
DE102020132936.9 2020-12-10

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DE102014212934A1 (de) * 2014-07-03 2016-01-07 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum Ladezustandsausgleich eines Energiespeichersystems
CN108599209A (zh) * 2018-02-13 2018-09-28 江苏博强新能源科技股份有限公司 集装箱式储能直流侧并机控制系统和方法
DE102018208619A1 (de) * 2018-05-30 2019-12-05 Siemens Aktiengesellschaft Elektrisches Energieversorgungsnetz und dessen Betrieb
DE102018126904A1 (de) 2018-10-29 2020-04-30 Sma Solar Technology Ag Verfahren und Schaltungsanordnung zum Angleichen von Ladespannungen zwischen Energiespeichern

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