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Method for balancing energy storage systems

一种能量存储器、存储器模块的技术，应用在电荷均衡电路、电容器、集电器等方向，能够解决存储器模块下降等问题，达到损耗功率小的效果

Inactive Publication Date: 2019-11-29
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, as a rule, the capacitance of a memory module decreases with gradual aging

Method used

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  • Method for balancing energy storage systems
  • Method for balancing energy storage systems
  • Method for balancing energy storage systems

Examples

Experimental program
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Effect test

Embodiment Construction

[0059] figure 1 An energy storage system 1 is shown, which comprises capacitive storage modules 2 and an equalization device 4 . Capacitive memory modules 2 are arranged in a series circuit. Each capacitive memory module is connected to an equalization device 4 . The two ends of the series circuit lead outwards as interfaces of the energy storage system 1 .

[0060] figure 2 shown for determining the balance load Q sym_i circuit block diagram. The circuit diagram has a function for determining the capacitance C i The component 31 is used to determine the module load Q eq_i Part 32, used to determine the reference load Q ref Component 33 and for determining the balance load Q sym_i Component 34. used to determine the capacitance C i , module load Q eq_i and a balanced load Q sym_i The calculation steps of the components 31 , 32 , 34 are respectively carried out for the respective capacitive memory module 2 . The index i indicates that the corresponding calculation...

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Abstract

The invention relates to a method for equalizing an energy storage system (1), wherein the energy storage system (1) comprises a series circuit of memory modules (2, 21), wherein the series circuit of memory modules (2, 21) has at least two A capacitive memory module (2), wherein the capacitive memory module (2) is connected to the equalization device (4) such that by means of an electrical connection between the equalization device (4) and the capacitive memory module (2) The quantities can influence the load of the capacitive memory modules (2) respectively, wherein the capacitive memory modules (2) each have a capacitance (C i ). A method with the following steps is proposed for an optimized energy supply system: - Separate determination of the capacitance (C) of a capacitive memory module (2) i ), - at least from the voltage of the corresponding capacitive memory module (2) (U i ) and preset equalization voltage (U eq_i ) for capacitive memory modules (2) respectively determine the module load (Q eq_i ), - at least from the module load of the capacitive memory module (2) (Q eq_i ) to determine the base load (Q ref ), - at least from the module load (Q eq_i ) and base load (Q ref ) for the capacitive memory module (2) to determine the balance load (Q sym_i ), and - by exchanging the corresponding balancing load (Q sym_i ) to respectively influence the loading of the capacitive memory modules (2).

Description

technical field [0001] The invention relates to a method for equalizing an energy storage system, wherein the energy storage system comprises a series circuit of memory modules, wherein the series circuit of memory modules has at least two capacitive memory modules, wherein the capacitive memory modules are connected with equalization means The connections are such that the loading of the capacitive memory modules can be influenced in each case by means of an electrical flux between the compensating device and the capacitive memory modules, wherein the capacitive memory modules each have a capacitance. The invention also relates to a control device for carrying out the method and to an energy storage device having the control device. Background technique [0002] In a balanced energy storage system it is important to influence the voltage of the individual memory modules. The individual memory modules are energy stores, ie, for example capacitors, especially double-layer ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/14H01M10/42H01M10/44H01M12/00H02J7/00
CPCH01G11/14H01M10/4207H01M10/425H01M10/441H02J7/0014H01M2010/4271H02J7/345H01G11/06H01M10/46H01M2010/4278H01M2220/20H01G11/08B60L58/22Y02T10/70Y02E60/10Y02E60/13H01M12/00H02J7/0016
Inventor 吕迪格·克勒费尔法比安·夸斯特斯文·鲁珀特
Owner SIEMENS AG
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