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Method for operating a modular battery storage system, modular battery storage system, and battery management system therefor

A memory system and battery pack management technology, applied in the field of battery pack management systems, can solve the problems of high hardware and software consumption

Pending Publication Date: 2019-10-25
VARTA MICROBATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a balanced system cannot be implemented cost-effectively, since the associated hardware and software outlay is enormous

Method used

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  • Method for operating a modular battery storage system, modular battery storage system, and battery management system therefor
  • Method for operating a modular battery storage system, modular battery storage system, and battery management system therefor
  • Method for operating a modular battery storage system, modular battery storage system, and battery management system therefor

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Embodiment Construction

[0133] figure 1 shows a simplified example of a battery storage system according to the invention comprising n rechargeable energy storage modules B1 to B n and n switches S1 to S n . Each of the switches is assigned to exactly one of the energy storage modules and vice versa (S1 to B1, S2 to B2, S3 to B3, S4 to B4 and S n to B n ). The respective energy storage module can be activated and deactivated using a switch. Each of the switches can have a plurality of switch positions. In the first switch position, the energy storage module assigned to the switch is activated and its single voltage U Einzelavailable. In the second switch position, the energy storage module assigned to the switch is deactivated and its single voltage U Einzel unavailable. In the third switch position, the energy storage module assigned to the switch is activated with opposite polarity. All switches are designed to bridge their respective associated energy storage modules in the deactivated s...

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Abstract

The invention relates to a modular battery storage system comprising a group of n energy storage modules. A switch is associated with each of the n energy storage modules, by means of which the respective energy storage module can be activated and deactivated. The n energy storage modules can be interconnected by means of the switch in such a way that the individual voltages U individual of activated energy storage modules add up to form a total voltage U. According to a method for operating the battery storage system, at least one power value is determined for each of the n energy storage modules, which characterizes the power of the respective module. A temporally variable total voltage U tot (t) is produced by activating at least two energy storage modules from the group such that theytemporally overlap but over activation time intervals of different durations. According to the determined at least one power value, each of the at least two energy storage modules is associated with one of the activation time intervals of different durations. In order to carry out the method, the battery storage system comprises a battery management system specifically designed for this purpose.

Description

technical field [0001] The invention relates to a method for operating a modular battery storage system as well as a battery storage system and a battery management system therefor. Background technique [0002] A modular battery pack storage system includes a pack of n energy storage modules, where n is at least two. The energy storage module is designed to be rechargeable. Generally speaking, within a battery storage system, energy storage modules are connected to each other via parallel and / or series connections. Energy storage modules may be individual electrochemical cells or may be a composite of two or more such cells. Within such a complex, the individual electrochemical cells can in turn be connected to one another via parallel and / or series connections. [0003] Battery pack memory systems are well known as DC power sources. However, it is also possible to connect the battery storage system to the AC power grid by means of a multilevel converter. In such a con...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0024H02J7/0025H02J7/0063Y02E60/10H01M10/482H01G11/06H01G11/08H01G11/30H01G11/46H01M10/0525H01M10/06H01M10/345H01M10/425H01M2010/4271H02J7/345
Inventor D.克洛斯A.希尔内特M.埃尔默
Owner VARTA MICROBATTERY
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