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Battery pack equalization control method, device and system

A technology of balanced control and battery packs, which is applied in the direction of battery circuit devices, circuit devices, secondary batteries, etc., can solve problems such as battery inconsistency, and achieve the effects of solving poor reliability, improving reliability, and increasing capacity

Active Publication Date: 2017-12-15
STATE GRID BEIJING ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The main purpose of the present invention is to provide a battery pack equalization control method, device and system to at least solve the problem of inconsistency of batteries in the electric vehicle battery pack

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  • Battery pack equalization control method, device and system
  • Battery pack equalization control method, device and system
  • Battery pack equalization control method, device and system

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0031] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a battery pack equalization control method, apparatus and system. The battery pack equalization control method comprises the following steps: controlling a main charger to charge a main loop of a battery pack; obtaining current capacity of each battery in the battery pack; according to the current capacity, calculating equalization capacity of each battery; sending the equalization capacity of each battery to an equalization module corresponding to each battery; and according to the equalization capacity of each battery, controlling the equalization module corresponding to each battery to perform equalization charging on each battery. Through the method, apparatus and system, the consistency of each battery in the battery pack is improved, and the reliability of the battery pack is enhanced accordingly.

Description

technical field [0001] The present invention relates to the field of batteries, in particular to a method, device and system for balancing control of battery packs. Background technique [0002] At present, as countries around the world carry out research and development work on charging technology and promote the application of charging facilities, clean energy vehicles are also developing rapidly in the field of urban public transportation, such as electric vehicles. [0003] In order to meet the working needs of electric vehicles, energy storage systems and DC systems, batteries often need to be connected in series to form battery packs to achieve a certain voltage, power and energy level, such as power batteries in electric vehicles. However, in the actual working process of the battery pack, the consistency of each battery in the battery pack is not easy to guarantee. Even if the batteries connected in series are strictly screened and conditioned, the utilization of cap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/42H01M10/48
CPCY02E60/10
Inventor 刘秀兰李香龙迟忠君曾爽金渊关宇焦东升陈建树陈艳霞潘鸣宇张宝群
Owner STATE GRID BEIJING ELECTRIC POWER