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BMS multi-machine parallel implementation system

A technology to realize system and parallel connection, applied in the electronic field, can solve problems such as overcurrent, overvoltage, negative pressure, etc., and achieve the effect of not easy power consumption and eliminating pressure difference

Active Publication Date: 2020-07-07
HANGZHOU BMSER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a BMS multi-machine parallel realization system, which is used to solve the problems of overcurrent, overvoltage and negative pressure caused by hot swapping of battery packs in the prior art

Method used

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  • BMS multi-machine parallel implementation system
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  • BMS multi-machine parallel implementation system

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Embodiment Construction

[0031] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0032] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0033] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of t...

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Abstract

The invention provides a BMS multi-machine parallel connection implementation system, wherein a plurality of BMSs are connected in parallel and are connected with the bidirectional converter equipmentthrough a CAN bus, the plurality of battery packs corresponding to the plurality of BMSs are connected in parallel, and each BMS has an equipment code. The method is realized by adopting the following steps: determining one management system from the plurality of BMSs as a host and other BMSs as slaves; enabling the host to allocate IDs to the slaves according to the ID allocation table; and enabling the host to control the charging tubes and the discharging tubes of the host and the slaves according to the acquired slave information, so the corresponding BMSs are connected in parallel. An extra host is not needed, the host is not fixed, and the BMS connected in parallel can be added conveniently.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a BMS multi-machine parallel realization system. Background technique [0002] In the existing energy storage system, due to the different demands on capacity and power, a single set of batteries can no longer meet the demand. It is necessary to connect multiple sets of batteries in parallel to increase the capacity and maximum charge and discharge current of the battery. When two sets of batteries are connected in parallel, they can be directly connected in parallel only when the voltages are relatively close. When there is a voltage differential, the higher voltage battery pack will charge the lower voltage battery pack. Due to the small internal resistance of the battery, when the voltage difference is large, the charging current will be too large, resulting in battery damage. [0003] In the existing solution, one master is fixed in the parallel BMS for management, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44H01M10/46H02J7/00
CPCH01M10/4207H01M10/425H01M10/441H01M10/46H02J7/0013H02J7/0014H02J7/0016H02J7/0019H02J7/0068H01M2010/4271H01M2010/4278Y02E60/10
Inventor 夏圣金周逊伟
Owner HANGZHOU BMSER TECH
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