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Distributed battery pack power supply system and charging and discharging control method

A technology of power supply system and battery pack, applied in the field of power electronics, which can solve the problems of power supply interruption, whole module failure, danger and so on

Active Publication Date: 2018-04-27
HUAWEI TECH CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0004] However, the above figure 1 The reliability of the typical series battery pack power supply system is relatively low. Specifically, if a short-circuit fault occurs in one of the internal batteries or several batteries, it may cause the entire module to fail. When any module or module fails Sometimes, it will lead to interruption of power supply, even dangerous

Method used

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  • Distributed battery pack power supply system and charging and discharging control method
  • Distributed battery pack power supply system and charging and discharging control method
  • Distributed battery pack power supply system and charging and discharging control method

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Embodiment Construction

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0072] figure 2 It is a schematic structural diagram of Embodiment 1 of the distributed battery pack power supply system of the present invention, as shown in figure 2 As shown, the distributed battery pack power supply system of this embodiment may include: a charging module 11 , a first battery pack 12 , a first switch unit 13 , a second batt...

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Abstract

The embodiment of the invention provides a distributed battery pack power supply system and a charging and discharging control method. A first battery pack and a second battery pack of the distributedbattery pack power supply system can provide high-voltage systems, such as a power system and an air-conditioning system with electricity separately to improve the flexibility and the security of thepower supply system. When one battery pack is broken down, power supply of the other battery pack is not affected, so that the reliability of the power supply system is effectively improved.

Description

technical field [0001] Embodiments of the present invention relate to power electronics technology, and in particular to a distributed battery pack power supply system and a charging and discharging control method. Background technique [0002] With the continuous development of automobile technology, new energy vehicles such as electric vehicles and hybrid vehicles have been widely used. [0003] figure 1 It is a schematic diagram of a partial structure of a power supply system in an automobile, such as figure 1 As shown, m batteries are connected in parallel to form a module, the voltage of the module is the same as that of a single battery, the capacity of the module becomes m times the capacity of a single battery, multiple modules are connected in series to form a module, and n modules are connected in series Battery pack for power supply system. The battery pack supplies power to high voltage loads through relays. Among them, the total voltage of the battery pack d...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44B60L11/18
CPCH01M10/441H02J7/00H02J7/0013B60L53/00Y02T10/7072Y02T90/14
Inventor 王文成周岿刘伟
Owner HUAWEI TECH CO LTD
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