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Multi-branch power distribution management of multi-branch energy storage system

An energy storage system and multi-branch technology, applied in the field of multi-branch power distribution management devices

Active Publication Date: 2021-11-02
NIO ANHUI HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the power allocation management of multi-branch energy storage systems where the energy packets of each branch have large differences in SOH, there is a big problem

Method used

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  • Multi-branch power distribution management of multi-branch energy storage system
  • Multi-branch power distribution management of multi-branch energy storage system
  • Multi-branch power distribution management of multi-branch energy storage system

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Embodiment Construction

[0083] For purposes of brevity and illustration, the principles of the invention are described herein primarily with reference to exemplary embodiments thereof. However, those skilled in the art will readily recognize that the same principles are equally applicable to all types of multi-branch power distribution management devices and methods, and / or multi-branch power distribution management devices using the multi-branch power distribution management device / method. road energy storage systems, and these same principles can be implemented in them. Moreover, in the following description, reference is made to the accompanying drawings, which illustrate certain exemplary embodiments. Electrical, mechanical, logical and structural changes may be made to these embodiments without departing from the spirit and scope of the present invention. Furthermore, although a feature of the invention is disclosed in connection with only one of several implementations / embodiments, such featur...

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Abstract

The invention relates to multi-branch power distribution management of a multi-branch energy storage system, and belongs to the technical field of energy storage system control. The multi-branch power distribution management device for the multi-branch energy storage system of the present invention includes: a life cycle management unit, which is used for the difference degree of the health state SOH between the energy packets of the multiple branches Determine whether to preferentially use the branch with a relatively large SOH for charging / discharging; and / or an energy balance management unit, which is used to determine the SOH of each branch based on the SOH of the energy package corresponding to each branch and the state of charge SOC. Charge / discharge priority. The present invention can make the SOH of the energy packs of all branches more and more consistent through the life cycle management, and can quickly realize the energy balance of each branch in the charge and discharge process through the energy balance management, and avoid the excessive use of a certain branch Or overcharge and overdischarge.

Description

technical field [0001] The invention belongs to the technical field of energy storage system control, and relates to a multi-branch power distribution management device and method for a multi-branch energy storage system. Background technique [0002] In a multi-branch energy storage system, each branch is equipped with a corresponding energy package (such as a battery), and multiple branches can be charged and discharged together. Therefore, power distribution management is performed during the charging / discharging process. [0003] For the energy package of each branch, its state can be characterized by SOC and SOH, and even if they change dynamically, it is easy to collect and obtain from the energy package. [0004] SOC (State of Charge, state of charge), which indicates the state of charge of energy packs such as batteries, and also reflects the remaining power of energy packs such as batteries; SOC is usually the ratio of the remaining capacity of energy packs such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/13B60L58/16H02J7/04H02J7/00
CPCH02J7/0021H02J7/042H02J7/0018H02J7/06Y02T10/70
Inventor 赵金程马骏
Owner NIO ANHUI HLDG CO LTD