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System for echelon utilization of whole pack of waste storage batteries in storage and charging station and control method

The technology of a waste battery and a control method is applied in the field of cascade utilization of waste power batteries, which can solve the problems of insufficient number of batteries and inability to perform cascade utilization, and achieve the effects of safety cost, easy processing and reduction of power supply pressure.

Pending Publication Date: 2020-03-27
江苏华友能源科技有限公司 +1
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AI Technical Summary

Problems solved by technology

In the cascade utilization process of waste power batteries, it is often encountered that the number of batteries of the same type is insufficient, resulting in the inability to cascade utilization

Method used

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  • System for echelon utilization of whole pack of waste storage batteries in storage and charging station and control method

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Embodiment Construction

[0031] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0032] In the storage and charging station of this embodiment, the system for utilizing waste batteries in batches, such as figure 1 As shown, it includes a charging unit, an energy control system, a power control module connected to the energy control system through a communication line, an energy storage converter module, multiple bidirectional DC / DC modules, and multiple heterogeneous waste power battery packs; :

[0033] The energy control system is used to separately control the energy stora...

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Abstract

The invention relates to a system for the echelon utilization of a whole pack of waste storage batteries in a storage and charging station and a control method, and belongs to the field of waste powerstorage battery echelon utilization. Aiming at the problem that an existing charging station cannot meet the charging requirement and urgently needs to achieve the dynamic capacity expansion, according to the technical scheme, the system for the echelon utilization of the whole pack of waste storage batteries in the storage and charging station comprises a charging unit, an energy control system,a power control module, an energy storage converter module, bidirectional DC / DC modules and heterogeneous waste power storage battery packs. Each heterogeneous waste power storage battery pack is provided with one bidirectional DC / DC module, and the bidirectional DC / DC module is used for adjusting the output voltage of the heterogeneous waste power storage battery pack connected with the bidirectional DC / DC module, so that each heterogeneous waste power storage battery pack obtains the same output voltage. The energy storage converter module is connected with the charging unit in parallel. The control method utilizing the above system comprises a charging control method and a discharging control method, and can achieve the purpose of realizing the dynamic capacity expansion of the charging station by utilizing the waste storage batteries.

Description

technical field [0001] The invention belongs to the field of cascade utilization of waste power batteries, in particular to a system and control method for cascade utilization of waste batteries in a storage and charging station. Background technique [0002] Lithium-ion batteries have the advantages of large capacity, high energy density, no memory, and small self-discharge, and have been unanimously recognized by battery manufacturers and automobile manufacturers. With the rapid development of electric vehicles and large-scale energy storage markets, the output of lithium-ion power batteries, which currently occupy the largest market share, is also growing rapidly, and the number of lithium-ion batteries produced is bound to show a blowout growth. It will also bring a large number of used batteries that cannot meet the needs of electric vehicles and are retired. The remaining capacity of these batteries is mostly 60-80% of the initial capacity. How to effectively reuse the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J7/00H01M10/42
CPCH02J3/32H01M10/425H01M2010/4271Y02E60/10
Inventor 鲍伟冯俊飞王海舟
Owner 江苏华友能源科技有限公司
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