电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (4): 81-84.doi: 10.16628/j.cnki.2095-8188.2021.04.015

• 储能技术 • 上一篇    下一篇

梯次利用电池储能系统架构及控制策略

李峰   

  1. 上海电气集团股份有限公司 中央研究院, 上海 200070
  • 收稿日期:2020-12-28 出版日期:2021-04-30 发布日期:2021-05-14
  • 作者简介:李 峰(1984—),男,工程师,主要从事电力电子技术及电池管理系统技术等研究。

Cascade Utilization Battery Energy Storage System Architecture and Control Strategy

LI Feng   

  1. Shanghai Electric Group Central Academy,Shanghai 200070,China
  • Received:2020-12-28 Online:2021-04-30 Published:2021-05-14

摘要:

针对梯次利用电池的特性及在储能上应用存在的问题进行分析,提出了基于DC/DC变换器交错并联结构的梯次利用电池储能系统架构,给出了基于电池PACK剩余电荷的控制策略。同时,验证了所提系统架构和控制策略的可行性。其不仅兼顾了每一个电池PACK特性,而且相比组串式储能架构具有成本优势;降低了储能系统对电池PACK一致性的要求,模块化的结构可以根据系统容量、电池PACK容量进行灵活配置,并且提高了轻载情况下的系统效率,为梯次利用电池的商业化应用提供了一种新的储能方案。

关键词: 梯次利用电池, 交错并联, 系统架构, 控制策略, 储能系统

Abstract:

This paper analyzed the characteristics of the cascade utilization battery and the problems existing in the application of energy storage,a new cascade utilization battery energy storage system architecture based on DC-DC converter interleaved parallel structure was proposed,and the control strategy based on battery pack SOC was given.It also verified the feasibility of the system architecture and control strategy.The architecture and control strategy not only take into account the characteristics of each battery pack,but also have the cost advantage compared with the series energy storage architecture.The requirements of battery pack consistency for energy storage system are reduced.The modular structure can be flexibly configured according to the system capacity and battery capacity,and the system efficiency is improved under light load.It provides a new energy storage scheme for the commercial application of echelon battery.

Key words: echelon utilization of batteries, staggered parallel, system architecture, control strategy, energy storage system

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