基于Buck-Boost半桥级联型储能系统均衡控制研究  

Research on Pricing Mechanism of User-side Shared Energy Storage Based on Master-slave Game

作　　者：郭才宏 唐光云 高欣 GUO Caihong;TANG Guangyun;GAO Xin(Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院,江苏南京211167

出　　处：《电工技术》2024年第24期94-99,共6页Electric Engineering

摘　　要：随着动力电池退役高峰期的到来,通过梯次利用退役动力电池构建的储能系统在能源网络背景下展现出巨大的应用潜力。为此,提出基于Buck-Boost半桥级联型储能系统均衡控制。首先,为了更好地实现退役锂电池之间的能力控制,选取SOC作为储能系统的均衡控制目标;其次,针对退役锂电池组串SOC不一致问题,采用基于Buck-Boost电路的半桥级联型拓扑结构,设计分层均衡控制策略,使得电池SOC快速达到一致,实现在子模块间以及组串间的均衡控制;最后通过在MATLAB软件中搭建仿真模型,仿真验证储能系统均衡控制策略的有效性。As the peak period of power battery retirement approaches,energy storage systems constructed from retired power batteries demonstrate significant potential for application within the energy network context.This paper proposes an equilibrium control based on the Buck-Boost half-bridge cascaded energy storage system.First,to better implement capacity control among retired lithium batteries,the State of Charge(SOC)is selected as the balancing control target for the energy storage system;secondly,in response to the issue of SOC inconsistency in retired lithium battery strings,a hierarchical balancing control strategy is designed using a half-bridge cascaded topology structure based on the Buck-Boost circuit,which allows for rapid equalization of the battery SOC to achieve inter-module and inter-string balancing control;Finally,a simulation model was built in MATLAB software to verify the effectiveness of the energy storage system's equilibrium control strategy through simulation.

关 键 词：均衡控制 Buck-Boost电路 退役锂电池 

分 类 号：TM912[电气工程—电力电子与电力传动]