摘要
均衡控制作为解决电动汽车电池组不一致性问题的有效方式,已发展成为汽车动力电池的关键技术之一。针对目前电感式拓扑均衡时间长、均衡速度慢的问题,本文提出了一种基于Cuk电路的多交错对称式均衡方案。以单体电池作为研究对象,引入中止参数,完成均衡策略的设计与优化,最终实现均衡控制。该均衡方案拓扑结构简单、均衡速度快,克服了传统电感式均衡能量转移路径长的缺点,并且实现了自适应调节均衡模块的控制信号占空比。最后搭建10节电池的均衡仿真模型进行验证,仿真结果表明了该均衡方案明显提高了均衡速度,改善了电池组的不一致性。
Equalization control,as an effective way to improve inconsistencies in electric vehicle battery packs,has been developed as one of the key technologies in automobile power batteries.In order to solve the problems of long time and slow balancing speed of inductive topological equalization,this study proposes a multi-staggered symmetric equalization scheme based on Cuk circuits.Taking a single battery for the investigation,the stop parameters were introduced to complete the design and optimization of the equalization strategy,and equalization control was achieved.This equalization scheme,which has the advantages of simple topology and fast balancing speed,overcomes the disadvantages of the long energy transfer path of traditional inductive equalization and achieves the adaptive adjustment of control signal duty cycles of the balancing module.Finally,in order to verify the results,an equalization simulation model of ten batteries was built.The simulation results show that the equalization scheme can improve the equalization speed and the inconsistency of battery packs.
作者
李斌
许磊
郑征
胡丹丹
张国澎
LI Bin;XU Lei;ZHENG Zheng;HU Dandan;ZHANG Guobin(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,He'nan,China;State Grid Henan Electric Power Company Jiaozuo Power Supply Company,Jiaozuo 454100,He'nan,China)
出处
《储能科学与技术》
CAS
CSCD
北大核心
2021年第4期1400-1406,共7页
Energy Storage Science and Technology
基金
河南省高等学校重点科研项目(20A470005)
河南省科技攻关项目(202102210294)
河南理工大学博士基金项目(B2019-43)。
作者简介
第一作者:李斌(1987-),男,博士,讲师,研究方向为微电网架构与控制,E-mail:libin@hpu.edu.cn;通信作者:郑征,教授,研究方向为可再生能源功率变换与并网技术,E-mail:zhengzh@hpu.edu.cn。
