摘要
针对多个H桥的接入和接出,造成各路变流器不均流均压问题,提出群系统一致性策略对群H桥模块进行协同控制。考虑H桥通信拓扑和信息交互权值以及H桥模块接入和接出系统等情况,分析了系统稳定特性,然后将所有H桥一致性信息与电压电流双闭环控制策略相结合,实现了群H桥电流状态快速一致和电压的稳定。通过Matlab/Simulink仿真结果表明,所提出的控制方案能有效地实现群H桥变流器的电流一致和电压稳定,提高系统的鲁棒性,对大规模的混合储能接入微电网有一定的理论意义。
In allusion to the problem of various converters’uneven current and voltage sharing caused by the I/O connection of multiple H bridges,a cluster system consistency strategy is proposed for the cooperative control of cluster H bridge modules.In consideration of the H bridge communication topology,information exchange weights,the I/O connection of the H bridge module and so on,the stability characteristics of the system are analyzed,and then all the H bridge consistency information is combined with the voltage and current double closed-loop control strategy,so as to realize the fast consistency of current state and the voltage stability of cluster H bridges.The simulation results obtained by Matlab/Simulink show that the proposed control scheme can effectively achieve the current consistency and the voltage stability of the cluster H bridge converters,and improve the robustness of the system.It has a certain theoretical significance for the large-scale hybrid energy storage access to microgrid.
作者
黄从胜
程志江
陈星志
HUANG Congsheng;CHENG Zhijiang;CHEN Xingzhi(College of Electrical Engineering,Xinjiang University,Urumqi 830047,China)
出处
《现代电子技术》
北大核心
2020年第6期5-8,共4页
Modern Electronics Technique
基金
新疆维吾尔自治区重大攻关计划项目(2015211C252)。
关键词
H桥直流变换器
一致性算法
混合储能
双闭环控制
协同控制
仿真分析
H bridge DC/DC converter
consistency algorithm
hybrid energy storage
double closed-loop control
cooperative control
simulation analysis
