摘要
"智能充放储一体化站"概念的提出较好地解决了电动汽车能源供给设施建设面临的成本、资源、管理等问题,多用途变流装置的高效运行是一体化站的核心与难点。本文提出了一种多用途变流装置设计方案,对其放电工作状态的控制策略展开了细致讨论。对多用途变流装置并联运行时因输出电压不对等而产生的环流问题进行分析,提出了基于功率均分的三相变流器的逆变运行控制策略,使得各并联变流器输出功率均等。利用PSCAD仿真平台建立模型,对多用途变流装置结构设计和控制算法进行了大量仿真,仿真结果表明该控制策略能实现并联变流器间的功率和电流的均等分配,有效解决变流器并联产生的环流问题,为智能充放储一体化电站建设打下了基础。
The concept of ＂smart integrative station＂is an efficient solution for problems confronted by electric vehicles power supply facility construction,such as high cost,complex management. The high-efficient operation of multi-purpose converter device is the core system of a integrative station,as well as a technical difficulty. A topology design for the converter device was put forward. Then detailed research on its control algorithm was performed. A novel inverter control strategy based on equal power sharing was proposed to solve the problem of loop current caused by inverters＇ parallel operation. Furthermore,a control model was built up and lots of simulation with PACAD was performed. The simulation results show that the power and current are equally shared,and the problem of loop current is solved which laid above compose the solid foundation for＂smart integrative station＂.
出处
《电机与控制学报》
EI
CSCD
北大核心
2014年第11期15-20,共6页
Electric Machines and Control
基金
国家高技术研究发展计划(863计划)(2011AA05A108)
关键词
电动汽车
一体化站
变流装置
环流
建模仿真
electric vehicle
integrated station
converter device
loop current
modeling simulation
