分散式储能MMC综合控制策略研究  

Research on Comprehensive Control Strategy of Distributed Energy Storage MMC

作　　者：吉宇[1] 王生强[1] 曹炀 谢飞[1] 徐晓轶 

机构地区：[1]国网南通供电公司,江苏南通226006 [2]东南大学电气工程学院,江苏南京210096

出　　处：《中国电力》2017年第10期159-165,共7页Electric Power

基　　金：国网江苏省电力公司科技项目(J2017118);教育部博导类博士点基金(20130092110041)~~

摘　　要：分散式储能多电平变换器(MMC)是一种基于MMC的衍生结构,它将蓄电池储能单元集成于每个子模块中,这样可以实现储能单元的模块化、分散化。同时,分散式储能MMC还具有诸多优势,比如高电压、大容量、低总谐波失真、高容错能力。这些优势使得这种拓扑适用于大容量储能、电机驱动、新能源并网等。分析了分散式储能MMC的工作原理,在此基础上提出了剩余电量控制、能量管理机制、电池储能电路充放电控制,实现了变换器的综合协调控制。搭建了基于Matlab/Simulink的仿真平台和硬件实验平台,仿真和实验结果验证了上述控制策略的优越性和正确性。Distributed energy Storage MMC is a derived structure of MMC where the energy storage unit is integrated in the submodule. Thus energy storage units are decentralized and modular. Meanwhile, Distributed energy Storage MMC has a lot of advantages including high voltage, large capacity, low THD and high fault tolerance. These advantages make it applicable in many fields, for instance, large-scale energy storage, motor drive, renewable energy generation. The working principle of converter is analyzed too. SOC control, energy management mechanism and battery energy storage circuit charging and discharging control are introduced, that realize comprehensive coordination control of system. Simulation results based on Matlab/Simulink and hardware experimental prove superiority and correctness of proposed control strategies.

关 键 词：分散式储能 多电平变换器 剩余电量控制 能量管理机制 充放电控制 综合协调控制 

分 类 号：TM46[电气工程—电器]