链式STATCOM并网LCL滤波器参数的优化设计  

LCL filter parameters optimal design based on cascaded STATCOM

作　　者：史丽萍[1] 曹雪祥[1] 赵万云[1] 李震[1] 戴广剑[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电力系统保护与控制》2013年第22期25-31,共7页Power System Protection and Control

基　　金：高等学校博士学科点专项科研基金(20110095110014)

摘　　要：分析了级联H桥变流器拓扑下STATCOM的LCL滤波数学模型,研究LCL滤波参数对STATCOM系统的稳定性、滤波特性、补偿效果和阻尼损耗的影响,提出一种链式STATCOM输出LCL滤波器电感比线性优化的新方法。在降低系统阻尼损耗的同时,对LCL参数进行优化设计和选择,使得STATCOM系统输出特性满足设计要求。最后,通过搭建电压10 kV、容量6 Mvar链式STATCOM的试验样机,验证了该方法的可行性和优越性。This paper analyzes the LCL filter mathematical model of STATCOM under the topology of cascaded H-bridge inverter. The impacts of LCL filter parameters on the stability of STATCOM, filter characteristics, compensation effect and power losses of damping resistor are studied. A new method of linear optimization about induction ratio is proposed. While reducing power losses of damping resistor, LCL parameters are precisely designed to make STATCOM system output characteristics meet the design requirements. Finally, through building cascaded STATCOM （10 kV, 6 MVar） experimental prototype, the feasibility and advantage of this method are confirmed.

关 键 词：级联H桥 STATCOM LCL 电感比线性优化 1 0 KV 6 Mvar 

分 类 号：TM761.1[电气工程—电力系统及自动化]