链式APF的功率平衡机理和控制策略研究  

Power Balancing Mechanism and Control Strategy Research on Chained APF

作　　者：徐琳[1] 林瑞星[1] 陈长清[2] 戴炜[2] XU Lin LIN Rui-xing CHEN Chang-qing DAI Wei(State Grid Sichuan Electric Power Research Institute, Chengdu 610072, China)

机构地区：[1]国网四川省电力公司电力科学研究院,四川成都610072 [2]国网四川省电力公司攀枝花供电公司,四川攀枝花617067

出　　处：《电力电子技术》2017年第3期58-60,共3页Power Electronics

基　　金：四川省电力公司科技项目(521997140021)~~

摘　　要：研究了链式有源电力滤波器(APF)各H桥之间的功率平衡机理,采用相量法分析了各H桥直流母线电压与逆变器交流侧输出电压的相互影响机理,设计了基于直流母线平均有功功率调节和有功偏差调节相结合的直流母线电压控制策略,通过仿真验证了直流母线电压均衡控制策略的有效性。动态模拟实验表明,链式APF对于无功和谐波负载均具有良好的补偿精度和动态响应速度,实现了各H桥直流母线电压的自均衡控制。Power balancing mechanism among the individual H-bridge of the chained active power filter（APF） is presented.An efficient DC-link voltage control algorithm is proposed by using a combined eontroller structure eonsists of the average active power regulator, and the difference among the active power of each H-bridge, which is validated by the simulation.Experimental results reveal that the chained APF device provides effective compensation for the reactive power and harmonic load with high precision and fast dynamic response, the individual DC-link voltage is balance.

关 键 词：有源电力滤波器 功率平衡 电压均衡控制 

分 类 号：TN713.8[电子电信—电路与系统]