摘要
针对改进型DC侧APF具有负载输出电压可调、控制和驱动简单、储能电容容量小等优点,依据单相改进型拓扑,提出一种三相改进型DC侧APF拓扑模型,对三相整流类负载进行谐波治理具有技术优势。与三相PFC相比,该拓扑仅处理部分功率,主电路结构简单;与交流侧APF相比,简化了电路结构,减少了功率开关数量。仿真结果证明了该拓扑的正确性和可靠性。
As the improved DC side active power filter(APF) is characterized by adjustable load output voltage,simple control and drive,small storage capacitance etc.,this paper proposes an improved three-phase DC side APF topology model based on an improved single-phase topology,which has great technical advantages of harmonic elimination for three-phase rectifier load.Compared with the three-phase power factor correction(PFC),the proposed topology only processes part of power and the main circuit structure is simple;compared with the AC side APF,the circuit structure is simplified and the amount of the power switches is reduced.The simulation results show that this topology has high accuracy and reliability.
出处
《浙江电力》
2012年第6期13-16,24,共5页
Zhejiang Electric Power
关键词
谐波治理
整流桥类负载
谐波注入
有源电力滤波器
harmonic elimination
bridge rectifier type load
harmonic injection
active power filter