一种改进的单相有源电力滤波器控制策略  

An improved control strategy of single-phase active power filter

作　　者：杨红[1] 

机构地区：[1]重庆水利电力职业技术学院,重庆402160

出　　处：《电源技术》2013年第12期2221-2224,共4页Chinese Journal of Power Sources

摘　　要：单位功率因数控制是一种适用于单相有源电力滤波器的控制策略。详细介绍了该控制策略,针对其在电网电压畸变时无法保证电网输入电流为正弦波的不足,提出了改进型的策略——广义单位功率因数控制。在Pspice仿真软件中对基于两种控制策略的有源电力滤波器进行仿真研究。仿真结果显示,改进后的控制策略在电网电压畸变和未畸变时都能保证电网输入电流为正弦波。Unit power factor control is a common kind of control strategies in single-phase active power filter. The strategy was presented in detail and an improved control strategy, namely broad unit power factor control, was proposed according to the shortcoming of unit power factor control which could not ensure sinusoidal source current when the source voltage distorted. Simulation of active power filters based on these two control strategies was completed in Pspice software. Simulation results demonstrate that active power filter based on the improved control strategy can ensure sinusoidal source current no matter whether the source voltage is distorted or not.

关 键 词：有源电力滤波器 控制策略 单位功率因数控制 广义单位功率因数控制 

分 类 号：TM727[电气工程—电力系统及自动化]