基于瞬时无功功率理论的改进型有源电力滤波器的数字化研究  

Research on Digitalization of Second Generation Instantaneous Reactive Power Theory of Shunt Active Power Filters

作　　者：卢浩[1] 亓学广[1] 

机构地区：[1]山东科技大学信电学院,山东青岛266510

出　　处：《电源技术应用》2009年第5期8-11,共4页Power Supply Technologles and Applications

摘　　要：介绍了一种基于瞬时无功功率理论的改进型谐波电流检测方法和电压补偿控制方法,设计了数字低通滤波器,并将此方法运用到有源电力滤波器数字化设计中,实现对电网谐波电流的检测和补偿。通过PowerSim软件对三相电源有源电力滤波器进行仿真,证明该设计具有良好的检测和补偿控制效果。This paper discusses the fundamental theory and system structure of active power filters, the inspection of harmonic current and the method of voltage compensation. And we have employed this method to design a digital LPF. It can be applied to the design of active power filter as well to compensate the harmonic current and reactive power of power grids. With the help of software of PowerSim, we realize the simulation of three-phase power supply active power filters. The results of the simulation show that our design has good detective effects.

关 键 词：有源电力滤波器 谐波检测 补偿电流控制 数字低通滤波器 

分 类 号：TM713[电气工程—电力系统及自动化]