同时检测高次谐波和无功电流的新方法研究

Research on New Method Detecting Reactive Current and High-order Harmonic

有源电力滤波器是当前对电网中谐波污染的有效手段 ,基于瞬时无功功率理论提出了一种能同时检测瞬时无功电流和高次谐波电流的检测方法 ,研制了采用这一检测方法的 80 C196 KC有源电力滤波样机 。

Active filter system is effective means to power network of harmonic pollution. Based on the theory of instantaneous reactive power, a new detecting method is discussed with which instantaneous current and high frequency harmonics can be detected simultaneously. With the method a 80C196KC active filter system is made. The experiment results and computer simulation show that the method is correct and feasible.