有源滤波器中基于DSP的谐波电流检测方法研究

Research on Harmonic Current Detecting in the Design of APF Based on DSP

有源滤波器设计中,谐波电流的实时检测与分离是其中的关键。根据瞬时无功理论,提出基于DSP的谐波电流检测方法,实现了谐波电流和无功电流的实时、快速检测。

Harmonic current detecting is important in the design of APF. A method which detects harmonic current of three - phase system with DSP based on theory of instantaneous reactive power is presented in this paper. The simulation and experiment results show that the scheme is reliable.