一种基于P-Q理论的谐波电流检测方法的研究

摘要

介绍了P-Q瞬时无功功率理论在有源电力滤波器谐波电流检测中的应用,合理地选择需要补偿的有功和无功分量,对补偿前后电网的电流进行了比较,并用Matlab软件进行仿真.理论和仿真结果表明,该谐波电流检测方法在有源电力滤波器中可以得到很好的应用.%This essay introduces the application of P-Q instantaneous reactive power theory in harmonic current detection of active power filter. It chooses the power to be compensated and compares the compensated waveform with uncompensated waveform of an electrified wire fence. At same time, this article utilizes the Matlab to simulate the model proposed. Theory and simulation both validates the effectiveness of the proposed method. This theory can be applied in the harmonic current detection of active power filter perfectly.