摘要
有源电力滤波器的工作性能很大程度上取决于对谐波和无功电流高精度、实时的检测上。提出了一种基于瞬时无功功率理论ip,iq谐波检测法的改进法,构建了一种最小均方(LMS)自适应滤波器作为检测电路中的低通滤波器,使检测系统获得良好的检测精度和良好的响应速度,进而获得良好的谐波补偿效果。基于MATLAB的计算机仿真实验验证了该谐波电流检测算法的正确性和有效性。
Harmonic and reactive currents＇ highly precise and real-time detecting make important influence on active power filter＇s performance. An improved ip, iq method is presented on harmonic and reactived currents detection, using LMS adaptive filter as a low-pass filter in detection system, make the detection system obtain better precise and higher response speed, then get a better effect on the compensations of harmonic current. Computer simulation based on MATLAB results confirms the validity of the proposed harmonic detecting method.
出处
《科学技术与工程》
2009年第13期3794-3797,共4页
Science Technology and Engineering
