朱家龙,杜正聪,祝俊.基于多相滤波器组的谐波和间谐波快速检测与分析*[J].电测与仪表,2019,56(2):90-96. Zhu Jialong,Du Zhengcong,Zhu Jun.Fast detection and analysis method of harmonics / inter-harmonics based on poly-phase filters[J].Electrical Measurement & Instrumentation,2019,56(2):90-96.
基于多相滤波器组的谐波和间谐波快速检测与分析*
Fast detection and analysis method of harmonics / inter-harmonics based on poly-phase filters
Only through real-time and accurate detection of harmonic parameters can achieve the optimal configuration of harmonic compensation device and can achieve the goal of governing harmonics and inter-harmonics. As for the real-time and high-precision parameter estimation during the harmonics and inter-harmonics detection, this paper puts forward a high-precision correction method based on the fast detection of harmonics and inter-harmonics of 50% channel overlapped poly-phase filter structure. Meanwhile, it avoids the problem that detection capacity is reduced when harmonics and inter-harmonics are in overlapped channels. Theory analysis and simulation results show that the method can effectively improve the instantaneity of detection, still maintain a high accuracy, and is also easy to implement.
