Translated Title
Research on an improved p-q harmonic current detection method based on instantaneous reactive power theory
Translated Abstract
Aiming at the problem that the traditional harmonic detection algorithm has a good result in detecting the symmetry of three-phase voltage,but has a great error in detecting the asymmetry of threephase voltage,an accuracy improved p-q harmonic detection method is proposed which is suitable for both three-phase voltage symmetry and asymmetry system.The harmonic detection method uses positive and negative sequence decoupling theory to extract the fundamental positive sequence voltage component of the three-phase voltage,and then carries out the corresponding tracking calculation through given harmonic fitting accuracy and relative error index to achieve the harmonic current detection.The simulation and experiment show that the proposed harmonic detection method has more advantages than the traditional method,and the accuracy,effectiveness and anti-jamming performance are good.
Translated Keyword
fitting accuracy
harmonic detection
improved p-q method
instantaneous reactive power
positive negative sequence decoupling method
Access Number
WF:perioarticalfzdxxb201801014
