王子绩,孟鑫,张彦兵,周娟.基于瞬时无功功率理论的新型谐波检测算法[J].电测与仪表,2012,49(4):9-13. WANG Zi-ji , MENG Xin , ZHANG Yan-bing , ZHOU Juan.A New Harmonic Detection Algorithms Based on the Instantaneous Reactive Power Theory[J].Electrical Measurement & Instrumentation,2012,49(4):9-13.
基于瞬时无功功率理论的新型谐波检测算法
A New Harmonic Detection Algorithms Based on the Instantaneous Reactive Power Theory
In order to reduce the computation in the harmonic extraction link,rapid and accurate detection ofharmonic currents of the three-phase system,the paper proposed a new type of harmonic detection algorithms which combined the phase part in the PLL with the Park transformation based on the i-i method of instantaneous reactive power theory.This method extracts harmonic without using the voltage information which can eliminate the detection errors brought by voltage distortion,asymmetric and voltage acquisition in the traditional way,and with the combination of the two parts saves the computing time.Compared with the harmonic detection algorithm based on the generalized integrator and i-i method,this new process can extract harmonic rapidly and exactly.The simulation and experiment verify the correctness and superiority of this new harmonic detection method.
