การกำจัดฮาร์มอนิกในระบบขับเคลื่อนกระแสสลับด้วยวิธีไฮบริด

Abstract

This paper presents a hybrid method for current harmonic elimination for a single-phase induction motor drive. The approach employs the sliding window Fourier analysis method to identify harmonic contents for a parallel active power filter. An LC passive power filter designed by the contour map method is employed to compress some harmonics and decrease the power rating of the active power filter. It is found that the proposed hybrid power filter successfully eliminate the current harmonic to be complied with the IEEE Std 519-1992 for low rated power systems.