Suppression of Low-order Current Harmonics in AC Motor Drives via Multiple Reference Frames Based Control Algorithm

A novel control algorithm devoted to remove undesiredlow-order current harmonics in AC motor drives is presented in thisarticle. The proposed control algorithm combines a suitable multiplereference frame synchronous harmonic estimator and multiplereference frame vector control implementation to suppress the undesiredharmonics contained in the motor stator currents. This controltechnique can handle positive-, negative-, and zero-sequence sets,keeping a satisfying dynamic behavior. The control technique hasbeen evaluated by numerical simulations and experimentally testedon a permanent magnet synchronous motor drive.