Torque Ripple Reduction based on Flux Linkage Harmonics Observer for an Interior PM Synchronous Motor including Back EMF Harmonics

• DOI: 10.6113/tkpe.2013.18.4.367
• Publication Date: 2013-09-02T01:23:13Z
• Authors: Yong-Sin Jin; Hag-Wone Kim; Kwan-Yuhl Cho; Byung-Kuk Lim
• Keywords: Flux linkage; Torque ripple; MRAS; Observer (physics); Synchronous motor; Harmonic Analysis; Harmonic

The mechanical vibration of a PM synchronous motor at low speeds due to the back emf harmonics may be serious problems in some application such as MDPS(Motor driven power steering), electric vehicles. In this paper, torque ripple reduction for an interior including is proposed. dq flux linkage permanent magnet are estimated on real time by using currents system and model MRAS observer. Based harmonics, harmonic reducing ripples compensated reference currents. estimation observer proposed algorithm was verified simulation experiment.