Title :
A novel control method for reducing torque ripple in PMSM applied for Electric Power Steering
Author :
Lee, Suk-Hee ; Lee, Geun-Ho ; Kim, Sung-Il ; Hong, Jung-Pyo
Author_Institution :
Sch. of Mech. Eng., Hanyang Univ., Seoul
Abstract :
This paper proposes a novel control method that uses current harmonics to minimize torque ripple for permanent magnet synchronous motor (PMSM) applied to electric power steering (EPS) system. In the EPS system, PMSM is accompanied by magnetic saturation of iron core due to high power and limited space. Partial magnetic saturation in the stator teeth results in significant torque ripple. In order to reduce output torque ripple, current harmonics calculated. Presented method is verified by experiments.
Keywords :
electric vehicles; harmonic analysis; permanent magnet motors; steering systems; synchronous motors; electric power steering system; harmonic current; iron core; partial magnetic saturation; permanent magnet synchronous motor; stator teeth; torque ripple reduction; Control systems; Discrete Fourier transforms; Fluctuations; Forging; Inductance measurement; Rotors; Saturation magnetization; Stator cores; Synchronous motors; Torque control;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
