volume | PIER Journals

Abstract

Permanent magnet linear synchronous motors (PMLSM) are well known for its high thrust performance. However, such high thrust can be distorted by the existence of cogging force due to the attraction between stator core and permanent magnet (PM). To improve its performance, two parts of the PMLSM structure were considered during the design. They are PM magnetization arrangement on mover side and stator slot opening parameters on stator side. The designed models were simulated by using FEM software, and the performances of the models are then compared. The aim of the design is to achieve high thrust and low cogging force characteristics. Apart from average thrust F_ave and cogging force F_cog, the performance of the PMLSM is also evaluated using average thrust, F_ave to cogging force ratio F_cog, called as thrust ratio. Based on the design, the highest thrust ratio F_ave: F_cog, obtained from radial, axial and Halbach models, are 2.5032, 2.6262 and 1.8437, respectively.

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Ms. Nur Ashikin Mohd Nasir

Dr. Fairul Azhar bin Abdul Shukor

Dr. Raja Nor Firdaus

Prof. Hiroyuki Wakiwaka

Dr. Kunihisa Tashiro

Dr. Masami Nirei