Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Hyunwoo Kim, Yeji Park, Huai-Cong Liu, Pil-Wan Han and Ju Lee
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Hyunwoo Kim: Department of Electrical Engineering, Hanyang University, Seoul 04763, Korea
Yeji Park: Department of Electrical Engineering, Hanyang University, Seoul 04763, Korea
Huai-Cong Liu: Hyundai Transys, Hwaseong 18280, Korea
Pil-Wan Han: Electric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea
Ju Lee: Department of Electrical Engineering, Hanyang University, Seoul 04763, Korea

Energies, 2020, vol. 13, issue 2, 1-15

Abstract: In order to improve the efficiency, a line-start synchronous reluctance motor (LS-SynRM) is studied as an alternative to an induction motor (IM). However, because of the saliency characteristic of SynRM, LS-SynRM have a limited power factor. Therefore, to improve the efficiency and power factor of electric motors, we propose a line-start permanent magnet assistance synchronous reluctance motor (LS-PMA-SynRM) with permanent magnets inserted into LS-SynRM. IM and LS-SynRM are selected as reference models, whose performances are analyzed and compared with that of LS-PMA-SynRM using a finite element analysis. The performance of LS-PMA-SynRM is analyzed considering the position and length of its permanent magnet, as well as its manufacture. The final model of LS-PMA-SynRM is designed for improving the efficiency and power factor of electric motors compared with LS-SynRM. To verify the finite element analysis (FEA) result, the final model is manufactured, experiments are conducted, and the performance of LS-PMA-SynRM is verified.

Keywords: efficiency; finite element analysis; line-start synchronous reluctance motor; permanent magnet; power factor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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