Optimal design of shoe shape to reduce the cogging torque of SPMSM of two type of magnet

Issue title: Proceedings from the 16th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2013)

Guest editors: Xavier Maldague and Toshiyuki Takagi

Article type: Research Article

Authors: Sim, Da-Hee^{a; *} | Jang, Jin-Seok^a | Jeong, Jin-Chan^b | Kim, Byung-Taek^a

Affiliations: [a] Department of Electrical Engineering, Kunsan National University, Gunsan, Korea | [b] Korea Electronics Technology Institute, Bucheon, Korea | Université Laval, Canada | Tohoku University, Japan

Correspondence: [*] Corresponding author: Da-hee Sim, Department of Electrical Engineering, San 68 Miryongdong, Kunsan National University, Gunsan 573-701, Korea. E-mail: [email protected]

Abstract: This paper investigates optimal design of shoe shape so as to reduce cogging torque of variable-flux (surface permanent magnet synchronous motor) SPMSM using two type of magnets. First, it suggests numerical analysis method of cogging torque of motor organized by two types of magnet. With the numerical method, it designs shoe shape of stator that cogging torque is minimized. Finally, it verifies effectiveness of design using the finite-element analysis.

Keywords: Cogging torque, numerical method, SPMSM, variable-flux

DOI: 10.3233/JAE-141852

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 45, no. 1-4, pp. 363-369, 2014