Proposal of a permanent magnet synchronous machine with asymmetrical rotor

Article type: Research Article

Authors: Ishikawa, Takeo^a; | Watanabe, Taiki^a | Suzuki, Yuichiro^a

Affiliations: [a] Division of Electronics and Informatics, Gunma University, Kiryu, Gunma, Japan

Correspondence: [*] Corresponding author: Takeo Ishikawa, Division of Electronics and Informatics, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan. Tel.: +81277301742; Fax: +81277301707; E-mail: [email protected]

Abstract: The authors designed a rotor structure of permanent magnet synchronous machine (PMSM) to develop a large output power by the proposed topology optimization method. As the obtained magnet shape is complex and less practical, this paper proposes a rotor topology of PMSM considering ease of manufacturing. Finite element simulation confirms that the average output power of the designed machine is higher than that of a generator used in Prius under the condition of the same stator, the same weight of rotor and the same permanent magnet volume.

Keywords: Topology optimization, permanent magnet synchronous machine, asymmetrical rotor

DOI: 10.3233/JAE-171030

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 3, pp. 797-804, 2019