Analytical calculation of armature-reaction field in surface-mounted permanent-magnet machines accounting for slots in stator and rotor

Article type: Research Article

Authors: Zhou, Yu^{a; *} | Li, Huaishu^a | Xue, Zhiqiang^{a; b} | Xia, Fei^c | Man, Xin^c

Affiliations: [a] College of Electrical Engineering, Naval University of Engineering, Wuhan, Hubei, China | [b] 3rd department Army Officer Academy of PLA, Hefei, Anhui, China | [c] College of Electronic Engineering, Naval University of Engineering, Wuhan, Hubei, China

Correspondence: [*] Corresponding author: Yu Zhou, Mailbox164, No. 717, Jiefang Avenue, Wuhan 430033, Hubei, China. E-mail:yu.zhou.2015@ieee.org

Abstract: In this paper, an analytical method for predicting the armature-reaction field distribution of surface-mounted permanent-magnet machine accounting for slots in the stator and rotor was presented. The analytical model is divided into three types of subdomains. And the field solution of each subdomain is obtained by applying the interface and boundary conditions. The non-overlapping or overlapping windings are also considered. The prototype machine with 4-poles/24-stator slots/20-rotor slots is used for validation. The FE (finite element) results confirm the validity of the analytical results with the proposed model.

Keywords: Permanent-magnet machines, armature reaction field, slot, subdomain model

DOI: 10.3233/JAE-150176

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 53, no. 4, pp. 591-604, 2017