Analysis and Design of SPM Machines With Fractional Slot Concentrated Windings for a Given Constant Power Region

Author

Li Junlong ; Xu Yongxiang ; Zou Jibin ; Wang Baochao ; Wang Qian ; Liang Weiyan

Author_Institution

State Key Lab. of Robot. & Syst., Harbin Inst. of Technol., Harbin, China

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

This paper presents a novel analysis and a design method of surface-mounted permanent magnet (SPM) machines with fractional slot concentrated windings (FSCWs) for a given constant power region ratio. The characteristics of working points in the constant power region are analyzed, and a method of quantifying important parameters, magnet flux, and synchronous inductance is proposed. According to the analysis, the design method of SPM machines with the FSCWs and notes is provided. Based on the proposed method, a double-layer 20-pole/24-slot SPM machine is taken as an example and designed. The designed machine is analyzed by the finite element method (FEM), and the constant power experiment is carried out on the prototype manufactured as design. The results validate the analysis and the design method in this paper.

Keywords

finite element analysis; machine windings; permanent magnet machines; double-layer 20-pole-24-slot SPM machine; finite element method; fractional slot concentrated windings; given constant power region; magnet flux; surface mounted permanent magnet machines; synchronous inductance; Couplings; Design methodology; Inductance; Magnetic flux; Power capacitors; Torque; Windings; Constant power speed ratio; FSCW; SPM machines; constant power speed ratio; flux-weakening; fractional slot concentrated winding (FSCW); surface-mounted permanent magnet (SPM) machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2447000

Filename

7128387