Optimal split ratio in Switched Flux Permanent Magnet machines

Author

Li, Dawei ; Qu, Ronghai ; Zhang, Xiaolong ; Liu, Yang

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

1925

Lastpage

1931

Abstract

In this paper, it is shown that the split ratio of stator inner diameter to outer diameter influences the torque density in Switched Flux Permanent Magnet (SFPM) machines more heavily than that of conventional Permanent Magnets (PM) machines, since PM are inserted in the stator for SFPM machines. This paper presents a simplified Magnetic Circuit Analysis(MCA) method to analytically optimize the split ratio in order to maximize torque density of SFPM machines, and the method accuracy is verified by the Finite-Element Method (FEM).

Keywords

finite element analysis; magnetic circuits; permanent magnet machines; stators; FEM; MCA method; SFPM machines; finite-element method; method accuracy; optimal split ratio; simplified magnetic circuit analysis; stator inner diameter; stator outer diameter; switched flux permanent magnet machines; torque density maximization; Finite element methods; Magnetic circuits; Magnetic flux; Rotors; Saturation magnetization; Stators; Torque; Split ratio; simplified magnetic circuit analysis; switched flux permanent magnet machines; torque density;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342577

Filename

6342577