Optimization on thrust ripple of an axial-flux permanent-magnet linear synchronous machine

Author

Shi, Wei ; Xiao, Chong ; Lei, Yu ; Yu, Bin ; Wu, Fan ; Zheng, Ping

Author_Institution

Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

6

Abstract

This paper focuses on decreasing the thrust ripple of an axial-flux permanent-magnet linear synchronous machine (PMLSM) used for free-piston Stirling engines. A typical 1kW machine with 10 poles and 9 slots is investigated. By finite-element method (FEM), detent force and thrust ripple are analyzed for different axial and radial dimensions of the end stator tooth. Meanwhile, the similar trends of no-load detent force and load thrust ripple has been found. To verify the proposed method, prototype machine was manufactured and tested.

Keywords

Stirling engines; finite element analysis; linear machines; optimisation; permanent magnet machines; stators; synchronous machines; axial flux; end stator tooth; finite element method; free piston Stirling engines; optimization; permanent magnet linear synchronous machine; poles; power 1 kW; slots; thrust ripple; Force; Load modeling; Prototypes; Stator windings; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073325

Filename

6073325