Skew effect on demagnetization of permanent magnet synchronous machines with three-phase short-circuit fault

Author

Chen Yu ; Ronghai Qu ; Wei Xu ; Jian Li

Author_Institution

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

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

2014

Lastpage

2017

Abstract

This paper makes comprehensive investigation on the skew effect on the demagnetization of permanent magnet synchronous machines (PMSMs). During the processing of the short-circuit fault, each segment of the permanent magnets (PMs) due to the skewed-angle has a different demagnetizing situation in the axial direction. This paper uses 3-dimensional (3D) finite element analysis (FEA) model to verify relevant theoretical study.

Keywords

fault diagnosis; finite element analysis; permanent magnet machines; reliability; synchronous machines; 3-dimensional finite element analysis model; 3D FEA model; PMSM demagnetization; axial direction; demagnetizing situation; permanent magnet segment; permanent magnet synchronous machines; skew effect; skewed-angle; three-phase short-circuit fault; Analytical models; Circuit faults; Demagnetization; Magnetic circuits; Magnetic flux; Permanent magnet machines; Rotors; 3-dimensional (3D) finite element analysis (FEA) model; Demagnetizaion of permanent magnet (PM); short-circuit fault; skew effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013816

Filename

7013816