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Internal Fault Diagnosis ofPermanent Magnet Synchronous Generator
Fang Hongwei * #
School of Electrical Engineering and Automation Tianjin University Tianjin, 300072
*Correspondence author
#Submitted by
Subject:
Funding: Ph.D. Programs Foundation of Ministry of Education of China （No.No. 20090032120078)）
Opened online: 7 January 2013
Accepted by: none
Citation: Fang Hongwei.Internal Fault Diagnosis ofPermanent Magnet Synchronous Generator[OL]. [ 7 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4510484
 
 
A coupled field-circuit method by taking into account the saturation is proposed in this paper. The stator winding inter-turn short circuit and the rotor eccentricity hybrid fault of permanent magnet synchronous generators (PMSG) is analyzed. The harmonic currents were used in order to investigate this kind of fault in a 7.5 kVA PMSG suitable for low-power wind generation applications. Simulation results have shown that the sideband frequency currents at 25 Hz and 75 Hz, and the 17th and 19th order components of terminal currents can be used as fault detection criteria.
Keywords:Permanent magnet synchronous generator; inter-turn short circuit fault; rotor eccentricity; coupled fieldcircuit
 
 
 

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