Title :
Stator Winding Inter-Turn Short Circuit and Rotor Eccentricity Diagnosis of Permanent Magnet Synchronous Generator
Author :
Xiao Zhaoxia ; Fang Hongwei
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Polytech. Univ., Tianjin, China
Abstract :
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 :
fault diagnosis; permanent magnet generators; rotors; stators; synchronous generators; wind power plants; PMSG; apparent power 7.5 kVA; coupled field-circuit method; fault detection criteria; frequency 25 Hz; frequency 75 Hz; harmonic currents; low-power wind generation applications; permanent magnet synchronous generator; rotor eccentricity diagnosis; stator winding interturn short circuit; Circuit faults; Finite element methods; Harmonic analysis; Integrated circuit modeling; Rotors; Stator windings; Wind turbines;
Conference_Titel :
Control, Automation and Systems Engineering (CASE), 2011 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0859-6
DOI :
10.1109/ICCASE.2011.5997721
