Influence of Eccentric Pole Shoe on Performance of Salient Pole Electrically Excited Synchronous Motor

Research Area: Volume 10,Issue 3,May, 2021 Year: 2021
Type of Publication: Article Keywords: Eccentric Pole Shoe, Salient Pole Electrically Excited Synchronous Motor, Air Gap Flux Density, Finite Element Simulation
  • Ning Shan
  • Xueyi Zhang
  • Ting Gao
  • Ruifeng Sun
Journal: IJEIR Volume: 10
Number: 3 Pages: 149-157
Month: May
ISSN: 2277-5668
Aiming at the problem that the power density of electrically excited synchronous generator is lower than that of permanent magnet motor, the method of pole shoe eccentricity is proposed to improve the output performance of motor. The air gap flux density under eccentric pole shoe is calculated analytically. The influence of eccentricity, pole arc coefficient and pole shoe thickness on motor performance is analyzed, and the important parameters are analyzed by CO simulation. The results show that proper pole shoe eccentricity can improve the sinusoidal waveform of air gap flux density, increase the output voltage of generator, and thus improve the power density of electrically excited synchronous generator.

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