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Simulation and detection of dynamic air-gap eccentricity in salient-pole synchronous machines

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2 Author(s)
H. A. Toliyat ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; N. A. Al-Nuaim

This paper presents the effect of dynamic air-gap eccentricity on the performance of a salient-pole synchronous machine. The modified winding function approach (MWFA) accounting for all space harmonics has been used for the calculations of machine winding inductances. In addition, the winding inductances have been calculated by the finite-element method to support those calculated by the MWFA. Relationships between stator-current-induced harmonics and dynamic air-gap eccentricity were investigated. The coupled magnetic circuits approach has been used for modeling the synchronous machine performance under the dynamic air-gap eccentricity. Finally, experimental results to substantiate the theoretical findings are presented

Published in:

IEEE Transactions on Industry Applications  (Volume:35 ,  Issue: 1 )