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http://dx.doi.org/10.5370/JEET.2015.10.1.176

Multi-field Coupling Simulation and Experimental Study on Transformer Vibration Caused by DC Bias  

Wang, Jingang (state Key Laboratory of Power Transmission Equipment & System Security and New Technology)
Gao, Can (State Key Laboratory of Power Transmission Equipment & System Security and New Technology)
Duan, Xu (State Grid Shandong Electric Power Co. Jinan Power Supply Company)
Mao, Kai (State Grid Chongqing Electric Power Co. Yongchuan Power Supply Company)
Publication Information
Journal of Electrical Engineering and Technology / v.10, no.1, 2015 , pp. 176-187 More about this Journal
Abstract
DC bias will cause abnormal vibration of transformers. Aiming at such a problem, transformer vibration affected by DC bias has been studied combined with transformer core and winding vibration mechanism use multi-physical field simulation software COMSOL in this paper. Furthermore the coupling model of electromagnetic-structural force field has been established, and the variation pattern of inner flux density, distribution of mechanical stress, tension and displacement were analyzed based on the coupling model. Finally, an experiment platform has been built up which was employed to verify the correctness of model.
Keywords
Multi-physical field simulation in COMSOL; Electromagnetic-structural force field coupling; DC bias transformer vibration;
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Times Cited By KSCI : 6  (Citation Analysis)
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