Operating performances analysis of brushless doubly-fed machine using magnetic equivalent circuit

Publication Type:
Journal Article
Citation:
Dianji yu Kongzhi Xuebao/Electric Machines and Control, 2019, 23, (1), pp. 27-34
Issue Date:
2019-01-01
Full metadata record
© 2019, Harbin University of Science and Technology Publication. All right reserved. There are few effective tools to quickly and correctly analyze the operating performances of Brushless Doubly-Fed Machine (BDFM) due to its special structure and complex magnetic field modulation mechanism. Based on the basic concept of Magnetic Equivalent Circuit (MEC), this paper described the method for establishing the MEC model of BDFM with cage rotor, considering the effects of special structure of BDFM, core saturation and rotor revolution. Furthermore, a dynamic MEC model of a prototype with cage rotor was built up and solved by the mesh method. And then, the operating performances of the prototype under different operating conditions were obtained and analyzed. Finally, the results of dynamic MEC model were compared with those of Finite Element Analysis (FEA) and experiment data. The results show that the dynamic MEC model can correctly predict the operating performances of BDFM with cage rotor and is much faster than FEA. This work can broaden the research thought for analyzing the operating performances of BDFM of cage rotor.
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