Abstract：In this paper, the influence of structure of concentrated winding on suspension performance is studied at a bearingless consequent-pole permanent magnet motor with 12 slots and 8 poles. Improved concentrated suspension winding structures and the related optimization methods have been studied. Firstly, the reason that a strong coupling exists between radial degrees of freedom is analyzed in two-phase and three-phase conventional concentrated windings. Then, based on the structure of a three-phase improved concentrated suspension winding with sub-coils, a two-phase improved concentrated suspension winding with sub-coils is proposed. To optimize the two types of improved concentrated suspension windings, the optimization method based on suspension force expressions is presented. However, due to its complicated optimization process, a new and simple optimization method based on minimization of total harmonic distortion of suspension magnetic motive force is proposed. Finally, two optimization methods are applied to optimize the two-phase and three-phase improved concentrated suspension windings. Case study verifies the two methods.
丁强, 邓智泉, 王晓琳. 无轴承交替极永磁电机集中式悬浮绕组结构及其优化设计方法[J]. 电工技术学报, 2015, 30(18): 104-111.
Ding Qiang, Deng Zhiquan, Wang Xiaolin. Structure of Concentrated Suspension Windings and Its Optimization Design Methods of Bearingless Consequent-Pole Permanent Magnet Motor. Transactions of China Electrotechnical Society, 2015, 30(18): 104-111.
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2015, Vol. 30 
