Abstract：To realize the function that the field and torque can be controlled directly, a novel direct field and direct torque control strategy used in six-phase induction motor with special phase current waveform is proposed and evaluated. Firstly, the electromagnetic torque is calculated by theoretical and finite element analysis. Secondly, the analysical results are verified by practical experiment. The dominant merit of the proposed control strategy is that the flux and torque of the induction motor are directly controlled as compared to vector control that uses Park transformation theory. Another merit is that with stator winding layout, a nearly square, smooth rotating flux density in the air gap is generated by using the resultant field currents and the electromagnetic torque can be improved greatly.
艾永乐, 王玉梅. 基于梯形波相电流驱动的六相交流感应电动机性能[J]. 电工技术学报, 2009, 24(9): 59-63.
Ai Yongle, Wang Yumei, Kamper Marrten. Performance of Six-Phase Induction Motor With Trapezia Phase Current Waveforms. Transactions of China Electrotechnical Society, 2009, 24(9): 59-63.
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2009, Vol. 24 
