Research on the Analysis and Suppression Method of Shaded Pole-Motor Torque Ripple
Feng Hao, Zhao Hao2,3, Xu Wenbing1
1. Automation College of Hangzhou Dianzi University Hangzhou 310018 China; 2. Nanhu College of Jiaxing University Jiaxing 314001 China; 3. Information Engineering College of Zhejiang University of Technology Hangzhou 310023 China
Abstract：Utilizing double-revolving-field theory, we studied the magnetic potential induced by shaded-pole motor's stator and formulated equivalent circuit of the motor. Deduction of arithmetic expression of the air-gapped revolving magnetic field and rotor current led to the arithmetic expression of motor electromagnetic torque. The result indicated that second harmonic generation vibration torque component was part of the electromagnetic torque. The theory above was then validated through measuring the actual torque ripple of the shaded-pole motor. In accordance with the originating mechanism and alteration pattern of shaded-pole motor torque ripple, a new suppression method based on peak-valley complementarity principle was proposed, and a low torque ripple shaded-pole motor was presented. Lastly, A testing platform was built to measure the torque ripple of the motor, and we eventually proved that the second harmonic generation vibration torque component was moderately suppressed. Thus the plausibility of this method was validated.
冯浩, 赵浩, 徐文兵. 罩极式电动机转矩波动分析与抑制方法研究[J]. 电工技术学报, 2017, 32(17): 144-155.
Feng Hao, Zhao Hao, Xu Wenbing. Research on the Analysis and Suppression Method of Shaded Pole-Motor Torque Ripple. Transactions of China Electrotechnical Society, 2017, 32(17): 144-155.
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2017, Vol. 32 
