罩极式电动机转矩波动分析与抑制方法研究

发布时间：2018-05-04 00:21

本文选题：罩极式电动机 + 双旋转磁场理论　；参考：《电工技术学报》2017年17期

【摘要】：采用双旋转磁场理论对罩极式电动机定子产生的磁动势进行分析,得到了罩极式电动机的等效电路;推导了气隙旋转磁场和转子电流的数学表达式,进而得到了电动机电磁转矩的数学表达式,结果表明电磁转矩中包含二倍频振动转矩分量。对罩极式电动机的实际转矩波动进行了检测,验证了上述理论的正确性。根据罩极式电动机转矩波动的产生机理和变化规律,提出了一种基于峰谷互补原理的转矩波动抑制方法,研制出了低转矩波动罩极式电动机样机。最后搭建实验平台对电动机样机的转矩波动进行了测试,结果表明其二倍频振动转矩分量能够得到有效消减,验证了所提出的抑制方法的科学性。
[Abstract]:Based on the theory of double rotating magnetic field, the magnetodynamic force generated by the stator of the mask pole motor is analyzed, and the equivalent circuit of the cover pole motor is obtained, and the mathematical expressions of the air gap rotating magnetic field and the rotor current are derived. The mathematical expression of the electromagnetic torque of the motor is obtained, and the results show that the electromagnetic torque contains the second harmonic vibration torque component. The actual torque ripple of the pole-type motor is tested, and the correctness of the theory is verified. According to the mechanism of torque ripple and its variation law, a torque ripple suppression method based on peak-valley complementary principle is proposed, and a prototype of low torque ripple mask motor is developed. Finally, an experimental platform is built to test the torque ripple of the motor prototype. The results show that the torque component of the double frequency vibration can be effectively reduced, and the proposed method is proved to be scientific.
【作者单位】：杭州电子科技大学自动化学院;嘉兴学院南湖学院;浙江工业大学信息工程学院;
【基金】：国家自然科学基金(51541507) 浙江省自然科学基金(LQ14E050007)资助项目
【分类号】：TM343.1

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