Synchronous Optimal Torque PWM with Low Torque Ripple under Low Carrier Ratio

Zhihao Song,Wenxi Yao, Senqing Zhuo,Wuhua Li

2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)（2021）

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摘要

High speed permanent magnet synchronous motors (HSPMSMs) are gaining more attention due to their appearing features such as high power density, high efficiency and wide speed range. However, the carrier ratio of switching frequency over HSPMSM operating frequency is relatively low and even less than 10. It causes large torque ripple, which reduces the performance and even lifetime of HSPMSM. Since...

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关键词

low carrier ratio,torque ripple,SOTP

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