Smooth and Fast Mode Transition of Synchronous Optimal Modulation for Two-Level Inverter Fed High-Speed PMSM Drives

Shangjian Dai,Jiabin Wang,Zhigang Sun,Ellis Chong

2021 IEEE International Electric Machines & Drives Conference (IEMDC)（2021）

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摘要

Synchronous optimal modulation (SOM) can minimize current distortions for high-speed permanent magnet synchronous machine (PMSM) drives when the ratio of switching frequency to fundamental frequency (SFR), also known as pulse number is limited. However, the mode transition associated with changes in pulse number or pulse pattern can cause large transient overshoots of current. To solve this proble...

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关键词

High-speed permanent magnet synchronous machines,low switching-to-fundamental frequency ratio,low pulse number,optimal pulse pattern,optimal switching vector pattern,optimal flux trajectory,mode transition,synchronous optimal modulation

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