Design, Analysis and Optimization of Electrical Machines and Drives for Electric Vehicles.

A capacitor voltage offset suppression method based on reference voltage self-correction for a three-phase four-switch (TPFS) inverter-fed permanent magnet synchronous motor (PMSM) drive system to improve motor control performance was proposed in [[7]]. Electrical machines are the key components in the ongoing energy transition and electrification and will be an integral part of people's lives in a future low-carbon society. In [[11]], the back electromotive force (EMF) waveforms of a flux-switching permanent magnet (FSPM) machine and a variable flux memory permanent magnet (VFMPM) machine with the same main dimension were researched. In this method, firstly, the -axis reference voltage deviation caused by the capacitor voltage offset was analyzed, and the relationship between the voltage to be compensated and the offset was obtained. [Extracted from the article]