The PMSM rotor magnet polarity is first identified using the proposed intelligent approach.Then it is smoothly started in synchronous motor mode in unidirection.

• 永磁同步马达转子之磁极位置先由所提之智慧型策略侦测判定，然后设定电流控制脉宽调变机构之启始相位，使PMSM以同步马达模式非反向起动。