Abstract:This paper studies the sensorless interior permanent magnet synchronous motor (IPMSM) vector control strategy which is based on the EMF sliding-mode observer. As parameters selected for the position observer are obtained mostly by experimental adjustment, a phase locked loop (PLL) parameters design method based on the expected position estimation error is present. To improve the operation efficiency, a maximum torque per ampere (MTPA) control strategy based on current vector angle online tuning is introduced. … Show more
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