| Abstract |
The rotor position sensor is required to control Permanent Magnet Synchronous Motor (PMSM).However, the rotor position sensor, for example, Resolvers or Pulse Generator (PG) have somedisadvantages which are an increase of total volume of the motor, fault of power supply lines andsignal lines of these sensors, and maintenance. To overcome these difficulties, sensorless controlmethods have been developed. From standstill, sensorless drive method for saliency PMSMs has beenalready proposed [1]-[5]. However, audible noise occurs by supply.In this paper, we achieve sensorless drive for PMSM using the PWM generation method which usedthree symmetrical carriers. We verify that proposed method has low audible noise and a high response. |
