Sensorless Controlling of the Permanent Magnet Synchronous Motor using Space vector Control with Measurement Vector Insertion

The surface-mounted permanent magnet synchronous motors (SPMSM) are the first preference of the designers for the industrial applications because of its high efficiency and better torque to current ratio. Now as for as the controlling is concern the measurement of speed and rotor positions are generally performed by sensors but the involvement of the sensors increases the cost and reduces the roughness of the motor it also increases the maintenance. Because of these reasons the sensor-less controlling of the motor is a field of intensive and demanding research. In this paper we are presenting the space vector based controlling of the SPMSM which involves the measurement vectors [1] and the presented controlling system. The measurement vector technique reduces the distortion of the measured current hence improves the efficiency of the controlling system.