Experimental Evaluation of Predictive Torque Control of IPMSM under Speed Sensor and Sensorless Extended EMF Method

This study investigates the impact of position information on torque performance for an interior permanent magnet synchronous motor (IPMSM) driven by finite set–predictive control (FS-PTC). Unlike induction machines, IPMSMs are significantly sensitive to rotor during operation owing rotor. Any misalignment or displacement frame (d-q) can lead poor prediction drive because predictive requires speed/position and evaluation cost function. Hence, FS-PTC, which uses a speed encoder senseless extended electromotive force (EMF) estimation, is evaluated compared with respect load conditions. Based investigation, sensorless FS-PTC using EMF method has superior THD reduction measured speed-based PTC, particularly under large torque. The IPMSM was carried out through experimental results.