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AN2757 Sensored (Encoder-Based) Field Oriented Control ofThree-Phase Permanent Magnet Synchronous Motor(PMSM)IntroductionThe Permanent Magnet Synchronous Motor (PMSM) is widely used in various industries due to its highpower density, smaller size, and higher efficiency. For applications which require fast dynamic responsefor speed and torque changes, sophisticated Control techniques, such as Field Oriented Control (FOC)are required. Speed sensor-based FOC is useful for avoiding Control inaccuracies, which may arise insensorless Control due to variation in physical parameters of the motor, which happens because oftemperature variation and aging. However, such applications must have the provision to mount the speedsensor like an incremental encoder. This document describes the implementation of an encoder-basedsensored FOC algorithm for Three -phase PMSM using Microchip Technology s 32-bit MCUs.
power density, smaller size, and higher efficiency. For applications which require fast dynamic response for speed and torque changes, sophisticated control techniques, such as Field Oriented Control (FOC) are required. Speed sensor-based FOC is useful for avoiding control inaccuracies, which may arise in
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