Control system for direct torque controlled and field-oriented controlled drives of permanent magnet synchronous motor

Abstract

This paper delves into the critical aspect of component selection in designing control systems for field-oriented control (FOC) and direct torque control (DTC) of three-phase permanent magnet synchronous motors (PMSMs). The chosen components significantly influence the performance, efficiency, and reliability of these control systems. Key components include high-speed digital signal processors (DSPs) and microcontrollers (MCUs) for executing complex FOC and DTC algorithms in real-time. Besides that, the selection of insulated-gate bipolar transistors (IGBTs) and metal-oxide-semiconductor field-effect transistors (MOSFETs) is handled according to voltage and switching frequency requirements. Power diodes are crucial for protection against reverse currents, and sensors for current feedback are essential for precise control. Rotor position sensors are particularly vital for both the FOC and the DTC method to ensure accuracy of motor control applications. Further exploration of these component selections and their impact on FOC and DTC systems will provide valuable insights into the design considerations for motor control.