PI-Tuned Direct Torque Control for Permanent Magnet Synchronous Motors (PMSM)

The core focus of my graduation project is PI-tuned direct torque control for Permanent Magnet Synchronous Motors (PMSM). Using MATLAB R2007a, I developed simulation models and conducted extensive testing. The project involved implementing direct torque control algorithms for PMSM, where I utilized PI tuning methods to optimize system performance through parameter adjustment in the control loops. Key technical components include field-oriented control (FOC) implementation with coordinate transformations and space vector modulation (SVM) techniques for generating PWM signals. The MATLAB/Simulink environment enabled detailed modeling of the PMSM system, incorporating torque and flux estimators, hysteresis controllers, and voltage vector selection logic. Experimental results demonstrate significant improvements in dynamic response and stability, with the control system achieving precise torque regulation and robust performance under varying load conditions. This work provides valuable insights into motor control principles and practical implementation techniques for electrical engineering applications.