Modelling And Simulation of a Field-Oriented Controlled Hybrid Stepper Motor Using Self Tuning Fuzzy-Pid Controller
Abstract
This study presents a field-oriented control (FOC) scheme for a two-phase Hybrid Stepper Motor (HSM) using a selftuning fuzzy-PID controller. A MATLAB/SIMULINK model is developed to analyze the transient performance of the HSM. The drive system consists of an H-bridge PWM inverter, hysteresis current controller, PID controller, Park transformation block, and HSM subsystems.The self-tuning fuzzy-PID controller regulates the HSM speed, while the hysteresis current controller manages phase currents. Simulation results verify the proposed FOC drive model's effectiveness, demonstrating fast dynamic performance in both transient and steady-state operation with a 0.1 Nm load. The HSM model ST601 exhibits precise positioning and speed control.