Design of Brushless DC (BLDC) Motor Speed Control System Using Field Oriented Control (FOC) Method

Abstract

Research on environmentally friendly vehicles has highlighted Electric Vehicles (EVs), which utilize electric motors for propulsion. This study focuses on controlling a Brushless DC (BLDC) motor, a prevalent motor type in EVs, using the Field Oriented Control (FOC) method. The research aims to design and analyze the performance of this FOC-based speed control system. The system model and its control strategy were simulated in MATLAB/Simulink. Performance was evaluated under various speed setpoints (100, 200, and 300 rpm) and torque loads (2, 4, and 7 N.m). The results demonstrate that the proposed control system operates effectively, maintaining a steady-state error of less than 5% across all test conditions. Furthermore, all other performance parameters also remained below 5%, confirming the system's robustness and precision in regulating BLDC motor speed.