Brushless DC Motor MATLAB Simulation Model with Dual-Loop Control

This paper presents a MATLAB simulation model for brushless DC motors (BLDC) based on dual-loop control architecture. Brushless DC motors are highly efficient, low-noise, and long-lasting electrical machines widely used in industrial automation, household appliances, and electric vehicles. The simulation model enables engineers to better understand BLDC motor operational principles, optimize control algorithms, and enhance motor performance and efficiency. The implementation includes key MATLAB functions for modeling the electromagnetic system, power electronics converter, and control loops. The controller structure typically features an outer speed loop using PI control and an inner current loop for torque regulation, implemented through Simulink blocks representing PWM generation, commutation logic, and sensor interfaces. Additionally, the paper provides a concise introduction to the fundamental structure, characteristics, and applications of brushless DC motors to give readers comprehensive knowledge about this motor technology.