Simulation of Brushless DC Motor Control

Resource Overview

Simulation of brushless DC motor control using dual-loop control strategy: outer speed loop and inner current loop. The bldcm1 file contains a custom-built motor model, while bldcm2 utilizes MATLAB's built-in motor model for comprehensive performance comparison.

Detailed Documentation

Before initiating the simulation of brushless DC motor control, it is essential to understand the dual-loop control concept. This control architecture employs an outer speed loop and an inner current loop, enabling precise motor operation management. For simulation implementation, two key files are required: bldcm1 and bldcm2. The bldcm1 file incorporates our custom-developed brushless motor model with configurable parameters, while bldcm2 leverages MATLAB's pre-configured motor model from its Simulink library. Both files are crucial as they provide distinct datasets and modeling approaches, facilitating comprehensive motor behavior analysis. During simulation, parameters can be fine-tuned using PID controller adjustments in both loops to optimize speed regulation and current limitation. The simulation process involves implementing Clarke/Park transformations for field-oriented control and PWM generation algorithms for inverter driving. This systematic approach provides valuable insights into brushless DC motor control methodologies, serving as essential preparation for practical applications and real-world implementation challenges.