Brushless Permanent Magnet DC Motor Model

This document presents a brushless permanent magnet DC motor model designed for flywheel energy storage systems. The model is developed and simulated using MATLAB's Simulink environment, incorporating key components such as three-phase inverter bridges, Hall-effect sensor feedback, and PWM control algorithms. Through this model, we analyze motor performance characteristics including torque-speed relationships, efficiency mapping, and dynamic response during charge/discharge cycles. The implementation features mathematical modeling of electromagnetic fields using Park/Clarke transformations and includes proportional-integral (PI) controllers for precise speed regulation. This simulation framework enables comprehensive study of motor behavior in energy storage applications, facilitating optimization of power conversion efficiency and storage capacity. The model provides valuable insights for future flywheel system design, offering practical references for control strategy development and system integration.