说明：  所建立的无刷直流电动机系统的Simulink仿真模型图，功能模块包括：逆变器模块、电源模块、换相逻辑模块、PWM信号产生模块、电动机本体模块、转速测量模块和磁极位置测量模块。
(Established by the brushless DC motor system Simulink simulation model, and functional modules including: inverter module, power module, commutation logic, PWM signal generation module, motor body module, measuring module and the pole position speed measurement modules.)