说明：  在分析无刷直流电机（BLDC）数学模型的基础上，提出了一种无刷直流电机控制系统仿 真建模的新方法。在Matlab/Simulink环境下，把独立的功能模块和S函数相结合，构建了无刷直流 电机系统的仿真模型。系统采用双闭环控制：速度环采用离散PID控制，根据滞环电流跟踪型PWM 逆变器原理实现电流控制。仿真和试验结果与理论分析一致，验证了该方法的合理性和有效性。 此方法也适用于验证其他控制算法的合理性，为实际电机控制系统的设计和调试提供了新的思路。
(Based on the analysis of the mathematical model of Brushless DC motor (BLDC), a new simulation modeling method for BLDC motor control system is proposed. In the MATLAB / Simulink environment, the simulation model of Brushless DC motor system is constructed by combining the independent function module and s function. The system adopts double closed-loop control: the speed loop adopts discrete PID control, and the current control is realized according to the principle of hysteresis current tracking PWM inverter. The simulation and experimental results are consistent with the theoretical analysis, which verifies the rationality and effectiveness of the method. This method can also be used to verify the rationality of other control algorithms, and provides a new idea for the design and debugging of the actual motor control system.)