基于Matlab的无刷直流电动机驱动系统仿真建模

Simulation Model of Brushless DC Motor Drive System Based on Matlab

基于Matlab/Simulink工具搭建无刷直流电机驱动系统仿真平台,分别建立直流无刷电机的本体模型和驱动控制模型,详细介绍了系统中各个子模块的搭建方式和实际功能,为分析驱动控制算法和策略可行性提供有效的仿真环境。通过实验仿真曲线特征和变化规律,实现了驱动系统各项性能评价指标和PID参数整定的验证,模型参数也为实际电机控制系统的设计和调试提供支撑。系统模型具有很好的灵活性和通用性,在此基础上通过简单的替换和修改就可以搭建和仿真使用其他控制算法和控制策略的仿真模型,为模糊控制、模糊PID控制和再生制动控制策略建立仿真环境提供参考,减少验证过程中的工作量。

Simulation platform of Brushless DC motor drive system is established based on Matlab/Simulink. The ontology model and drive control model of DC brushless DC motor are set up, and the construction methods and practical functions of each sub module are introduced in detaitwhich provide the simulation environment to analyse the drive control strategy, and algorithm feasibility effectively. Based on the characteristic and variation law of simulation curve, the performance of the evaluation index system and the setting of PID parameter validation are texted, besidesm, the design and debugging of the actual motor control system are supported by the model parameters. On this basis, through simple modifications or replacement, the simulation model which can use other control algorithms and control strategies are built and it can provide a reference for fuzzy control, fuzzy PID control and regenerative braking control strategy in simulation environment to reduce the workload of the process validation.