摘要
通过对无刷直流电动机(BLDCM)数学模型的分析,建立了BLDCM的动态仿真模型,确定了调速控制系统的结构。利用MATLAB 7.0/Simulink仿真软件,对BLDCM及其双闭环调速控制系统的阶跃响应进行了仿真。仿真结果表明:BLDCM的机械特性较软,但当其采用了转速、电流双闭环调速控制系统后,电机的机械特性得到了明显改善;另外,它还具有响应快、控制精度高、抗干扰能力强等特点,可满足电动汽车驱动的要求。试验结果与理论分析相一致。
The dynamic simulating model of brushless DC motor(BLDCM) was established,and its structure of adjust speed control system was confirmed by analyzing its mathematic model,so it simulates the response wave of step input signal of BLDCM and its double closed-loop adjust speed control system using MATLAB 7.0/Simulink.The simulation shows that the mechanical characteristic of BLDCM is soft,but it is improved after using double closed-loop adjust speed control system.On the side its output speed follows input si...
出处
《电机与控制应用》
北大核心
2009年第1期16-19,36,共5页
Electric machines & control application
关键词
无刷直流电动机
电动汽车驱动
控制系统
仿真
brushless DC motor（BLDCM）
electric vehicle（EV） drives
control system
simulation
