中文说明：直流马达数学模型，包括三个不同的模型文件，以及相应的PID速度控制、位置控制的Matlab 演示文件-DC motor mathematical model, including the three different models of documents, and the corresponding PID speed control, position control of the Matlab demo files
English Description：
DC motor mathematical model, including the three different models of documents, and the corresponding PID speed control, position control of the Matlab demo files