基于MatlabGUI的直流电机PID调速系统的设计

基于MatlabGUI（图形用户界面）设计了一种以单片机为控制核心的直流电机PID调速系统。利用GUI作为上位机对单片机采集的信息进行处理，实现电机转速的波形显示、存储、PID控制等功能。由于该系统的PWM信号由专门PWM芯片产生，因此降低了单片机程序的复杂程度，提高了系统的可靠性和控制精度。实验结果表明，该系统运行稳定，界面的人机交互性好，操作简单方便。在对PID参数的选定中可提高对PID算法和电机性能的直观认识，对自动控制、电机拖动等研究领域具有一定的现实意义．

Design of PID control system based on Matlab GUI for DC motor

Based on Matlab GUI （graphical user interface）, a PID control system of DC motor with MCU as the core is de- signed. Using Matlab GUI as the upper computer to process the collected information, the system realizes the motor speed＇s wave- fin＇m display, storage, PID control and other functions. Because of the PWM signal of the system is produced by special PWM chip, the complexity 9f the MCU program has been reduced, and the reliability and control accuracy of the system has been im- proved. The experimental results show that the system runs steadily, has fine interface of human-computer interaction, and operates simply. It can make users improve their intuitive understanding of PID algorithm and the performance of motor in selecting the PID parameters, has a certain practical significance in the field of automatic control, motor and so on.