基于增量式PID算法的直流电机调速系统
发布时间：2018-11-03 07:34
【摘要】：设计了一种基于增量式PID算法的直流电机调速系统,主要由单片机最小系统、液晶显示、矩阵键盘和直流电机驱动电路等组成。系统以单片机AT89S52为控制核心,由定时器模拟产生PWM(脉冲宽度调制)来实现对直流电机的速度调节。目标转速值由矩阵键盘输入后,通过AT89S52内部的增量式PID算法来调节PWM的占空比,实现对电机速度的调节,最终达到目标转速值并保持不变。同时液晶显示屏能够实时显示当前实际转速值、目标转速值以及速度随时间变化的曲线。实际测试表明系统能实现直流电机的加速、减速功能,且在20 s内自动达到设定的目标转速值,多数测量误差保持在±1以内,能达到工业控制领域要求。
[Abstract]:A DC motor speed regulation system based on incremental PID algorithm is designed, which is composed of single chip microcomputer minimum system, liquid crystal display, matrix keyboard and DC motor drive circuit. The system takes AT89S52 as the control core and generates PWM (Pulse width Modulation) by the timer to realize the speed regulation of DC motor. After the target speed is input by the matrix keyboard, the PWM duty cycle is adjusted by the incremental PID algorithm inside the AT89S52, and the motor speed is adjusted, finally the target speed value is achieved and kept unchanged. At the same time, the liquid crystal display can display the curves of the actual speed, target speed and speed with time in real time. The actual test shows that the system can realize the acceleration and deceleration function of DC motor, and can automatically reach the target speed value within 20 seconds, and most of the measurement errors are kept within 卤1, which can meet the requirements of industrial control field.
【作者单位】： 长江大学工程技术学院;长江大学;
【分类号】：TM33;TP273
本文编号：2307125
[Abstract]:A DC motor speed regulation system based on incremental PID algorithm is designed, which is composed of single chip microcomputer minimum system, liquid crystal display, matrix keyboard and DC motor drive circuit. The system takes AT89S52 as the control core and generates PWM (Pulse width Modulation) by the timer to realize the speed regulation of DC motor. After the target speed is input by the matrix keyboard, the PWM duty cycle is adjusted by the incremental PID algorithm inside the AT89S52, and the motor speed is adjusted, finally the target speed value is achieved and kept unchanged. At the same time, the liquid crystal display can display the curves of the actual speed, target speed and speed with time in real time. The actual test shows that the system can realize the acceleration and deceleration function of DC motor, and can automatically reach the target speed value within 20 seconds, and most of the measurement errors are kept within 卤1, which can meet the requirements of industrial control field.
【作者单位】： 长江大学工程技术学院;长江大学;
【分类号】：TM33;TP273
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