基于STM32远程电机调速系统设计.docx

PAGE  诚 信 承 诺 我谨在此承诺：本人所写的毕业论文《基于STM32的远程电机调速系统设计》均系本人独立完成，没有抄袭行为，凡涉及其他作者的观点和材料，均作了注释，若有不实，后果由本人承担。 承诺人（签名）： 年 月 日 基于STM32的远程电机调速系统设计 摘要：在各类机电设备中,直流电动机以其良好的调速特性、启动和制动性能优越操纵方便，响应速度快，输出转矩稳定一直来都处于主要地位，随着数字技术的发展和算法的突破，模拟控制正在退出舞台，而且直流电机的控制与调速更加多样化，如目前主流的PID算法和PI算法，通过单片机的高速运算和算法的结合，达到模拟控制的要求，并且可以通过外部传感器来修正参数提高稳定性，而且整定也更加方便。由于现在更重视系统协调所以也可以利用单片机的易交互性来实现各个系统之间的交互，使控制更加合理，大大提高系统的工作效率。本设计基于STM32C8T6处理器，结合PI算法来实现无差闭环调速，并且通过485总线与上位机交互，上位机配备一块1602液晶和矩阵键盘，可以实时进行转速显示和转速调节，下位机方面使用的是TB6612进行PWM脉宽调制，和霍尔传感器进行转速测量，该系统控制精确度高，具有高的稳定性和较强的交互性。 关键词：485通信；PWM脉冲；STM32；无差调节；PI算法 Based on the STM32 remote motor speed control system design Abstract：In all kinds of electromechanical equipment, DC motor is in the main status ,because of the good speed regulation characteristic, excellent starting and braking performance , simple operation , fast speed of response and stability of output torque. With the development of digital technique and breakthrough of the algorithm, analog control is quitting the stage, the dc motor control and speed regulate are becoming diversified, such as the PID algorithm and PI algorithm, through the combination of MCU high speed computing and algorithm, to achieve the requirement of the analog control, and improve the stability by external sensors adjusting parameters, and setting become more convenient. Because system coordination is more important than before ,we can also use the easy interactivity of single chip to realize the interaction between various systems, make the control more reasonable, improve the work efficiency of the system greatly. This design based on STM32C8T6 digital processor ,use the PI algorithm to realize closed loop speed regulation, interact through 485 bus and PC, PC equipped with a matrix keyboard and 1602 LCD , can achieve speed display and speed adjustment at the time, lower machine uses the TB6612 for pulse width modulation, and hall sensor for speed measuremen