摘要
针对某款振动切片机对直流电机的控制要求,提出了一种基于AT91SAM7X128单片机的直流电机调速系统及其PID参数的整定方法。该调速系统由单片机、电机驱动芯片HIP4082IBZ、光电编码器组成,构成一个闭环系统;PID参数的整定,是PC端软件通过串口接收单片机发送的电机转速数据,画出曲线图,并实时刷新,若得到满意的曲线图则采用相应的PID参数。经实际调试,该方法能得到合适的PID参数,运用于调速系统,电机在各个速度档位均能平稳运行,达到了预期的控制效果。
A system based on the MCU AT91SAM7X128 to control motor speed is proposed for the control of DC motor of the vibration slicer,and the regulation of appropriate PID parameters is presented. This control system contains the MCU,the motor driver chip HIP4082 IBZ and the encoder,all of which form a closed loop. The PC tool gets the motor data from MCU via the RS232 cable and draws the graph with real-time refresh. If the graph is satisfied,the PID parameter is what we need. Tests show that this regulation method is effective in obtaining the satisfied PID parameter and that the DC motor can smoothly run in any speed.
出处
《电子科技》
2016年第5期153-157,共5页
Electronic Science and Technology
