摘要
针对现有的磁悬浮电机位移控制响应速度过慢且过载保护有缺陷的问题,设计一种基于MM32的双闭环控制系统以实现转子位移的快速控制和过载保护。以电涡流传感器对转子位置进行实时检测,结合双闭环PID控制算法,通过隔离驱动芯片UCC27714DR对控制器的输出电流进行控制,从而实现转子在平衡位置的运转和过载时的保护。实验结果表明:电机转速发生改变,控制系统在0.1 s内改变输出电流的大小使其维持平稳运转;过载时使电机以较低速度停止运转,减小过载损害。
Aiming at the problem that the response speed of the displacement control of the existing magnetic levitation motor is too slow and its overload protection is defective,a displacement control system based on the eddy current sensor was designed.Taking the MM32 single-chip microcomputer as the controller,the offset signal of the motor rotor was obtained through the eddy current sensor.After the double closed-loop PID control processing,the controller sent an electrical signal to change the output current of the control circuit to make the motor rotor return to the equilibrium position for stable operation.The experimental results show that when the motor speed changes,the control system can change the output current within 0.1 s to keep it running smoothly,and the motor stops running at a lower speed to reduce overload damage when overloaded.
作者
饶刚
张自缘
RAO Gang;ZHANG Ziyuan(Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering,Wuhan University of Science and Technology,Wuhan Hubei 430081,China;Precision Manufacturing Institute,Wuhan University of Science and Technology,Wuhan Hubei 430081,China)
出处
《机床与液压》
北大核心
2023年第16期90-94,共5页
Machine Tool & Hydraulics
基金
国家重点研发计划资助项目(2017YFF0210701-3)。
