一种电磁摆摆幅和周期的控制方法

One Kind of Control Method About Deflection and Period of Electromagnetic Pendulum

针对2013年全国大学生电子设计竞赛J题要求,设计了一套基于单片机系统的电磁摆运动控制装置。通过控制底端位置对称的两个电磁铁的触发时机和脉冲强度实现了摆幅控制,通过控制摆锤周围磁感应强度实现了摆动周期控制。摆幅控制采用非均匀采样周期的积分分离PID控制算法,周期采用开环控制。实验结果表明,该控制方法取得了良好的稳态和动态性能。

According to the question J of National Undergraduate Electronic Design Contest in 2013, A set of electromagnetic pendulum based on the MCU control system was designed. The maximum deflection of pendulum was controlled by the trigger time and pulse strength of two electromagnets which were installed symmetrically at the bottom side. The period of pendulum was controlled by the magnetic induction around it. The integral separate PID control arithmetic which the sampling period was nonuniform was used in the deflection control, and the period control was an open loop method. The experiment shows that the control method can lead to good steady-state and dynamic state performance.