PID adjustment method based on slider position data of automatic winding of wire winding machine

Abstract

This invention relates to the field of PID control technology and discloses a PID adjustment method based on the slider position data of an automatic winding machine. The method includes: first, acquiring the spindle angular velocity and two-way lateral movement time of the winding machine, and calculating the lateral movement to rotation ratio; then, rationally approximating this ratio to obtain a target rational number, and combining dual-frequency correlation parameters and sampling period to obtain the discrete hysteresis; further, acquiring the slider position reference signal and the actual signal to generate a position error sequence, and performing normalized autocorrelation calculation under the discrete hysteresis to obtain a characteristic quantity; then, statistically analyzing the characteristic quantity to form an entry threshold and an exit threshold; dynamically scheduling the proportional, integral, and derivative adjustment parameters and the integral state based on the comparison results of the characteristic quantity and the thresholds; finally, calculating and outputting the control quantity using the scheduled proportional, integral, and derivative adjustment parameters and the integral state to drive the slider position of the winding machine to achieve precise automatic adjustment.

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