Loop control method, system and equipment for preventing strip steel from deviating and medium

The invention discloses a loop control method, system, equipment and medium for preventing strip steel from deviating, which comprises the following steps of: adopting a mode of adding a middle section control strategy, namely, in the first stage, selecting the middle position of a loop as a target position for filling the loop until the loop reaches the set middle position; and in the second stage, the set value of the sleeve filling target position is automatically switched to the original value until the sleeve is filled. Due to the fact that the sleeve filling target position is set twice, the deviation between the loop trolley position control set value and the actual position is small, the loop position is selected to calculate the amplitude limiting speed, and a loop winch carries out sleeve filling according to the small set speed under the speed limitation. While the loop buffering effect is achieved, it is guaranteed that the speed of a process section is constant, the strip steel operation stabilit