Control method and device of lifting system and lifting system

The embodiment of the invention is suitable for the technical field of hoists, and provides a control method and device of a hoisting system and the hoisting system. The method comprises the steps of obtaining a first speed error and a speed error change rate of a traction rope at a current moment and each historical speed error of the traction rope at each historical moment; according to the first speed error, the speed error change rate and each historical speed error, determining a first adjustment parameter of the current running speed of the traction rope at the current moment; determining a second adjusting parameter of the current running speed according to the first speed error and the speed error change rate; according to the first adjusting parameter and the second adjusting parameter, a target braking torque is determined, and the disc brake is controlled to output the target braking torque; under the target braking torque, the second speed error of the running speed of the traction rope at the nex