Anti-swing control of overhead crane based on double fuzzy controllers

Eliminating and controlling the swing of the crane are very important for increasing the work efficiency, decreasing hazard during loading and unloading operation. By the analysis of the simulation of the two-dimensional motion of overhead crane model, this paper obtained the basic domains of the displacement and tilt angle, applied the fuzzy control principle to ensure the structure of fuzzy control, design the membership functions of the input and output variables, and build the fuzzy controllers. The result of the simulation show that the design of the fuzzy controllers have a good performance which effectively inhibits the hoisting swing and make the car arrive at its destination accurately and it also has a strong anti-interference ability.