The Crane Regulating System Research Based on State Observer

Aiming at the problem that the weight´s sway influences production efficiency when crane works, the analyzing method of state-space was adopted to construct the crane system´s model. With output variables, the state observer was established so that state variables of the crane system were reconstructed. The poles of observer were assigned at locations which could keep away far from the left side of dominant poles, which can accelerate the system´s response speed of the observer. Meanwhile, with state feeding-back matrix, state variables of observer were feed back to input side so regulating system was structured. The experiment result has shown that the reconstructed system has better static and dynamic characteristics and could satisfy the demand of engineering.