Abstract:  Aiming at the problem of low movement accuracy and slow response of the door linkage device due to the non-linear factors in the door linkage device of the lift, a nonlinear controller was designed. The mathematical models of general-purpose inverters and three-phase motors with constant voltage-frequency ratio speed regulation were established, the virtual prototype of the linkage device was built in ADAMS, the control system model of the door linkage device was built in Simulink of MATLAB, and a fuzzy PID controller of the control system model was designed, the electromechanical co-simulation was realized through the Controls interface module of ADAMS and MATLAB. The simulation analysis was carried out for the two working conditions of the linkage device in actual operation, and the simulation results were compared with the traditional PID control results. The research results show that, comparing with the traditional PID controller, the control system using fuzzy PID controller improves the position and velocity control accuracy of the door, the steadystate error of the system is reduced to 2mm in working condition one, and the response speed is increased by 36.4% in working condition two, the fuzzy PID control system can actually meet the control requirements of the landing door linkage device.

Key words:  construction lift; linkage device; electromechanical co-simulation; fuzzy PID

ZHAO Bing-xin, LU Ning, LU Kai-xu, et al. Modeling and simulation of construction lift door linkage device based on fuzzy PID［J］.Journal of Mechanical & Electrical Engineering, 2021,38(8):1038-1044.