Research on optimal fast terminal sliding mode control of horizontal vibration of high-speed elevator car system

被引:1
作者
Li, Hua [1 ]
He, Qin [1 ]
Li, Li [1 ]
Liu, Lixin [2 ]
机构
[1] Shandong Jianzhu Univ, Sch Mech & Elect Engn, Jinan, Peoples R China
[2] Shandong Fuji Zhiyu Elevator Co Ltd, Dezhou, Peoples R China
关键词
high-speed elevator; car system; horizontal vibration; terminal sliding mode; random weighted particle swarm algorithm; GUIDE SHOE;
D O I
10.1139/tcsme-2023-0055
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
An optimal fast terminal sliding mode control strategy is proposed to suppress effectively the horizontal vibration of the highspeed elevator car system caused by uncertainties such as rail unevenness, elevator load variation, and component friction and wear. Firstly, considering the elevator's composition structure and vibration characteristics, a 4-degree-of-freedom car system horizontal vibration active control model with a symmetric distribution of the control center is established. Secondly, considering the nonlinear factors of the rolling guide shoe and the external excitation, an optimal fast terminal sliding mode controller (PFTSMC) based on the sliding mode variable structure control is designed to eliminate the horizontal vibration of the car, define the non-singular terminal sliding mode surface, and introduce the fast terminal convergence law based on the fast terminal attractor to ensure the accessibility of the sliding mode motion and reduce the jitter vibration. In addition, the use of Random Weighted Particle Swarm Optimization (RW-PSO) algorithm to optimize the parameters of the controller improves its vibration suppression ability and robustness. Finally, the proposed controller can achieve more than 51.2% attenuation of horizontal vibration acceleration and displacement, showing that PFTSMC can effectively reduce the horizontal vibration of high-speed elevator car systems and improve ride comfort.
引用
收藏
页码:183 / 202
页数:20
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