A Disturbance Observer-Based Fractional-Order Fixed-Time Sliding Mode Control Approach for Elevators

被引:1
|
作者
Sun, Zhe [1 ]
Liu, Huaqing [1 ]
Li, Ke [2 ,3 ]
Su, Wanbin [4 ]
Jiang, Yefeng [4 ]
Chen, Bo [1 ]
机构
[1] Zhejiang Univ Technol, Coll Informat Engn, Hangzhou 310000, Peoples R China
[2] Zhejiang Acad Special Equipment Sci, Hangzhou 310009, Peoples R China
[3] Key Lab Special Equipment Safety Testing Technol Z, Hangzhou 310016, Peoples R China
[4] Jiaxing Special Equipment Inspect & Testing Inst, Jiaxing 314050, Peoples R China
基金
中国国家自然科学基金;
关键词
elevator speed control; fractional-order sliding mode; fixed-time convergence; adaptive observer; SYNCHRONOUS MOTORS; TRACKING CONTROL; CONTROL SCHEME; DESIGN;
D O I
10.3390/act13110438
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
For elevators, appropriate speed control is pivotal for ensuring the safety and comfort of passengers and optimizing energy efficiency, system stability, and service life. Therefore, the design and implementation of effective speed control strategies are crucial for the operation and management of modern elevator systems. In response to this issue, this paper establishes a dynamic model of an elevator through mechanism analysis. Then, a novel fractional-order sliding mode control strategy with the assistance of a fixed-time adaptive sliding mode observer is proposed. The designed observer can effectively monitor and counteract external perturbations, thereby enhancing the stability and precision of the control system. The fractional-order sliding mode controller can realize a fixed-time convergence property, which is rigorously proven in the sense of Lyapunov. Finally, the effectiveness and superiority of the control scheme are validated by simulations compared with benchmark controllers.
引用
收藏
页数:20
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