Nonlinear Disturbance Observer Backstepping Control for Electric Dynamic Load Simulator. (November 2020)

• Record Type: Journal Article
• Authors: Zheng, Yanbin; Yu, Zhenglin; Ma, Guo Qing
• Is Part Of: Journal of physics. Volume 1676(2020)
• Publication Date: 2020-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1676/1/012182
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Electric dynamic load simulator (EDLS) is an experimental device that can simulate the load torque of aircraft steering gear under indoor environment. It has the advantages of high loading accuracy, small inertia, quick response and easy operation. There are time-varying parameters and redundant torque disturbance in the EDLS, so the conventional control algorithm cannot get the ideal control effect. In this paper, a controller based on matching uncertain nonlinear system is proposed based on the idea of backstepping control. Lyapunov method is used to prove the asymptotic stability of the closed-loop system. At the same time, the nonlinear disturbance observer is used to reduce the vibration of the controller. Experimental results show the effectiveness of the proposed control strategy.