Open AccessNonlinear Disturbance Observer Backstepping Control for Electric Dynamic Load Simulator
Author(s) -
Yongjun Zheng,
Zhi Yu,
Qing Guo
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012182
Subject(s) - control theory (sociology) , backstepping , nonlinear system , inertia , controller (irrigation) , computer science , torque , observer (physics) , lyapunov function , lyapunov stability , control engineering , engineering , control (management) , adaptive control , physics , quantum mechanics , classical mechanics , artificial intelligence , agronomy , biology , thermodynamics
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.