Affiliation:
1. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China
2. Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, Xuzhou, China
Abstract
In this article, the position control problem of electro-hydraulic servo systems with feedback signal transmission delay is studied. In order to improve the control accuracy of the system, a hybrid controller which combines a delay observer, a nonlinear disturbance observer and a backstepping controller is proposed. The controller has the characteristics of compensating the delay of signal transmission, restraining the uncertain disturbance of control systems and high control precision. In order to verify the stability and validity of the proposed hybrid controller, a single-degree-of-freedom electro-hydraulic shaking table is used to verify the experimental results. The experimental results show that the proposed controller has better control effects than proportional integral derivative and backstepping controller.
Funder
national natural science foundation of china
ministry of education of the people’s republic of china
priority academic program development of jiangsu higher education institutions
Program for Changjiang Scholars and Innovative Research Team in University
Jiangsu Engineering Technology Research Center on Intelligent Equipment
Subject
Mechanical Engineering,Control and Systems Engineering
Cited by
7 articles.
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