Predictive function and sliding model controller of continuous rotary electro-hydraulic servo motor applied to simulator

被引:0
|
作者
Wang X.-J. [1 ]
Liu M.-Z. [1 ]
Chen S. [1 ]
Li S. [1 ]
机构
[1] School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin
关键词
Continuous rotary electro-hydraulic servo motor; Fluid transmission and control; Internal model control; Predictive function control; Sliding mode variable structure control;
D O I
10.13229/j.cnki.jdxbgxb20180507
中图分类号
学科分类号
摘要
Due to the existing uncertainties caused by high non-linearity, friction, leakage and other external factors in the flight simulator with continuous rotary electro-hydraulic servo motor, it is difficult to accurately establish the mathematical model and also the traditional control strategies can not satisfy the high performance requirements. To overcome these problems, a compound control strategy composed of Predictive Function Control and Sliding Model Control (PFC-SMC) was proposed. In the electro-hydraulic servo system, the control principle of internal model control with state feedback is adopted, the internal model control principle and sliding model variable structure control is combined. The sliding model variable structure control can overcome external disturbing and parameters' time-varying property. The internal model controller is designed using the predictive function theory, which can greatly suppress chattering of sliding mode structure, and achieve high precision and high frequency responding on tracking performance. The simulation results show that PFC-SMC algorithm improves the tracking performance and anti-interference ability of the electro-hydraulic position servo system greatly comparing with the traditional PID control, and effectively expands the bandwidth. The accurate control of electro-hydraulic position servo system of hydraulic simulation turntable can be realized. © 2019, Jilin University Press. All right reserved.
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页码:1547 / 1557
页数:10
相关论文
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