Double Fuzzy Control with Compensating Factor for Electronic-hydraulic Servovalve-controlled System

被引：0

作者：

Peng H. ^{[1
,2
]}

Wang J. ^{[1
,2
]}

Shen W. ^{[1
,2
]}

Li D. ^{[1
,2
]}

机构：

[1] School of Automation, Beijing Institute of Technology, Beijing

[2] Key Laboratory of Intelligent Control and Decision of Complex System, Beijing

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2017年 / 53卷 / 24期

关键词：

Asymmetric cylinder; Compensating factor; Double fuzzy controller; Electronic-hydraulic servovalve-controlled system;

D O I：

10.3901/JME.2017.24.184

中图分类号：

学科分类号：

摘要：

To address the asymmetry problem caused by the asymmetry of the asymmetric cylinder when electronic-hydraulic servovalve-controlled system is working at symmetric motion state, a double fuzzy control method with compensating factor is proposed. Considering the electronic-hydraulic servovalve-controlled system with asymmetric cylinder, fuzzy controller with compensating factor is used to solve the asymmetry problem caused by the asymmetry of the asymmetric cylinder. Since the load force will vary in large range, the fuzzy PID controller is used to adapt the mutative load. The inputs of fuzzy PID controller and fuzzy controller with compensating factor are error and the differential of error which generated by tracking differentiator. The fuzzy PID controller output the coefficients of PID controller and the fuzzy controller with compensating factor output the compensating factor. An effective method to solve the asymmetry problem of the asymmetric cylinder is generated by combining compensating factor and the fuzzy PID controller. Simulations and experiments show that the proposed method has the ability to solve the asymmetry problem caused by the asymmetry of the asymmetric cylinder in electronic-hydraulic servovalve-controlled system, and has perfect control performance. © 2017 Journal of Mechanical Engineering.

引用

页码：184 / 192

页数：8

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