Fuzzy practical exponential tracking of an electrohydraulic servosystem

FME Transactions

Jovanović Radiša Ž.¹  Ribar Zoran B.¹ 

[1] Faculty of Mechanical Engineering, Belgrade, Serbia;

关键词: fuzzy control;    practical tracking;    electrohydraulic servosystem;   

DOI  :  

来源: DOAJ

【 摘 要 】

The aim of this paper is to contribute to the theoretical and practical applications of fuzzy logic control using practical tracking concept. A new fuzzy control algorithm is proposed to achieve the desired tracking performance of a nonlinear electrohydraulic position servo system, which can be found in many manufacturing devices. The fuzzy logic controller is one of the simplest. It employs only one input, with linear fuzzy inference method. The practical tracking control algorithm is based on the selfadjustment principle. The structural characteristic of such a control system is the existence of two feedback sources: the global negative of the output value and the local positive of the control value. Such a structure ensures the synthesis of the control without the internal dynamics knowledge and without measurements of disturbance values. The proposed fuzzy practical control algorithm ensures the change of the output error value according to a prespecified exponential law. The simulation results of the nonlinear mathematical model of the hydraulic servo system are presented.

【 授权许可】

Unknown