Design of Reliable Adaptive Controller for Uncertain Linear Systems with

Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICEE21_240

تاریخ نمایه سازی: 27 مرداد 1392

Abstract:

This research is aimed at investigating troubles of designing reliable H∞controls with an adaptive mechanism for linear systems having uncertainty in all system matrices andactuator faults.In order to design an indirect reliable controller using state feedback a novel approach is presented for actuatorfault compensations. According to on-line approximation of eventual faults, the considered reliable controller parameters are updated in order to adjust fault effects upon systems. An adaptive H∞ performance index is described to specify disturbance attenuation performance of closed-loop systems. The designrequirements are presented based on solutions obtained for linear matrix inequalities. Designs are able to assure the asymptoticstability and adaptive H∞ performance of closed-loop systems while there are some actuator failures. It is possible to warrant efficiency of proposed design by numerical instances.

Authors

Anahita Ghasemi

Departement of Electrical Engineering ,Mashhad branch,Islamic Azad University,Mashhad,Iran

Ali Abootalebi

Departement of Electrical Engineering,Naghshe jahan Institute of Higher Education,Isfahan

Saeed Toosizadeh

Departement of Electrical Engineering ,Mashhad branch,Islamic Azad University,Mashhad,Iran,