A new observer for state and unknown inputs in linear time delay systems
Publish place: Fifth International Conference on Electrical and Computer Engineering with Emphasis on Indigenous Knowledge
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
COMCONF05_515
تاریخ نمایه سازی: 21 اردیبهشت 1397
Abstract:
This paper proposes a new state observer for linear systems with different time delays in the state and input. First, the system dynamics are rewritten as an augmented system with state vector including both the state vector of the system and the unknown inputs. Then, a reduced-order observer was designed to estimate both state and unknown inputs simultaneously. Conditions for stability of the reduced-order observer are translated into linear matrix inequalities (LMIs) which facilitates the design of the observer gains. Finally Simulation results demonstrate effectiveness of the proposed observer.
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Authors
Reza Rezaei
Control Engineering Department Faculty of Electrical and Computer Engineering University of Tabriz, Tabriz, Iran
Farzad Hashemzadeh
Control Engineering Department, Faculty of Electrical and Computer Engineering University of Tabriz, Tabriz, Iran
Hamed Kharrati
Control Engineering Department, Faculty of Electrical and Computer Engineering University of Tabriz, Tabriz, Iran