کنفرانس مهندسی برق ایران

صفحه اصلی / سی و دومین کنفرانس بین المللی مهندسی برق

Sensor Faults Diagnosis in T-S Fuzzy Discrete Descriptor Systems Using Design a New Unknown Input Observer

نویسندگان :

Masoud Shafiee¹ Amir Abolfazl Suratgar² Mehdi Mirshahi³

1- دانشگاه صنعتی امیرکبیر 2- دانشگاه صنعتی امیرکبیر 3- دانشگاه صنعتی امیرکبیر

کلمات کلیدی :

Sensor Fault diagnosis،T-S discrete descriptor systems،Unknown input observer،Input and Output disturbance

چکیده :

This paper discusses the sensor fault diagnosis and state estimation with input and output disturbance in T-K fuzzy discrete descriptor linear systems. The sensor fault in the output measurement equation can be augmented with the state variable to create a new state variable. The augmented equation can then be rewritten as a descriptor system to estimate the state variables of the new system. A new T-S fuzzy unknown input observer is proposed to estimate the errors of the new state variables. The asymptotic stability conditions of the dynamic error of the observer are obtained in terms of linear matrix inequalities. A practical example is provided to demonstrate the effectiveness of the proposed method