Design and analysis of robust fault detection filter using LMI tools

Lmi-based Integration of Robust H∞ -control and Rfd for Lti Systems

In this contribution, problems related to the integrated design of observer-based robust H∞ controller and robust fault detection (RFD) system is studied for uncertain LTI systems with both modelling errors and unknown input. We first propose to use an ideal solution, which is in fact an optimization solution of fault detection filter achieved on the assumption of the system model is perfectly ...

Lmi Approach to Design Fault Detection Filter for Discrete-time Switched Systems with State Delays

This paper investigates the problem of robust fault detection for discretetime switched systems with state delays. The objective is to design a robust fault detection filter that guarantees both sensitivity to faults and robustness to disturbances. Based on switched Lyapunov functional method, sufficient conditions for the existence of the above filters are given in terms of linear matrix inequ...

Robust and reduced order fault detection filter design via LMI approach

Robust and Reduced Order H-infinity Filtering via Lmi Approach and Its Application to Fault Detection 425 Robust and Reduced Order H-infinity Filtering via Lmi Approach and Its Application to Fault Detection

Filters that estimate the state variables of a system are important tools for control and signal processing applications. Early work in the area assumed that the system dynamics were known and external disturbances were white noise with known statistical properties. In contrast to traditional Kalman filters, H filters do not require knowledge of the statistical properties of the noise. H filt...

A Robust Adaptive Observer-Based Time Varying Fault Estimation

This paper presents a new observer design methodology for a time varying actuator fault estimation. A new linear matrix inequality (LMI) design algorithm is developed to tackle the limitations (e.g. equality constraint and robustness problems) of the well known so called fast adaptive fault estimation observer (FAFE). The FAFE is capable of estimating a wide range of time-varying actuator fault...