A mixed I approach to simultaneous fault detection and control
نویسندگان
چکیده
In this technical report, the problem of Simultaneous Fault Detection and Control (SFDC) is considered. This problem is reduced to a multiobjective optimization problem. We show that there exists a fundamental separation theorem allowing us to seperate this multiobjective problem into a control problem and a fault detection problem. Moreover, the SFDC problem is modeled in terms of a mixed optimization problem and a Riccati equation based solution leading to the design of controller/detector system of reasonable complexity is given. An application of our results is presented using the nonlinear Ball and Beam system. Key-words: Simultaneous fault detection and control, fault detection, fault isolation, robust control, mixed control Department of Electrical Engineering, K.N.Toosi University of Technology, P. O. Box 16315-1355, Tehran, Iran 16314. Fax: +(98) 21-86-20-66, Email: [email protected] INRIA, Rocquencourt, BP 105, 78153 Le Chesnay cedex, France, Fax: +(33) 1-39-63-57-86, Email: [email protected]. Department of Electrical and Software Engineering, University of Wisconsin-Platteville, 1 University Plaza, Platteville, WI 53818, USA, Fax: +(1) 608-342-1566, Email: [email protected] Une Approche Mixte pour la Détection simultanée de Commande et de Défaut Résumé : Dans ce rapport technique, on traite le problème de la détection simultanée de défaut et de commande (SFDC). Ce problème est réduit à un problème d’optimisation multi-objectifs. Nous montrons qu’il existe un théorème fondamental de séparation, qui nous permet la décomposition de ce problème multi-objectifs en un problème de commande et un problème de détection de défaut. D’ailleurs, le problème SFDC est modèle en termes de problème d’optimisation mixte et une solution de l’équation de Riccati menant à la conception d’un système détecteur/contrôleur de complexité raisonnable. Une application de nos résultats est pressée en utilisant un système nonlinéaire Ball & Beam. Mots-clés : Détection simultanée de défaut et de commande, détection de défaut, analyse de panne, commande robuste, contrôle mixte A Mixed Approach to Simultaneous Fault Detection and Control 3
منابع مشابه
Design of an Active Approach for Detection, Estimation and Short-Circuit Stator Fault Tolerant Control in Induction Motors
Three phase induction motors have many applications in industries. Consequently, detecting and estimating the fault and compensate it in a way that the faulty induction motor satisfies the predefined goals are important issues. One of the most common faults in induction motors is the short circuit of the stator winding. In this paper, an active fault-tolerant control system is designed and pres...
متن کاملApplication of Decision on Beliefs for Fault Detection in uni-variate Statistical Process Control
In this research, the decision on belief (DOB) approach was employed to analyze and classify the states of uni-variate quality control systems. The concept of DOB and its application in decision making problems were introduced, and then a methodology for modeling a statistical quality control problem by DOB approach was discussed. For this iterative approach, the belief for a system being out-...
متن کاملDetection of Single and Dual Incipient Process Faults Using an Improved Artificial Neural Network
Changes in the physicochemical conditions of process unit, even under control, may lead to what are generically referred to as faults. The cognition of causes is very important, because the system can be diagnosed and fault tolerated. In this article, we discuss and propose an artificial neural network that can detect the incipient and gradual faults either individually or mutually. The mai...
متن کاملA Novel Fault Detection and Classification Approach in Transmission Lines Based on Statistical Patterns
Symmetrical nature of mean of electrical signals during normal operating conditions is used in the fault detection task for dependable, robust, and simple fault detector implementation is presented in this work. Every fourth cycle of the instantaneous current signal, the mean is computed and carried into the next cycle to discover nonlinearities in the signal. A fault detection task is complete...
متن کاملNonlinear and Non-stationary Vibration Analysis for Mechanical Fault Detection by Using EMD-FFT Method
The Hilbert-Huang transform (HHT) is a powerful method for nonlinear and non-stationary vibrations analysis. This approach consists of two basic parts of empirical mode decomposition (EMD) and Hilbert spectral analysis (HSA). To achieve the reliable results, Bedrosian and Nuttall theorems should be satisfied. Otherwise, the phase and amplitude functions are mixed together and consequently, the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Automatica
دوره 40 شماره
صفحات -
تاریخ انتشار 2004