Robust nonlinear observer design for actuator fault detection in diesel engines
نویسندگان
چکیده
منابع مشابه
Robust nonlinear observer design for actuator fault detection in diesel engines
This paper is concerned with actuator fault detection in nonlinear systems in the presence of disturbances. A nonlinear unknown input observer is designed and the output estimation error is used as a residual for fault detection. To deal with the problem of high Lipschitz constants, a modified mean-value theorem is used to express the nonlinear error dynamics as a convex combination of known ma...
متن کاملNonlinear observer-based fault detection
This communication deals with t h e problem of designing a nonlinear observer i n order to achieve fault detection and l o c a l i z a t i o n for a wide class of nonlinear systems subjected to bounded nonlinearities. A dedicated non l inear observer scheme (DNOS) for fault detection and identification in reconstructible systems i s p r o p o s e d .
متن کاملRobust Controller Design Based on Sliding Mode Observer in The Presence of Uncertainties and Actuator Saturation
This paper studies the design of a robust output feedback controller subject to actuator saturation. For this purpose, a robust high-gain sliding mode observer is used to estimate the state variables. Moreover, the combination of Composite Nonlinear Feedback (CNF) and Integral Sliding Mode (ISM) controllers are used for robust output tracking. This controller consists of two parts, the CNF part...
متن کاملHybrid Unknown Input Observer for Actuator Fault Detection and Compensation
The problem of unknown input estimation and compensation is studied for actuated nonlinear systems with noisy measurements. The proposed solution is based on high order sliding-mode differentiation and discretetime optimization technique. Accuracy of the proposed hybrid estimation scheme is evaluated and stability of the compensating mechanism is established. It is shown that the fault detectio...
متن کاملDevelopment of a Robust Observer for General Form Nonlinear System: Theory, Design and Implementation
The problem of observer design for nonlinear systems has got great attention in the recent literature. The nonlinear observer has been a topic of interest in control theory. In this research, a modified robust sliding-mode observer (SMO) is designed to accurately estimate the state variables of nonlinear systems in the presence of disturbances and model uncertainties. The observer has a simple ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Applied Mathematics and Computer Science
سال: 2013
ISSN: 2083-8492,1641-876X
DOI: 10.2478/amcs-2013-0042