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This paper discusses the problem of designing the sliding-mode-based sensor faults estimation in a general structure suitable on the actuator as well as sensor faults detection and estimation. The problem addressed is indicated as an unified algebraic approach giving sufficient conditions of solution. Lyapunov inequality implying from two linear matrix inequalities are outlined to posses a stabile...
Sufficient conditions are given for the stability of linear switched systems with dwell time and with polytopic type parameter uncertainty. A Lyapunov function, in quadratic form, which is non-increasing at the switching instants is assigned to each subsystem. During the dwell time, this function varies piecewise linearly in time after switching occurs. It becomes time invariant afterwards. This function...
This paper addresses the problem of design a fault detection system for switched systems with unknown inputs. The residual generator based robust fault detection filter (RFDF) will be used, where the switching signal is assumed to be known, and the continuous states will be estimated, resulting a generation of residual signals for each linear model. Dwell-time constraint will be used to ensure the...
This paper proposes two observer-based FDI strategies for nonlinear systems represented by a particular class of multiple model using heterogeneous submodels. The structure of this interesting multiple model is firstly presented in order to design two kinds of state observers. The first observer, known as proportional observer (PO), is an extension of the classic Luenberger observer, in this way,...
In this paper, we first introduce a distributed control strategy for velocity synchronization (or velocity consensus seeking) of multiple heterogeneous Euler-Lagrange (EL) systems with switching communication network topologies. This controller is denoted as the “nominal” controller. To guarantee velocity synchronization for switching communication network topologies we require existence of non-vanishing...
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