Delay systems have attracted a considerable amount of interest δðtnÞ for t≥t, which in practice is unrealistic. Conceptually, this in the control theory community in recent years, due to important methodological and practical issues involved in their analysis and design. New and emergent application areas, such as control of networked systems, are inherently characterized by the presence of tim...

This paper is concerned with observer based output feedback control of linear systems with both (multiple) input and output delays. Our recently developed truncated predictor feedback (TPF) approach for state feedback stabilization of time-delay systems is generalized to the design of observers. By imposing some restrictions on the open-loop system, two classes of observer based output feedback...

where x(t) ∈ IRn is the state, u(t) ∈ IRp the input, d(t) ∈ IRq is a disturbance and y(t) ∈ IRm the output. The matrices A0, A1, A−1, B0, C0 and D0 are of suitable dimensions. In this paper we assume that matrices B0 and C0 are of full rank. There are more general forms of delay systems of neutral type: with several delays, with distributed delays... Our considerations may be formulated for sys...

This paper investigates the issue of the internal stability of nonlinear delay systems controlled with a feedback law that performs exact input–output, linearization and delay cancellation. In previous works the authors showed that, unlike with the case of systems without state delays, when the relative degree is equal to the number of state variables and the output is forced to be identically ...

In this paper, the finite-time stability for nonlinear neutral multi-term fractional order systems with time-varying input and state delays is investigated. By use of generalized Gronwall inequality extended form inequality, new sufficient conditions such are obtained. Finally, numerical examples given to illustrate effectiveness applicability proposed theoretical results.

in this paper, a two-surfaces sliding mode controller (tssmc) is proposed for the voltage tracking control of a two input dc-dc converter in application of electric vehicles (evs). the imperialist competitive algorithm (ica) is used for tuning tssmc parameters. the proposed controller significantly improves the transient response and disturbance rejection of the two input converters while prese...