Ah&act-This paper is devoted to the temperature control and the stabilization under input constraints of exothermic chemical reactors. We first consider a reactor in which a single and exothermic reaction takes place and design state feedback controllers to achieve the global and robust stabilization under input constraints of the reactor. Then, we extend these results to a general class of exo...

In this work, we focus on the problem of stabilization of constrained nonlinear systems subject to data losses. We extend previous results on Lyapunov-based model predictive control (LMPC) of nonlinear systems subject to data losses to explicitly handle the presence of input and state constraints. In addition, a hybrid LMPC controller for systems subject to soft state constraints with the objec...

We define a timing language that supports the design and implementation of embedded control software. The language is inspired by the Logical Execution Time (LET) paradigm of Giotto, but combines it with classical precedence constraints on tasks. A program specifies multiple modes of operation, where each mode consists of a set of periodically activated sensors, actuators, tasks, and mode switc...

For a class of linear dynamical systems with unknown parameters a direct model reference adaptive control framework is developed that provides stable adaptation in the presence of input constraints. The proposed design methodology, termed “positive μ-modification”, protects the control law from actuator position saturation. Moreover, the design is Lyapunov based and ensures global asymptotic tr...

In this work we consider a flow network for which the goal is to solve a practical optimal regulation problem in the presence of input saturation. Based on Lyapunov arguments we propose distributed controllers which guarantee global convergence to an arbitrarily small neighborhood of the desired optimal steady state while fulfilling the constraints. As a case study we apply our distributed cont...

This paper addresses the synchronization problem of systems modeled by EulerLagrange equations and subject to input saturations. First, a new control design strategy, based on virtual systems, is proposed. This approach allows to generate control inputs that are a priori bounded in the presence of communication time-delays, regardless of the information flow topology between systems in the netw...

This paper presents a practical method for generating high-performance control laws which are guaranteed to be stabilizing in the presence of known input constraints. We address the class of smooth nonlinear systems which are affine in the control with non-smooth (rectangular or polytopic) actuator constraints and a known control Lyapunov function. We present a result which uses a complete stat...

A very significant result in modern control theory is that, for a linear. finite-dimensional, dynamical system. the state feedback law derived from a quadratic-loss-function niinimisation problem is linear. The paper applies the results of this optimal control theory to a class of problems in which the feedback law is realised by a linear dynamical system. The quadratic loss function of interes...

A novel approach to robust controller design with hard input constraints is presented. The proposed robust controller design procedure is based on the robust stability condition developed using Affine or Parameter-Dependent Quadratic Stability approach. The obtained feasible design procedures are in the form of BMI or LMI. The obtained design results and their properties are illustrated in simu...