In this paper an analysis is made of the influence of the sampling period in the control performance of a pole-placement adaptive controller for a real-time distributed control system under output jitter conditions. Results show that the lower the sampling frequency the better control performance is obtained for the same jitter conditions. Key-Words: jitter, real-time systems, distributed contr...

Recently, interest in microgrids, which are composed of distributed generation (DG), distributed storage (DS), and loads, has been growing as a potentially effective clean energy system to mitigate against climate change. The microgrid is operated in the grid-connected mode and the islanded mode according to the conditions of the upstream power grid. The role of the energy storage system (ESS) ...

The aim of the work reported in this thesis is to investigate how to establish a standard platform for remote maintenance of controller software, which provides remote monitoring, remote fault identification and remote performance recovery services for geographically distributed controller software over the Internet. A Linear Quadratic Gaussian (LQG) controller is used as the benchmark for the ...

In this paper we present an example of a distributed control system implementing state observer controller. Distribution is based on middleware approach. As the middleware for the hardware and network abstraction we used the LabMap/LabNet. For the controller platform we took MATLAB/Simulink. The approach illustrated in this work offers an outlook for the cases where computational resources are ...

In this paper, a new T-S fuzzy hyperbolic delay model for a class of nonlinear systems with time-varying delay, is presented to address the problems of stability analysis and feedback control. Fuzzy controller is designed based on the parallel distributed compensation (PDC), and with a new Lyapunov function, delay dependent asymptotic stability conditions of the closed-loop system are derived v...

This paper presents a state-space approach for the robustness synthesis of T-S(Takagi-Sugeno) model with uncertainty. Two problems, robust stability and robust performance, are treated in the same framework. Suucient conditions are given on the robustness of T-S systems subject to L 2 norm-bounded structured uncertainty. Based on these conditions, feedback controller synthesis procedures are pr...

Model-based control of the outlet temperature of a distributed solar collector eld is studied. An energy-based controller is derived using internal energy as a storage function and controlled variable. The controller relies on a distributed parameter nonlinear plant model and includes feedforward from the solar irradiation and inlet temperature. Stability of the closed loop is proved, and the m...

A distributed control strategy is presented that supports the implementation of hybrid (pseudodynamic) testing with geographically distributed substructures. The objectives of the distributed controller are: (1) to provide a scalable framework for multiple substructure testing at distributed sites and (2) to improve the reliability of the test results by minimizing strain-rate and force relaxat...

We consider the problem of analysis and control of discretely distributed systems in multidimensional arrays or lattices. For spatially(shift) invariant systems distributed in one spatial dimension, we build an efficient arithmetic that preserves the rational Laurent operator structure, leading to fast iterative methods of solving Lyapunov and Riccati equations and block diagonalizations, and t...

We study a multi-agent output regulation problem, where not all agents have access to the exosystem’s dynamics. We propose a distributed controller that solves the problem for linear, heterogeneous, and uncertain agent dynamics as well as time-varying directed networks. The distributed controller consists of two parts: (1) an exosystem generator that creates a local copy of the exosystem dynami...