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To enable power supply in rural areas and to exploit clean energy, fully renewable power systems consisting of cascaded run-of-the-river hydropower and volatile energies such as pv and wind are built around the world. In islanded operation…

Optimization and Control · Mathematics 2021-03-30 Yiwei Qiu , Jin Lin , Feng Liu , Ningyi Dai , Yonghua Song , Gang Chen , Lijie Ding

In cloud computing management, the dynamic adaptation of computing resource allocations under time-varying workload is an active domain of investigation. Several control strategies were already proposed. Here the model-free control setting…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-10-10 Maria Bekcheva , Michel Fliess , Cédric Join , Alireza Moradi , Hugues Mounier

Cross-flow turbines, also known as vertical-axis turbines, have numerous features that make them attractive for wind and marine renewable energy. To maximize power output, the turbine blade kinematics may be controlled during the course of…

Fluid Dynamics · Physics 2016-05-06 Benjamin Strom , Steven L. Brunton , Brian Polagye

The "equation-free'' approach has been proposed in recent years as a general framework for developing multiscale methods to efficiently capture the macroscale behavior of a system using only the microscale models. In this paper, we take a…

Numerical Analysis · Mathematics 2008-06-11 Weinan E , Eric Vanden-Eijnden

This paper considers the network flow stabilization problem in power systems and adopts an output regulation viewpoint. Building upon the structure of a heterogeneous port-Hamiltonian model, we integrate network aspects and develop a…

Optimization and Control · Mathematics 2018-04-27 Catalin Arghir , Florian Dörfler

This paper discusses the concept of model-driven software engineering applied to the Grid application domain. As an extension to this concept, the approach described here, attempts to combine both formal architecture-centric and…

Software Engineering · Computer Science 2007-05-23 David Manset , Herve Verjus , Richard McClatchey , Flavio Oquendo

A new approach is shown, which estimates active grid wake features and enables to generate specific dynamically changing flow fields in a wind tunnel by means of an active grid. For example, measurements from free field can be reproduced in…

Fluid Dynamics · Physics 2017-03-03 Nico Reinke , Tim Homeyer , Michael Hölling , Joachim Peinke

The increasing access to non-expensive sensors, computing power, and more accurate forecasting of storm events provides unique opportunities to shift flood management practices from static approaches to an optimization-based real-time…

Systems and Control · Electrical Eng. & Systems 2022-05-10 Marcus N. Gomes Junior , Marcio H. Giacomoni , Ahmad F. Taha , Eduardo M. Mendiondo

Green hydrogen has shown great potential to power microgrids as a primary source, yet the operation methodology under extreme events is still an open area. To fill this gap, this letter establishes an operational optimization strategy…

Systems and Control · Electrical Eng. & Systems 2023-12-08 Chaofan Lin , Peng Zhang , Xiaonan Lu

This paper presents a closed-loop controller for wind farms to provide active power control services using a high-fidelity computational fluid dynamics based wind plant simulator. The proposed design enhances power tracking stability and…

Systems and Control · Electrical Eng. & Systems 2022-06-15 Jean Gonzalez Silva , Bart Matthijs Doekemeijer , Riccardo Ferrari , Jan-Willem van Wingerden

Model-free learning-based control methods have seen great success recently. However, such methods typically suffer from poor sample complexity and limited convergence guarantees. This is in sharp contrast to classical model-based control,…

Optimization and Control · Mathematics 2020-06-16 Guannan Qu , Chenkai Yu , Steven Low , Adam Wierman

As a consequence to the hype of Grid computing, such systems have seldom been designed using formal techniques. The complexity and rapidly growing demand around Grid technologies has favour the use of classical development techniques,…

Software Engineering · Computer Science 2007-05-23 David Manset , Richard McClatchey , Flavio Oquendo , Herve Verjus

With the maritime industry poised on the cusp of a hybrid revolution, the design and analysis of advanced vessel systems have become paramount for engineers. This paper presents AC and DC electrical hybrid power system models in ETAP, the…

Systems and Control · Electrical Eng. & Systems 2024-10-01 Matthijs Mosselaar , Zoran Malbašić , Aihui Fu , Aleksandra Lekić

This work is concerned with the exact controllability/observability of abstract cascade hyperbolic systems by a reduced number of controls/observations. We prove that the observation of the last component of the vector state allows to…

Optimization and Control · Mathematics 2014-01-29 Fatiha Alabau-Boussouira

The mathematical theory for optimal switching is by now relatively well developed, but the number of concrete applications of this theoretical framework remains few. In this paper, we bridge parts of this gap by applying optimal switching…

Optimization and Control · Mathematics 2020-09-23 Niklas L. P. Lundström , Marcus Olofsson , Thomas Önskog

Increasing adoption of smart meters and phasor measurement units (PMUs) in power distribution networks are enabling the adoption of data-driven/model-less control schemes to mitigate grid issues such as over/under voltages and power-flow…

Systems and Control · Electrical Eng. & Systems 2023-04-27 Rahul Gupta , Mario Paolone

Modelling river physical processes is of critical importance for flood protection, river management and restoration of riverine environments. Developments in algorithms and computational power have led to a wider spread of river simulation…

To predict the future evolution of dynamical systems purely from observations of the past data is of great potential application. In this work, a new formulated paradigm of reservoir computing is proposed for achieving model-free…

Neural and Evolutionary Computing · Computer Science 2021-10-27 Zhuo Liu , Leisheng Jin

An energy management scheme is presented for a grid-connected hybrid power system comprising of a photovoltaic generator as the primary power source and fuel-cell stacks as backup generation. Power production is managed between the two…

Systems and Control · Computer Science 2018-05-01 Adeel Sabir

The Energiewende is a paradigm change that can be witnessed at latest since the political decision to step out of nuclear energy. Moreover, despite common roots in Electrical Engineering, the control community and the power systems…

Systems and Control · Computer Science 2018-11-13 Timm Faulwasser , Alexander Engelmann , Tillmann Mühlpfordt , Veit Hagenmeyer