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Concept

Unit commitment problem in electrical power production

Publications associées (30)

An Inertial Parallel and Asynchronous Forward-Backward Iteration for Distributed Convex Optimization

Colin Neil Jones, Georgios Stathopoulos

Two characteristics that make convex decomposition algorithms attractive are simplicity of operations and generation of parallelizable structures. In principle, these schemes require that all coordinates update at the same time, i.e., they are synchronous ...

SPRINGER/PLENUM PUBLISHERS2019

System and method for operating a combination of heterogeneous energy resources for fast grid services

Colin Neil Jones, Ioannis Lymperopoulos, Tomasz Tadeusz Gorecki, Faran Ahmed Qureshi, Luca Fabietti

The present invention concerns a method of controlling a set of electrical power resources in an electrical power grid managed by a power grid operator. The set comprises a first electrical power resource with a first electrical power response frequency an ...

2019

Real-Time Optimization of Solid Oxide Fuel Cell Systems : Methodology and Implementation

Tafarel de Avila Ferreira

Optimization of industrial processes aims at minimizing operating cost or maximizing economic profit while respecting plant constraints. In process industry, real-time optimization (RTO) is often considered to ensure optimal plant operation and constraint ...

EPFL2019

Comparative exergy and economic assessment of fossil and biomass-based routes for ammonia production

François Maréchal, Daniel Alexander Florez Orrego

The use of biomass gasification for partially or totally replacing methane in the integrated syngas and ammonia production plant is compared with the performance of the conventional route, typically based on steam methane reforming. However, by undertaking ...

Elsevier2019

Introducing flexibility in alpine small hydropower plants using smart storage

Pedro Filipe De Almeida Manso, Jessica Zordan

Small hydropower plants can improve their proficiency if they are able to become more flexible on power production, answering the need of peak energy demand, following the needs of the energy market and providing ancillary services in the electricity suppl ...

Hydropower&Dams, Aqua Media International2019

Local Energy Storage and Stochastic Modeling for Ultrafast Charging Stations

Hubert Girault, Heron Vrubel, Yorick Ligen

Multi-stall fast charging stations are often thought to require megawatt-range grid connections. The power consumption profile of such stations results in high cost penalties due to monthly power peaks and expensive linkage fees. A local energy storage sys ...

2019

Constrained hierarchical networked optimization for energy markets

Lorenzo Nespoli

In this paper, we propose a distributed control strategy for the design of an energy market. The method relies on a hierarchical structure of aggregators for the coordination of prosumers (agents which can produce and consume energy). The hierarchy reflect ...

IEEE2018

Dynamics and Optimal Control of Self-Sustained Instabilities in Laminar and Turbulent Swirling Flows: Application to the Part Load Vortex Rope in Francis Turbines

Simon Pasche

In 2050, the European commission plans to achieve actual energetic transition, which contributes in meeting the climate change challenges by moving away from the fossil fuels and by developing a competitive low-carbon economy. As a consequence, a foreseeab ...

EPFL2018

Experimental Validation of an Explicit Power-Flow Primary Control in Microgrids

Jean-Yves Le Boudec, Mario Paolone, Enrica Scolari, Lorenzo Enrique Reyes Chamorro, Andrey Bernstein, Andreas Martin Kettner, Niek Johannes Bouman

The existing approaches to control electrical grids combine frequency and voltage controls at different time-scales. When applied in microgrids with stochastic distributed-generation, grid quality of service problems may occur, such as under- or overvoltag ...

2018

High Power Electronics Innovation Perspectives for Pumped Storage Power Plants

Drazen Dujic, Pedro Camilo de Oliveira e Silva, Miodrag Basic

The current framework of high penetration of intermittent energy sources requires variable-speed pumped hydro storage power plants (PHSPs) to provide grid support functions, which are, in this case, achieved through two technologies: doubly-fed induction m ...

2018