Searched for: +
(1 - 20 of 82)

Pages

document
Pelka, S. (author), Conradie, Peter (author), De Vries, Laurens (author), Anatolitis, Vasilios (author), Martens, Emma (author), Chappin, E.J.L. (author), Karaliopoulos, Merkouris (author), Anagnostopoulos, Filippos (author), Preuß, Sabine (author)
Prosumers with photovoltaic systems can reduce their electricity expenses by increasing their consumption of self-generated electricity. This makes them more resilient to price shocks, like the 2022 European energy crisis. We evaluate how prosumers adapt their consumption behavior in response to such political uncertainty and increasing...
conference paper 2023
document
Patrinopoulou, N. (author), Daramouskas, I. (author), Lappas, V. (author), Morfin Veytia, A. (author), Badea, C. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author), De Vries, V. (author), Van Ham, J. (author)
Metropolis II aims to provide insights in what is needed to enable high-density urban air operations. It does this by investigating the foundation for U-space U3/U4 services. The final goal is to provide a unified approach for strategic deconfliction, tactical deconfliction, and dynamic capacity management. Highly-dense operations in...
conference paper 2022
document
Hennig, R.J. (author), Tindemans, Simon H. (author), De Vries, Laurens (author)
The steady uptake of PV cells and high-power flexible loads such as electric vehicles (EVs) and heat pumps can lead to localized network congestion, if their power consumption or feed-in is not controlled well. One potential way that has been proposed to manage this congestion, are so-called Local Flexibility Markets. It is often argued, that...
conference paper 2022
document
Poplavskaya, K. (author), Joos, Marine (author), Krakowski, Vincent (author), Knorr, Kaspar (author), De Vries, Laurens (author)
The authors provide a critical analysis of existing approaches to balancing and congestion management (specifically redispatch) and their effects on the incentives for service providers. This issue is particularly important in the view of the harmonization of ancillary service procurement in Europe, introduction of cross-border balancing...
conference paper 2020
document
Hennig, R.J. (author), Jonker, Martijn (author), Tindemans, Simon H. (author), De Vries, Laurens (author)
Residential distribution networks in Europe are undergoing rapid changes. As high-power flexible loads, such as electric vehicle (EV) chargers, become more prevalent, the risk of network congestion increases. This is exacerbated by tariff structures which do not give incentives to limit simultaneous power consumption. Network charges in this...
conference paper 2020
document
Piao, L. (author), De Vries, Laurens (author), de Weerdt, M.M. (author), Yorke-Smith, N. (author)
Direct Current Distribution System (DCDS), a promising alternative to existing AC systems, connect customers to DC energy sources without AC/DC conversion. The unique features of DC, including the power-voltage coupling effect, impose different requirements to DCDS operation compared to AC. Addressing a liberalized energy market, this paper...
conference paper 2019
document
Pelka, Sabine (author), De Vries, Laurens (author), Deissenroth, Marc (author)
With an increasing wind and photovoltaic share, the German generation mix becomes more weather-dependent. Backup technologies can help to bridge scarcity moments. These rare moments with high prices are the main events for their cost recovery. However, the uncertain revenue flow combined with long payback periods leads to high investment...
conference paper 2019
document
Piao, L. (author), De Vries, Laurens (author), de Weerdt, M.M. (author), Yorke-Smith, N. (author)
Direct current distribution systems (DCDS), which connect local prosumers directly to community grids without AC/DC conversions, are a promising alternative to AC systems. While regulations call for market-based operation, existing markets for AC systems do not meet DC requirements and cannot be applied to a DCDS. This paper develops a design...
conference paper 2018
document
Poplavskaya, Ksenia (author), De Vries, Laurens (author)
The aggregator has been touted as the key enabler of active engagement of distributed energy resources and promises to contribute to greater economic efficiency in the European balancing markets by providing cheap sources of flexibility. This paper presents an empirical analysis of how aggregators organize themselves in relation to other...
conference paper 2018
document
Piao, L. (author), de Weerdt, M.M. (author), De Vries, Laurens (author)
DC distribution systems (DCDS) connect local generators and loads directly. By avoiding unnecessary losses in AC-DC conversion, DCDS offers higher energy efficiency. Since different parties in a DCDS may have conflicting goals, matching between power supply and demand should be done with carefully designed allocation rules and monetary transfers...
conference paper 2017
document
Philipsen, R.M. (author), Morales-Espana, G. (author), de Weerdt, M.M. (author), De Vries, Laurens (author)
conference paper 2017
document
Philipsen, R.M. (author), de Weerdt, M.M. (author), De Vries, Laurens (author)
Large controllable loads, such as electric vehicles, are increasingly penetrating electricity distribution feeders. To avoid local congestion, their consumption behaviour must be steered, for which a real-time price propagated down from the transmission system does not suffice, as it does not reflect local grid conditions. To efficiently steer...
conference paper 2016
document
Philipsen, R.M. (author), Morales-Espana, G. (author), de Weerdt, M.M. (author), De Vries, Laurens (author)
In order to cope with fluctuations and uncertainty, power systems rely on contracted reserves. The day-ahead Unit Commitment (UC) is the short-term planning process which is commonly used to schedule these resources at minimum cost, while operating the system and units within secure technical limits. This paper shows through the evaluation of...
conference paper 2016
document
De Vries, P. (author), Boelhouwer, P.J. (author)
conference paper 2015
document
De Vries, P. (author)
conference paper 2015
document
De Vries, P. (author), Boelhouwer, P.J. (author)
conference paper 2015
document
Ihsen, S. (author), Jeanrenaud, Y. (author), De Vries, P. (author), Hennis, T.A. (author)
conference paper 2015
document
Do, T.K.A. (author), Stive, M.J.F. (author), Brouwer, R.L. (author), De Vries, S. (author)
This study presents an analysis of the planform stability of the complex embayed beach system of Da Nang Bay, central Vietnam. As a result of the intensification of extreme weather conditions and human activities in this area (e.g. land reclamation, river damming, and coastal structures), coastal safety as well as economic and ecological values...
conference paper 2015
document
De Vries, S. (author), Radermacher, M. (author), De Schipper, M.A. (author), Stive, M.J.F. (author)
The Sand Motor is a mega-nourishment characterized by a very large sand volume of around 20 million m3 placed along the Dutch coast. The Sand Motor is a pilot project to evaluate the performance of an alternative nourishment strategy with respect to different functions of the coastal system. Within the scope of the coastal functions, the hook...
conference paper 2015
document
Van de Kuilen, J.W.G. (author), Otterloo, J. (author), Ravenshorst, G.J.P. (author), De Vries, P. (author)
Wooden mitre gates are used for centuries in waterways and canals. For newly built as well as the renewal of such gates, a number of wood species is used, ranging from oak to dense tropical hardwoods. As mitre gates have high loads to withstand, their strength verification has become more and more important. As strength verification rules for...
conference paper 2014
Searched for: +
(1 - 20 of 82)

Pages