Browsing SINTEF Open by Author "Vrana, Til Kristian"
Now showing items 1-20 of 29
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C-E (curtailment – Energy share) map: An objective and quantitative measure to evaluate wind and solar curtailment
Yasuda, Yoh; Bird, Lori; Carlini, Enrico; Eriksen, Peter Børre; Estanqueiro, Ana; Flynn, Damian; Fraile, Daniel; Gomez Lazaro, Emilio; Martín-Martínez, Sergio; Hayashi, Daisuke; Holttinen, Hannele; Lew, Debra; McCam, John; Menemenlis, Nickie; Miranda, Raul; Orths, Antje; Smith, J. Charles; Taibi, Emanuele; Vrana, Til Kristian (Peer reviewed; Journal article, 2022)As the share of VRE (variable renewable energy) has grown rapidly, curtailment issues have arisen worldwide. This paper evaluates and compares curtailment situations in selected countries using an objective and quantitative ... -
D2.3 Recommendations for certification and standardisation of Wind Farm Control Deliverable D2.3 - FarmConners
Manjock, Andreas; Canet, Helena; Campagnolo, Filippo; Bossanyi, Ervin; Bayo, Ricard Tomàs; Duc, Thomas; Vrana, Til Kristian; Nwobu, John; Kölle, Konstanze; Freundreich, Kai (Research report, 2022) -
Development of a Generic Future Grid Code regarding Wind Power in Europe
Vrana, Til Kristian; Trilla, Lluis; Attya, Ayman (Chapter, 2017) -
Distributed frequency control with partial information using MT-HVDE grids and WPPs
Bianchi, Fernando D.; Dominguez-Garcia, José Luis; Vrana, Til Kristian (Journal article; Peer reviewed, 2018)Expansion of offshore wind power and the use of high voltage direct current (HVdc) technologies in power transmission are modifying the power system dynamics making them more sensitive to power disturbances. Thus, in order ... -
Estimation of investment model cost parameters for VSC HVDC transmission infrastructure
Vrana, Til Kristian; Härtel, Philipp (Journal article; Peer reviewed, 2018)Investment model cost parameters for VSC HVDC transmission infrastructure continue to be associated with high uncertainty and their validity remains a crucial challenge. Thus, it is the key objective of this analysis to ... -
Flexibility chart 2.0: An accessible visual tool to evaluate flexibility resources in power systems
Yasuda, Yoh; Carlini, Enrico Maria; Estanqueiro, Ana; Eriksen, Peter Børre; Flynn, Damian; Herre, Lars Finn; Hodge, Bri-Mathias; Holttinen, Hannele; Koivisto, Matti Juhani; Gómez-Lózaro, Emilio; Martínez, Sergio Martín; Menemenlis, Nickie; Morales-España, Germán; Pellinger, Christoph; Ramos, Andrés; Smith, Charlie; Vrana, Til Kristian (Peer reviewed; Journal article, 2023)Various aspects of power system flexibility are evaluated within the multi-country study framework of IEA Wind Task 25. Grid components and actions which have been adopted for enhancing flexibility in different areas, ... -
Future-oriented Generic Grid Code regarding Wind Power Plants in Europe
Vrana, Til Kristian; Attya, Ayman; Trilla, Lluis (Peer reviewed; Journal article, 2021)The assessment of compliance with grid codes requirements can be challenging for researchers and (early stage) technology developers. To tackle this problem, a generic grid code is proposed in this article that defines ... -
Grand challenges of wind energy science - Meeting the needs and services of the power system
O'Malley, Mark; Holttinen, Hannele; Cutululis, Nicolaos; Vrana, Til Kristian; King, Jennifer; Gevorgian, Vahan; Wang, Xiongfei; Rajaei-Najafabadi, Fatemeh; Hadjileonidas, Andreas (Peer reviewed; Journal article, 2024)The share of wind power in power systems is increasing dramatically, and this is happening in parallel with increased penetration of solar photovoltaics, storage, other inverter-based technologies, and electrification of ... -
Improved investment cost model and overhead cost consideration for high voltage direct current infrastructure
Vrana, Til Kristian; Härtel, Philipp (Chapter; Peer reviewed, 2023)The ongoing large-scale deployment of offshore wind parks creates the need for substantial investments in Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) transmission infrastructure. An investment ... -
Improving wind power market value with various aspects of diversification
Vrana, Til Kristian; Svendsen, Harald Georg; Korpås, Magnus; Couto, António; Estanqueiro, Ana; Flynn, Damian; Holttinen, Hannele; Härtel, Philipp; Koivisto, Matti; Lantz, Eric; Frew, Bethany (Chapter; Peer reviewed, 2023)The wind generation share in many European bidding zones is now large enough to affect the market value of wind power, and wind energy is getting less-than-average market price in day-ahead markets. As alternatives to ... -
The Low Emission Oil and Gas Open reference platform—An off-grid energy system for renewable integration studies
Svendsen, Harald Georg; Vrana, Til Kristian; Holdyk, Andrzej; Schümann, Heiner (Peer reviewed; Journal article, 2022)This article introduces and describes the integrated energy system of the Low Emission Oil and Gas Open reference platform. It is a hypothetical case meant to represent a typical oil and gas installation in the North Sea. ... -
Model predictive control of compact combined cycles in offshore power plants integrating a wind farm
Qiu, Kang; Andersson, Leif Erik; Zotica, Cristina; Reyes-Lúa, Adriana; Mocholí Montañés, Rubén; Verheyleweghen, Adriaen; Chabaud, Valentin Bruno; Vrana, Til Kristian (Peer reviewed; Journal article, 2023)Model predictive control of compact combined cycles in offshore power plants integrating a wind farm -
Modular plan over 2030-2050 for the European transmission system: a complete analysis of costs and benefits
Careri, Francesco; Huang, Diyun; Vrana, Til Kristian; Gronau, Markus; Viscardi, Veneziano; van Hertem, Dirk; Warland, Leif; Lorenz, C. C. L.; Calisti, R.; Weber, Alexander N R; Migliavacca, Gianluigi (Research report, 2015) -
Offshore power generation with carbon capture and storage to decarbonise mainland electricity and offshore oil and gas installations: A techno-economic analysis
Roussanaly, Simon; Aasen, Ailo; Anantharaman, Rahul; Danielsen, B.; Jakobsen, Jana Poplsteinova; Heme-De-Lacotte, L.; Neji, G.; Sødal, A.; Wahl, Per Eilif; Vrana, Til Kristian; Dreux, R. (Journal article; Peer reviewed, 2018)his study investigates the techno-economic potential of offshore power generation from natural gas with carbon capture and storage to reduce the climate impact of mainland electricity and the offshore oil and gas industry. ... -
Operational Planning and Power Management System for Offshore Platform With Wind Energy Supply – Impacts on CO2 Reduction and Power Quality
Svendsen, Harald Georg; Holdyk, Andrzej; Vrana, Til Kristian; Mosgren, Idun Runde; Wiik, Jan (International Conference on Offshore Mechanics and Arctic Engineering (OMAE);41, Chapter; Peer reviewed, 2022) -
Operational validation of the grid reinforcements by 2050
Jankowski, R.; Haller, M.; Petrescu, D.; Ziolek, P.; Setreus, J.; Maslo, K.; Warichet, J.; Strotmann, C.; Pestana, Rui; Carlini, E.; Vrana, Til Kristian; Grisey, Nathalie; Wilk, M.; Centero, P.; Malecki, M.; Elkington, K.; Machado, N.; Moroni, S. (Research report, 2015) -
Optimal Operation Voltage for Maximal Power Transfer Capability on Very Long HVAC Cables
Vrana, Til Kristian; Mo, Olve (Journal article; Peer reviewed, 2016)An analytical approach towards the operation of very long HVAC cables has been developed. The main physical phenomena have been expressed with simplified analytical equations. A comparison with numerical simulations has ... -
Quantifying the Market Value of Wave Power compared to Wind&Solar - a case study
Vrana, Til Kristian; Svendsen, Harald Georg (Chapter; Peer reviewed, 2021)This study discusses the market value of electricity production by different sustainable sources, and shows how it is influenced by the correlation between electricity market price and energy production. The generic ... -
Recommendations for Wind and Solar Integration Studies
Holttinen, Hannele; Kiviluoma, Juha; Flynn, D.; Dillon, J.; Mather, B.; Hodge, Bri-Mathias; Vrana, Til Kristian; Söder, Lennart; Ogimoto, Kazuhiko; Neau, Emmanuel; Cutululis, Nicolaos Antonio; Kraiczy, Markus; Carlini, Enrico Maria; Smith, J.C. (Chapter, 2017) -
Renewable Energy Complementarity (RECom) maps - a comprehensive visualisation tool to support spatial diversification
Vrana, Til Kristian; Svendsen, Harald Georg (Peer reviewed; Journal article, 2024)Maps showing the mean wind speed only give an inaccurate indication of the quality of locations for future wind power developments. Calculating the capacity factor and plotting that on a map gives a better indication of ...