Blar i SINTEF Open på forfatter "Vrana, Til Kristian"
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Strategies for Continuous Balancing in Future Power Systems with High Wind and Solar Shares
Nordström, Henrik; Söder, Lennart; Flynn, Damian; Matevosyan, Julia; Kiviluoma, Juha; Holttinen, Hannele; Vrana, Til Kristian; van der Welle, Adriaan; Morales-España, Germán; Pudjianto, Danny; Strbac, Goran; Dobschinski, Jan; Estanqueiro, Ana; Algarvio, Hugo; Martinez, Sergio Martin; Lazaro, Emilio Gomez; Hodge, Bri-Mathias (Peer reviewed; Journal article, 2023)The use of wind power has grown strongly in recent years and is expected to continue to increase in the coming decades. Solar power is also expected to increase significantly. In a power system, a continuous balance is ... -
System impact studies for near 100% renewable energy systems dominated by inverter based variable generation
Holttinen, Hannele; Kiviluoma, Juha; Flynn, Damian; Smith, Charles; Orths, Antje; Eriksen, Peter Børre; Cutululis, Nicolaos Antonio; Söder, Lennart; Korpås, Magnus; Estanqueiro, Ana; MacDowell, Jason; Tuohy, Aidan; Vrana, Til Kristian; O'Malley, Mark (Peer reviewed; Journal article, 2020)The demand for low carbon energy calls for close to 100% renewable power systems, with decarbonization of other energy sectors adding to the anticipated paradigm shift. Rising levels of variable inverter-based renewable ... -
Technology perspectives of the North Sea Offshore and storage Network (NSON)
Vrana, Til Kristian; Torres Olguin, Raymundo E. (SINTEF Energi. Rapport;TR A7490, Research report, 2015)This report contains an overview over the most relevant technologies for realising an offshore power system in the North Sea. Also electric energy storage technologies are being considered, as these may be built offshore ... -
Towards integrated wind farm control: Interfacing farm flow and power plant controls
Kölle, Konstanze; Göcmen, Tuhfe; Garcia Rosa, Paula Bastos; Petrovic, Vlaho; Eguinoa, Irene; Vrana, Til Kristian; Long, Qian; Pettas, Vasilis; Anand, Abhinav; Bartlas, Thanasis K.; Cutululis, Nicolaos A.; Manjock, Andreas; Tande, John Olav Giæver; Ruisi, Renzo; Bossanyi, Ervin (Peer reviewed; Journal article, 2022)Concepts for control of wind farms (WFs) can be clustered into two distinct concepts, namely, wind power plant control (WPPC) and wind farm flow control (WFFC). WPPC is concerned with the connection to the power system, ... -
Transmission Line Length Estimation based on Electrical Parameters
Vrana, Til Kristian; Sperstad, Iver Bakken (Chapter; Peer reviewed, 2019) -
Vulnerability analysis of HVDC contingencies in the Nordic power system
Sperstad, Iver Bakken; Kjølle, Gerd Hovin; Gjerde, Oddbjørn; Vrana, Til Kristian; Jakobsen, Sigurd Hofsmo; Turunen, J.; Haarla, L (Chapter; Peer reviewed, 2018)In the increasingly interconnected and integrated European power system, transmission system operators need to consider new kinds of risk associated with the interconnection to neighbouring systems. For the Nordic power ... -
Wind power within European grid codes: Evolution, status and outlook
Vrana, Til Kristian; Flynn, Damian; Gómez-Lázaro, Emilio; Kiviluoma, Juha; Marcel, Davy; Cutululis, Nicolaos Antonio; Smith, J. Charles (Journal article; Peer reviewed, 2018)Grid codes are technical specifications that define the requirements for any facility connected to electricity grids. Wind power plants are increasingly facing system stability support requirements similar to conventional ...