Browsing Publikasjoner fra CRIStin - SINTEF Energi by Author "Farahmand, Hossein"
Now showing items 1-10 of 10
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Continuous Hydrothermal Flexibility Coordination Under Wind Power Uncertainty
Naversen, Christian Øyn; Parvania, Masood; Helseth, Arild; Farahmand, Hossein (Peer reviewed; Journal article, 2022)This paper develops a stochastic continuous-time optimization model for coordinating the operation of flexibility in a hybrid hydro-thermal-wind power system. The developed model gives insight for investigating the short-term ... -
Flexibility Characterization, Aggregation, and Market Design Trends with a High Share of Renewables: a Review
Crespo del Granado, Pedro Andres; Rajasekharan, Jayaprakash; Pandiyan, Surya Venkatesh; Tomasgard, Asgeir; Kara, Güray; Farahmand, Hossein; Jaehnert, Stefan (Peer reviewed; Journal article, 2023)Purpose of Review Balancing a large share of solar and wind power generation in the power system will require a well synchronized coordination of all possible flexibility sources. This entails developing market designs ... -
Frequency Quality in the Nordic Power System: Wind Variability, Hydro Power Pump Storage and Usage of HVDC Links
Endegnanew, Atsede Gualu; Farahmand, Hossein; Huertas-Hernando, Daniel (Peer reviewed; Journal article, 2013)This work investigates the effect that variable power production from offshore wind farms in the North Sea will have together with the use of pumped storage facilities at hydropower stations in Norway, on the Nordic ... -
Hydrothermal scheduling in the continuous-time framework
Naversen, Christian Øyn; Helseth, Arild; Li, Bosong; Parvania, Masood; Farahmand, Hossein; Catalao, João P.S. (Peer reviewed; Journal article, 2020)Continuous-time optimization models have successfully been used to capture the impact of ramping limitations in power systems. In this paper, the continuous-time framework is adapted to model flexible hydropower resources ... -
The Impact of Active Power Losses on the Wind Energy Exploitation of the North Sea
Farahmand, Hossein; Warland, Leif; Huertas-Hernando, Daniel (Peer reviewed; Journal article, 2014)Transmission active power losses can influence the distribution of power flows in the transmission grid which consequently alter the generation dispatch and scheduling through the power system. This can especially affect ... -
Long-term operational planning for flexible residential buildings with seasonal storage and capacity-based grid tariffs
Thorvaldsen, Kasper Emil; Backe, Stian; Farahmand, Hossein (Peer reviewed; Journal article, 2024)When performing operation of the energy system in a building, it is difficult to accurately represent the uncertain long-term objectives in the short-term window, and the correlation between long-term objectives. This work ... -
Modelling Minimum Pressure Height in Short-term Hydropower Production Planning
Dorn, Frederic; Farahmand, Hossein; Skjelbred, Hans Ivar; Belsnes, Michael Martin (Journal article; Peer reviewed, 2016)When planning the production for certain hydropower plants, minimum pressure is one of the major critical points. Violation of the minimum pressure causes the power plant to automatically shut down, hence violating the ... -
Multi-Market Price Forecasting in Hydro-Thermal Power Systems
Helseth, Arild; Haugen, Mari; Jaehnert, Stefan; Mo, Birger; Farahmand, Hossein; Naversen, Christian Øyn (Chapter; Peer reviewed, 2018)This paper presents a framework for price forecasting in hydro-thermal power systems. The framework consists of a long-term strategic and a short-term operational model. The strategic model provides the end-of-horizon ... -
Representation of uncertainty in market models for operational planning and forecasting in renewable power systems: a review
Haugen, Mari; Farahmand, Hossein; Jaehnert, Stefan; Fleten, Stein-Erik (Peer reviewed; Journal article, 2023)As the power system is becoming more weather-dependent and integrated to meet decarbonization targets, the level and severity of uncertainty increase and inevitably introduce higher risk of demand rationing or economic ... -
Validation study of an approximate 2014 European power-flow model using PowerGAMA
Lie, Arne Øvrebø; Rye, Eirik Andre; Svendsen, Harald Georg; Farahmand, Hossein; Korpås, Magnus (Journal article; Peer reviewed, 2017)This study presents a validation study of an approximated model of the European power system in 2014. A lightweight and open-source power-flow tool is used for this study. The tool and the model are publicly available and ...