Blar i NTNU Open på forfatter "Farahmand, Hossein"
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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 ... -
Continuous-time scheduling of a hydrothermal system with integration of offshore wind power
Øvstebø, Mari Lund; Naversen, Christian Øyn; Helseth, Arild; Farahmand, Hossein (Chapter, 2020)In this work, a continuous-time unit commitment formulation of a hydrothermal system with integration of offshore wind power is used to model the North European system operation. The cost of covering the structural imbalances ... -
Continuous-Time Unit Commitment using spline interpolation
Mathisen, Andreas Rise (Master thesis, 2019)Nåværende kraftsystemer står overfor økende utfordringer knyttet til både planleggings og sanntidsdrift av generatorenheter. Dagen-før Unit Commitment (UC) er en veletablert og viktig del av dages kraftsystemdrift, der ... -
Control strategies for residential battery energy storage systems coupled with PV systems
Ranaweera, Iromi; Midtgård, Ole-Morten; Korpås, Magnus; Farahmand, Hossein (Chapter, 2017)This paper presents, and compares the performances of four control strategies for residential battery energy storages coupled with photovoltaic (PV) energy systems. The control strategies are: 1) rule based control, 2) ... -
Convex Models for Optimal Utility-Based Distributed Generation Allocation in Radial Distribution Systems
Akbari, , Mohammad Amin; Aghaei, Jamshid; Barani, Mostafa; Niknam, Taher; Ghavidel, Sahand; Farahmand, Hossein; Korpås, Magnus; Li, Li (Journal article; Peer reviewed, 2018)This paper introduces various models for optimal and maximal utility-based distributed generation penetration in the radial distribution systems. Several problems with different probabilistic indices as objective functions ... -
Cost benefit analysis of different offshore grid topologies in the North
Larrañaga Arregui, Amaia (Master thesis, 2017)European countries are showing their willingness to reduce their greenhouse gases emissions in the coming years. For example, the Paris agreement within the United Nations Framework Convention on Climate Change (UNFCCC) ... -
Day-ahead inflow forecasting using causal empirical decomposition
Yousefi, Mojtaba; Cheng, Xiaomei; Gazzea, Michele; Wierling, August Hubert; Rajasekharan, Jayaprakash; Helseth, Arild; Farahmand, Hossein; Arghandeh, Reza (Peer reviewed; Journal article, 2022)It is essential to have accurate and reliable daily-inflow forecasting to improve short-term hydropower scheduling. This paper proposes a Causal multivariate Empirical mode Decomposition (CED) framework as a complementary ... -
Demand response in a short-term hydro-thermal multi market model.
Hefte, Solveig Bækken (Master thesis, 2020)Med den økende andelen av variable fornybare energikilder har behovet for mer balansering i nettet økt. Dette gjennom at disse forårsaker ubalanser i nettet ved at deres potensial for fleksibilitet er lavt og det samme med ... -
Designing grid tariffs and local electricity markets for peak demand reduction in distribution grids
Bjarghov, Sigurd (Doctoral theses at NTNU;2022:394, Doctoral thesis, 2022)The decarbonization of the power system is envisioned to be a key part of European Union’s goal to be climate neutral by 2050. By shifting from large fossil fuel generation to climate-friendly renewable energy sources, ... -
Developments and Challenges in Local Electricity Markets: A Comprehensive Review
Bjarghov, Sigurd; Löschenbrand, Markus; Ibn Saif, A.U.N.; Pedrero, Raquel Alonso; Pfeiffer, Christian; Khadem, Shafiuzzaman K.; Rabelhofer, Marion; Revheim, Frida Huglen; Farahmand, Hossein (Journal article; Peer reviewed, 2021)In recent years, power systems have undergone changes in technology and definition of the associated stakeholders. With the increase in distributed renewable generation and small- to medium-sized consumers starting to ... -
DSO-LEC Optimization Using Demand-Side Flexibility Resources: A Case Study From a German Distribution Grid
Bardal, Kaja; Melle, Sebastian Engmo (Master thesis, 2023)Kraftsystemet er i rask endring, og integreringen av fornybare energikilder byr på problemer når det kommer til balanse og stabilitet i nettet. Nettoperatørene står fremfor et veiskille hvor de enten kan investere store ... -
DSO-LEC Optimization Using Demand-Side Flexibility Resources: A Case Study From a German Distribution Grid
Bardal, Kaja; Melle, Sebastian Engmo (Master thesis, 2023)Kraftsystemet er i rask endring, og integreringen av fornybare energikilder byr på problemer når det kommer til balanse og stabilitet i nettet. Nettoperatørene står fremfor et veiskille hvor de enten kan investere store ... -
Economic and environmental benefits from integrated power grid infrastructure designs in the North Sea
Kristiansen, Martin; Korpås, Magnus; Farahmand, Hossein (Journal article; Peer reviewed, 2018)The North Sea Offshore Grid (NSOG) is considered an important contributor towards large-scale integration of renewables and electricity market coupling. Different typologies have been studied for such a multinational power ... -
Effective Concepts for Supplying Energy to a Large Offshore Oil and Gas Area under Different Future Scenarios
Riboldi, Luca; Cheng, Xiaomei; Farahmand, Hossein; Korpås, Magnus; Nord, Lars O. (Journal article; Peer reviewed, 2017)Different possibilities were assessed to supply energy to a large offshore oil and gas area in the North Sea. The concepts studied involved: (i) onsite power generation by means of simple gas turbine cycles, (ii) full ... -
Enabling Flexiramp Capability in Unit Commitment Formulation
Hagebø, Magnus Aas (Master thesis, 2019)Som følge av klimautfordringene har det de siste årene blitt gjort store investeringer i fornybare energikilder som sol- og vindkraft. Alle indikasjoner tyder på at denne utviklingen kommer til å fortsette ettersom ... -
Enhancing Long-Term Hydropower Scheduling Through Scenario Reduction Using Shape-Based Clustering
Lappen, Per Christian (Master thesis, 2023)Vannkraft er Norges største ressurs når det gjelder strømproduksjon. Beslutningene som tas angående håndteringen av denne svært viktige ressursen blir i dag bestemt av utdaterte optimeringsmodeller som EMPS. EMPS bruker ... -
Evaluating the optimal portfolio of VRE capacity to be integrated into the power system A case study of Zambia
Habostad, Lars Falsen (Master thesis, 2021)Republikken Zambia ligger i Sørlige Afrika. Som mange av sine naboland har landet en lav grad av elektrifisering, og under halvparten av befolkningen har tilgang til elektrisitet. I tillegg har det vannkraftdominerte ... -
Exploring prospective benefits of electric vehicles for optimal energy conditioning in distribution networks
Sasan, Pirouzi; Aghaei, Jamshid; Niknam, Taher; Farahmand, Hossein; Korpås, Magnus (Journal article; Peer reviewed, 2018)A potentially beneficial new opportunity is emerging around the exchange of energy between electric vehicles and the electrical energy grid, particularly as more low-carbon energy sources are connecting to the grid. ... -
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 ... -
Flexibility from Batteries at End-User Level: Implications for Distribution Grids
Seijas, Andres Antonio (Master thesis, 2018)