HydroCen-publikasjoner
Publikasjoner fra HydroCen forskere
Publikasjoner fra HydroCen forskere
Publikasjoner 2021
Publikasjoner 2021
A synoptic history of the development, production and environmental oversight of hydropower in Brazil, Canada, and Norway. Alfredsen, K.; Amundsen, P.-A.; Hahn, L.; Harrison, P.M.; Helland, Ingeborg Palm; Martins, E.G.; Twardek, W.M.; Power, M..Hydrobiologia 2021 ;Volum 849. s. 269-280
Backtesting coordinated hydropower bidding using neural network forecasting. Bringedal, Amanda Sæbø; Søvikhagen, Anne-Marthe; Aasgård, Ellen Krohn; Fleten, Stein-Erik.Energy Systems, Springer Verlag 2021
Pattern Recognition of Inter-Turn Short Circuit Fault in a Synchronous Generator using Magnetic Flux. Ehya, Hossein; Nysveen, Arne. IEEE transactions on industry applications 2021
Advanced Fault Detection of Synchronous Generators using Stray Magnetic Field. Ehya, Hossein; Nysveen, Arne; Alfonso Antonino Daviu, Jose.IEEE transactions on industrial electronics (1982. Print) 2021
Efficiency of Pressurized Rock Traps for Unlined Hydropower Tunnels.Havrevoll, Ola Haugen; Vereide, Kaspar; Lia, Leif. Energies 2021 ;Volum 14.(14)
Assessing visual preferences of the local public for environmental mitigation measures of hydropower impacts—does point‐of‐view location make a difference?. Köhler, Berit; Sundt, Håkon. Water 2021 ;Volum 13.(21) s. 1-22
Long-term impact on unlined tunnels of hydropower plants due to frequent start/stop sequences. Neupane, Bibek; Panthi, Krishna Kanta.Trondheim: NTNU 2021 (ISBN 978-82-326-5384-3) 143 s. Doctoral theses at NTNU(Doctoral theses at NTNU, 2021:400)
Cyclic fatigue in unlined hydro tunnels caused by pressure transients. Neupane, Bibek; Panthi, Krishna Kanta; Vereide, Kaspar. International journal on hydropower and dams 2021 ;Volum 2021.(Issue 5) s. 46-54
Internal hydro- and wind portfolio optimisation in real-time market operations. Riddervold, Hans Ole; Aasgård, Ellen Krohn; Haukaas, Lisa; Korpås, Magnus. Renewable Energy 2021 ;Volum 173. s. 1-13
Compositional Features and Swelling Potential of Two Weak Rock Types Affecting Their Slake Durability. Selen, Lena; Panthi, Krishna Kanta; Mørk, Mai Britt Engeness; Sørensen, Bjørn Eske. Geotechnics 2021 ;Volum 1.(9) s. 172-191
Regionalized linear models for river depth retrieval using 3-band multispectral imagery and green lidar data. Sundt, Håkon; Alfredsen, Knut; Harby, Atle. Remote Sensing 2021 ;Volum 13.(19) s. 1-22
Utvidet miljødesign i demovassdrag Nea.Sundt-Hansen, Line Elisabeth Breivik; Forseth, Torbjørn; Harby, Atle; Bongard, Terje; Fossøy, Frode; Hagen, Ingerid Julie; Köhler, Berit; Majaneva, Markus; Sivertsgård, Rolf; Skoglund, Helge; Margrethe, Skår; Sundt, Håkon. Trondheim: Norsk institutt for naturforskning 2021 (ISBN 978-82-93602-23-1) 132 s. Hydrocen rapport(22)
Rock Stress Estimation for Unlined Pressure Tunnel Design. Ødegaard, Henki.
Trondheim: NTNU Universitetsbiblioteket 2021 (ISBN 978-82-326-6139-8) 151 s. Doctoral theses at NTNU(2021:345)
Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. Energies. vol. 14. 2021.
Considering sampling bias in close-kin mark–recapture abundance estimates of Atlantic salmon. Wacker, Sebastian; Skaug, Hans Julius; Forseth, Torbjørn; Solem, Øyvind; Ulvan, Eva Marita; Fiske, Peder; Karlsson, Sten. Ecology and Evolution, 2021.
Rock Stress Measurements for Unlined Pressure Tunnels: A True Triaxial Laboratory Experiment to Investigate the Ability of a Simplified Hydraulic Jacking Test to Assess Fracture Normal Stress. Ødegaard, H., Nilsen, B. Rock Mech Rock Eng (2021).
Flexible Sandtraps - Final Report. Kaspar Vereide, Wolfgang Richter, Ola Haugen Havrevoll, Kiflom Belete, Usha Shresta, Ushanth Navaratnam, Gasper Mauko, Leif Lia. HydroCen Report 20, 2021
Pattern Recognition of Inter-Turn Short Circuit Fault in a Synchronous Generator using Magnetic Flux. Ehya, Hossein; Nysveen, Arne. IEEE transactions on industry applications 2021
NTNU
Static, Dynamic and Mixed Eccentricity Faults Detection of Synchronous Generators based on Advanced Pattern Recognition Algorithm. Ehya, Hossein; Nysveen, Arne; Alfonso Antonino Daviu, Jose. 13th Edition of the IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED 2021); 2021-08-22 - 2021-08-25
NTNU
Inter-turn Short Circuit Fault Identification of Salient Pole Synchronous Generators by Descriptive Paradigm. Ehya, Hossein; Nysveen, Arne; Alfonso Antonino Daviu, Jose; Akin, Bilal. IEEE Energy Conversion Congress and Expo (ECCE 201); 2021-10-10 - 2021-10-14
NTNU
Performance Evaluation of Signal Processing Tools Used for Fault Detection of Hydro-generators Operating in Noisy Environments. Ehya, Hossein; Nysveen, Arne; Skreien, Tarjei N. IEEE transactions on industry applications 2021
NTNU
Buckling analogy for 2D deformation of placed ripraps exposed to overtopping.
Hiriyanna Rao Ravindra, Ganesh; Sigtryggsdottir, Fjola Gudrun; Lia, Leif. Journal of Hydraulic Research 2021 ;Volum 59.(1) s. 109-119
NTNU
A Conflict between Traditional Flood Measures and Maintaining River Ecosystems? A Case Study Based Upon the River Lærdal, Norway.
Juarez, Ana; Alfredsen, Knut; Stickler, Morten; Adeva Bustos, Ana; Suarez, Rodrigo; Seguin García, Sonia; Hansen, Bendik Kristoffer Torp. Water 2021 ;Volum 13.(14) s. -
ENERGISINT USN NTNU
Effects of toe configuration on throughflow properties of rockfill dams.
Kiplesund, Geir Helge; Hiriyanna Rao Ravindra, Ganesh; Rokstad, Marius Møller; Sigtryggsdottir, Fjola Gudrun. Journal of Applied Water Engineering and Research 2021
NTNU
Investigation on the Effect of Cyclic Moisture Change on Rock Swelling in Hydropower Water Tunnels. Selen, Lena; Panthi, Krishna Kanta; Vergara, Maximiliano R.; Mørk, Mai Britt Engeness. Rock Mechanics and Rock Engineering 2021 ;Volum 54. s. 463-476
NTNU
Improved design of unlined air cushion surge chambers.
Ødegaard, Henki; Vereide, Kaspar; Nilsen, Bjørn. International journal on hydropower and dams 2021 ;Volum 28.(1) s. 92-98
NTNU
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts. Szabo-Meszaros, Marcell; Silva, Ana T.; Bærum, Kim Magnus; Baktoft, Henrik; Alfredsen, Knut; Hedger, Richard David; Økland, Finn; Gjelland, Karl Øystein; Fjeldstad, Hans-Petter; Calles, Olle; Forseth, Torbjørn. Water 2021 ;Volum 13.(9)
SINTEF ENERGI NINA NTNU
Operation of Norwegian Hydropower Plants and Its Effect on Block Fall Events in Unlined Pressure Tunnels and Shafts. Neupane, Bibek; Vereide, Kaspar; Panthi, Krishna Kanta. Water 2021 ;Volum 13.(11) NTNU
Fluid Flow and Leakage Assessment Through an Unlined/Shotcrete Lined Pressure Tunnel: A Case from Nepal Himalaya. Panthi, Krishna Kanta; Basnet, Chhatra Bahadur. Rock Mechanics and Rock Engineering 2021 ;Volum 54. s. 1687-1705
NTNU
Evaluation on the Effect of Pressure Transients on Rock Joints in Unlined Hydropower Tunnels Using Numerical Simulation. Neupane, Bibek; Panthi, Krishna Kanta. Rock Mechanics and Rock Engineering 2021 ;Volum 54. s. 2975-2994
NTNU
Trailing edge vortex shedding in hydraulic turbines and the effect of stream-wise vorticity on vortex induced vibrations, 2021. Doktorgradsavhandling, Kristian Sagmo.
Intelligent Data-driven Diagnosis of Incipient Inter-turn Short Circuit Fault in Field Winding of Salient Pole Synchronous Generators. Hossein Ehya, Tarjei Skreien, Arne Nysveen. IEEE Transactions on Industrial Informatics, 2021
Comprehensive Broken Damper Bar Fault Detection of Synchronous Generators. Ehya, Hossein; Nysveen, Arne. IEEE transactions on industry applications 2021
NTNU
Publikasjoner 2020
Publikasjoner 2020
The Noise Effects on Signal Processors Used for Fault Detection Purpose, H. Ehya, T. N. Skreien, A. Nysveen and R. Nilssen, 2020 23rd International Conference on Electrical Machines and Systems (ICEMS), Hamamatsu, Japan, 2020, pp. 183-188,
Riprap to resist wave and ice loads acting on the upstream slope of an embankment dam. Sigtryggsdottir, Fjola Gudrun. I: PROCEEDINGS OF THE 25th INTERNATIONAL SYMPOSIUM ON ICE Trondheim, Norway, 23rd – 25th November 2020. IAHR International Symposium on Ice 2020 ISBN 978-82-7598-120-0.
NTNU
Modelling of Environmental Constraints for Hydropower Optimization Problems – a Review. Schaffer, Linn Emelie; Adeva Bustos, Ana; Bakken, Tor Haakon; Helseth, Arild; Korpås, Magnus. I: 2020 17th International Conference on the European Energy Market - EEM. IEEE 2020 ISBN 978-1-7281-6919-4. ENERGISINT NTNU
Nonconvex Environmental Constraints in Hydropower Scheduling. Helseth, Arild; Mo, Birger; Hågenvik, Hans Olaf. I: 2020 International Conference on Probabilistic Methods Applied to Power Systems - PMAPS. IEEE 2020 ISBN 978-1-7281-2822-1.
ENERGISINT
Condition Monitoring of Wound Field Synchronous Generator under Inter-turn Short Circuit Fault utilizing Vibration Signal, H. Ehya, G. Lyng Rødal, A. Nysveen and R. Nilssen, 23rd International Conference on Electrical Machines and Systems (ICEMS), Hamamatsu, Japan, 2020, pp. 177-182
Pattern Recognition of Inter-Turn Short Circuit Fault in Wound Field Synchronous Generator via Stray Flux Monitoring. H. Ehya, A. Nysveen and R. Nilssen. 2020 International Conference on Electrical Machines (ICEM), Gothenburg, 2020, pp. 2631-2636
Detailed Magnetic Field Monitoring of Short Circuit Defects of Excitation Winding in Hydro-generator. H. Ehya, A. Nysveen, I. L. Groth and B. A. Mork. 2020 International Conference on Electrical Machines (ICEM), Gothenburg, 2020, pp. 2603-2609,
A Practical Approach for Static Eccentricity Fault Diagnosis of Hydro-Generators. H. Ehya, A. Nysveen and R. Nilssen. 2020 International Conference on Electrical Machines (ICEM), Gothenburg, 2020, pp. 2569-2574,
Time Domain Signature Analysis of Synchronous Generator under Broken Damper Bar Fault. H. Ehya, A. Nysveen, R. Nilssen and U. Lundin. IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal, 2019, pp. 1423-1428
Impact on hydropower plant income from participating in reserve capacity markets. Haugen, Mari; Schaffer, Linn Emelie; Mo, Birger; Helseth, Arild. I: 2020 17th International Conference on the European Energy Market - EEM. IEEE 2020 ISBN 978-1-7281-6919-4. ENERGISINT
Variable Speed Hydropower Conversion and Control. Reigstad, Tor Inge; Uhlen, Kjetil. IEEE transactions on energy conversion 2020 ;Volum 35.(1) s. 386-393
NTNU
Buckling analogy for 2D deformation of placed ripraps exposed to overtopping.Hiriyanna Rao Ravindra, Ganesh; Sigtryggsdottir, Fjola Gudrun; Lia, Leif.Journal of Hydraulic Research 2020, NTNU
Description of failure mechanism in placed riprap on steep slope with unsupported toe using smartstone probes. Hiriyanna Rao Ravindra, Ganesh; Gronz, Oliver; Dost, Bastian; Sigtryggsdottir, Fjola Gudrun. Engineering structures 2020 ;Volum 221. NTNU
Physical model study on discharge over a dam due to landslide generated waves. Tessema, Netsanet; Sigtryggsdottir, Fjola Gudrun; Lia, Leif; Jabir, Asie.Water 2020 ;Volum 12.(1) s. 1-19 NTNU
Pool-Type Fishway Design for a Potamodromous Cyprinid in the Iberian Peninsula: The Iberian Barbel—Synthesis and Future Directions. Silva, Ana T.; Bermúdez, María; Santos, Jose Maria; Rabunal, Juan R.; Puertas, Jerónimo. Sustainability 2020 ;Volum 12.
NINA
Experimental and Numerical Determination of the Head Loss of a Pressure Driven Flow through an Unlined Rock-Blasted Tunnel. Aberle, Jochen; Henry, Pierre-Yves T; Kleischmann, Fabian; Navaratnam, Christy Ushanth; Vold, Mari; Eikenberg, Ralph; Olsen, Nils Reidar Bøe.ater 2020 ;Volum 12.(12) NTNU NMBU
Applying the ProdRisk- SHOP simulator for investment decisions. Birger Mo, Hans Olaf Hågenvik SINTEF Energy Research. HydroCen Report 2020
AlternaFuture - Final Report. Vereide, Kaspar; Mo, Birger; Forseth, Torbjørn; Lia, Leif; Nysveen, Arne; Dahlhaug, Ole Gunnar; Schäffer, Linn Emelie; Bustos, Ana Adeva; Sundt-Hansen, Line; Øvregård, Eirik; Glimen, Pål; Hesthagen, Trygve; Skår, Margrete; Nielsen, Torbjørn Kristian. HydroCen Report 18, 2020.
Flomdempingstjenester i utvidet miljødesign - Beskrivelse og uttesting av system for klassifisering av flomdempingspotensial i regulerte vassdrag. Hansen, Bendik; Harby, Atle. Norwegian Research Centre for Hydropower Technology. 2020.
Multimarket modelling. Haugen, M., Schäffer, L.E.HydroCen Report 16. Norwegian Research Centre for Hydropower Technology. 2020.
Modelling batteries. Documentation of testing of using hydropower modules to model batteries in ProdRisk and EMPSW. Schäffer, L.E. HydroCen Report 15. Norwegian Research Centre for Hydropower Technology. 2020.
Can Energy Depletion of Wild Atlantic Salmon Kelts Negotiating Hydropower Facilities Lead to Reduced Survival? Baktoft, Henrik; Gjelland, Karl Øystein; Szabo-Meszaros, Marcell; Silva, Ana T.; Riha, Milan; Økland, Finn; Alfredsen, Knut; Forseth, Torbjørn. Sustainability 2020 ;Volum 12.(18) ENERGISINT NINA NTNU
Detailed engineering geological assessment of a shotcrete lined pressure tunnel in the Himalayan rock mass conditions: a case study from Nepal. Basnet, Chhatra Bahadur; Panthi, Krishna Kanta. Bulletin of Engineering Geology and the Environment 2020 ;Volum 79.(Issue 1) s. 153-184 NTNU
Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar.Journal of Fluids Engineering - Trancactions of The ASME 2020 ;Volum 142.(10) NTNU
Comparison of Intelligent Algorithms with FACTS Devices for Minimization of Total Power Losses. Monshizadeh, Shohreh; Hegglid, Gunne John; Hagen, Svein Thore. Advances in Intelligent Systems and Computing 2020 ;Volum 926. s. 120-131, USN
Effect of power plant operation on pore pressure in jointed rock mass of an unlined hydropower tunnel: An experimental study. Neupane, Bibek; Panthi, Krishna Kanta; Vereide, Kaspar. Rock Mechanics and Rock Engineering 2020 ;Volum 53.(Issue 7) s. 3073-3092
NTNU
An analysis on the slaking and disintegration extent of weak rock mass of the water tunnels for hydropower project using modified slake durability test. Selen, Lena; Panthi, Krishna Kanta; Vistnes, Gunnar. Bulletin of Engineering Geology and the Environment 2020 ;Volum 79.(Issue 4) s. 1919-1937, NTNU
An analysis on the slaking and disintegration extent of weak rock mass of the water tunnels for hydropower project using modified slake durability test. Selen, Lena; Panthi, Krishna Kanta; Vistnes, Gunnar. Bulletin of Engineering Geology and the Environment 2020 ;Volum 79.(Issue 4) s. 1919-1937, NTNU
Tidskriftspublikasjoner 2019
Tidskriftspublikasjoner 2019
Publikasjoner 2019
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta.
Evaluation on the Minimum Principal Stress State and Potential Hydraulic Jacking from the Shotcrete-Lined Pressure Tunnel: A Case from Nepal. Rock Mechanics and Rock Engineering 2019 s. 1-23.
NTNU
Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable & Sustainable Energy Reviews 2019 ;Volum 103. s. 109-121
NTNU
I. Graabak, M. Korpås, S. Jaehnert, M. Belsnes.
Balancing future variable wind and solar power in Central-West Europe with Norwegian hydropower. Energy, Volume 168, 1 Februar 2019, Pages 870-882.
SINTEF
Tengs, Erik Os; Charrassier, Flora; Storli, Pål-Tore Selbo; Holst, Martin. (2019)
Model Order Reduction Technique Applied on Harmonic Analysis of a Submerged Vibrating Blade International Journal of Applied Mechanics and Engineering vol. 24 (1).
Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery 2019; Volum 2019.
NTNU
Konferansepublikasjoner 2019
Konferansepublikasjoner 2019
Konferansepublikasjoner 2019
Sagmo, Kristian Forfot; Tengs, Erik Os; Bergan, Carl Werdelin; Storli, Pål-Tore Selbo.
PIV measurements and CFD simulations of a hydrofoil at lock-in. IOP Conference Series: Earth and Environment 2019
NTNU
Kleiven, Andreas; Steinsland, Ingelin.
Inflow Forecasting for Hydropower Operations: Bayesian Model Averaging for Postprocessing Hydrological Ensembles. I: Proceedings of the 6th International Workshop on Hydro Scheduling in Competitive Electricity Markets. Springer Nature 2019 ISBN 978-3-030-03311-8. s. 33-40
NTNU UiB
Selen, Lena; Panthi, Krishna Kanta.
Influence of slaking and disintegration effect on the stability of water tunnels for hydropower. Proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-11
NTNU
Mo, Birger; Martino, Sara; Naversen, Christian Øyn; Aronsen, Gunnar; Rismark, Ole.
Benchmarking Hydro Operation by Use of a Simulator. I: Proceedings of the 6th International Workshop on Hydro Scheduling in Competitive Electricity Markets. Springer Nature 2019 ISBN 978-3-030-03311-8. s. 41-51
ENERGISINT
Nilsen, Bjørn.
Tunnelling technology in Norway. CSM lunch and learn seminar; 2019-01-30 - 2019-01-30
NTNU
Forseth, Torbjørn.
Overview of SafePass & HydroCen - Solutions for downstream migration of fish past hydropower installations. Workshop SafePass, HydroCen & FitHydro; 2019-03-18 - 2019-03-19
NINA
Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environment 2019 ;Volum 240.
NTNU
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine. IOP Conference Series: Earth and Environment 2019 ;Volum 240. s. -
NTNU
Neupane, Bibek; Panthi, Krishna Kanta.
Effect of pressure fluctuations in long-term stability of unlined pressure shaft at Svandalsflona Hydropower project, Norway. I: ARMS10 10th Asian Rock Mechanics Symposium The ISRM International Symposium for 2018, 29 Oct - 3 Nov, Singapore - proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-11
NTNU
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur.
State-of-the-art design guidelines in the use of unlined pressure tunnels / shafts for hydropower scheme. I: ARMS10 10th Asian Rock Mechanics Symposium The ISRM International Symposium for 2018, 29 Oct - 3 Nov, Singapore - proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-13
NTNU
Schäffer, Linn Emelie; Haugen, Mari.
Analysis from HydroCen. User Meeting Hydro Scheduling; 2019-03-13 - 2019-03-14
ENERGISINT
Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os.
Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environment 2019 ;Volum 240. s. 1-9.
NTNU
Wahl, Per Eilif.
Connecting ProdRisk. User Meeting Hydro Scheduling; 2019-03-13 - 2019-03-14
ENERGISINT
Håkon Sundt
HydroCen og fjernmålingsprosjektet. Terratec.
Atle Harby
Fleip, ren synsing eller fakta om vannkraft? - Henger kabler, høye priser og økt effektkjøring sammen? - Slipper vannkraftmagasin ut klimagasser? PTK. Energi Norge
Fleten, Stein-Erik; Löhndorf, Nils; Dimoski, Joakim; Nersten, Sveinung.
Dynamic hedging for the real option management of electricity storage. Workshop Nord U Bodø; 2019-05-08 - 2019-05-09
NTNU
Schäffer, Linn Emelie.
Hydropower flexibility - enabler for intermitted technology storage. Hydropower Norway Conference 2019; 2019-05-28 - 2019-05-28
ENERGISINT
Schäffer, Linn Emelie; Graabak, Ingeborg.
Power Price Scenarios - Results from the Reference scenario and the Low Emission scenario. TRONDHEIM: Norwegian Research Centre for Hydropower Technology 2019 (ISBN 978-82-93602-04-0) 40 s.
ENERGISINT NTNU
Storli, Pål-Tore Selbo.
Vil stilne syngende skovler. Energiteknikk [Fagblad] 2019-04-01
NTNU
Tidsskriftspublikasjoner 2018
Tidsskriftspublikasjoner 2018
Konferansepapirer 2018
Valavi, Mostafa; Jørstad, Kari Gjerde; Nysveen, Arne.
Electromagnetic analysis and electrical signature-based detection of rotor inter-turn faults in salient-pole synchronous machine. IEEE transactions on magnetics 2018 ;Volum 54.(9) s. 1-9.
Valavi, Mostafa; Devillers, Emile; Le Besnerais, Jean; Nysveen, Arne; Nilsen, Influence of Converter Topology and Carrier Frequency on Airgap Field Harmonics, Magnetic Forces, and Vibrations in Converter-Fed Hydropower Generator. IEEE transactions on industry applications. vol. 54 (3). Roy. (2018)
Olsen, Nils Reidar Bøe; Hillebrand, Gudrun.
Long-time 3D CFD modelling of sedimentation with dredging in a hydropower reservoir. Journal of Soils and Sediments 2018 ;Volum 18.(9) s. 3031-3040
NTNU
Valavi, Mostafa; Jørstad, Kari Gjerde; Nysveen, Arne.
Electromagnetic analysis and electrical signature-based detection of rotor inter-turn faults in salient-pole synchronous machine. IEEE transactions on magnetics 2018 ;Volum 54.(9) s. 1-9
NTNU
Fleten, Stein-Erik; Mauritzen, Johannes; Ullrich, Carl J..
Skår, Margrete; Köhler, Berit.
Utvidet miljødesign: Ulike metoder for kunnskapsutvikling om rekreasjonsinteresser og landskapsopplevelse i og langs regulerte elver og vassdrag. Trondheim: Norwegian Research Centre for Hydropower Technology 2018 (ISBN 978-82-93602-01-9) 55 s. Hydrocen rapport(2). NINA
Linn Emelie Schäffer
Future market structures and prices: workshop summary. HydroCen rapport ISSN/ISBN 2535-5392/978-82-93602-00-2
Thomas Michael Welte, Jørn Foros, M.H. Nielsen, M. Adsten
MonitorX Experience from a Norwegian-Swedish research project on industry 4.0 and digitalization applied to fault detection and maintenance of hydropower plants. International journal on hydropower and dams.
Zinke, Peggy; Lindholm, Markus; Dervo, Børre; Gosselin, Marie-Pierre; Harby, Atle; Kile, Maia R; Kling, Johan; Sundt, Håkon
Kartlegging av hydromorfologi i norske elver - erfaringer med ulike metoder i Surna og Gudbrandsdalslågen. Vann. 2018, 53 (2), 168-179
Sundt-Hansen LE, Hedger RD, Ugedal O, Diserud OH, Finstad AG, Sauterleute JF, Tøfte L, Alfredsen K, Forseth T.
Modelling climate change effects on Atlantic salmon: Implications for mitigation in regulated rivers. Science of The Total Environment. Volumes 631–632, 1 August 2018, Pages 1005-1017
Hedger, Richard David; Sauterleute, Julian Friedrich; Sundt-Hansen, Line Elisabeth Breivik; Forseth, Torbjørn; Ugedal, Ola; Diserud, Ola Håvard; Bakken, Tor Haakon
Modelling the effect of hydropeaking‐induced stranding mortality on Atlantic salmon population abundance. Ecohydrology 11(5):e1960 · March 2018
M N Hjelmeland, A Helseth and M Korpås
Impact of Modelling Details on the Generation Function for a Norwegian Hydropower Producer. Journal of Physics: Conference Series, Volume 1042, conference 1
Fjeldstad, Hans-Petter; Pulg, Ulrich; Forseth, Torbjørn
Safe two-way migration for salmonids and eel past hydropower structures in Europe: a review and recommendations for best-practice solutions. Marine and Freshwater Research. 2018, 69 1834-1847.
Thomas Schleker a, Hans-Petter Fjeldstad b,
Hydropower and fish – Report and messages from workshop on research and innovation in the context of the European policy framework. Science of The Total Environment. Volume 647, 10 January 2019, Pages 1368-1372
Trivedi, Chirag; Nilsen, Roy.
Active Compensation of Unbalanced Load Currents in Grid Connected Voltage Source Converters. ECCE Asia – ICPE 2019, Busan, South Korea
Konferansepublikasjoner 2018
Konferansepublikasjoner 2018
Konferansepapirer 2018
Löschenbrand, Markus; Korpås, Magnus; Fodstad, Marte
Market Power in Hydro-Thermal Systems with Marginal Cost Bidding. 15th International Conference on the European Energy Market - EEM DOI: 10.1109/EEM.2018.8469984
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur.
A dynamic stress state analysis at the pressure tunnel of Upper Tamakoshi HPP, Nepal. I: Rock Dynamics and Applications 3: Proceedings of the 3rd International Confrence on Rock Dynamics and Applications (RocDyn-3), June 26-27, 2018, Trondheim, Norway. CRC Press 2018 ISBN 978-0-8153-9667-3. s. 251-257
NTNU
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur.
State-of-the-art design guidelines in the use of unlined pressure tunnels / shafts for hydropower scheme. I: ARMS10 10th Asian Rock Mechanics Symposium The ISRM International Symposium for 2018, 29 Oct - 3 Nov, Singapore - proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-13
NTNU
Ruud, Audun; Köhler, Berit; Aas, Øystein.
Prosjekt 4.1: Realizing value added environmental solutions Funn fra deprosjekt 4.1.1: How are environmental measures realized in European hydropower?. HydroCen Fagutvalgsmøte; 2018-09-19 - 2018-09-19
NINA NMBU
Welte, Thomas Michael; Foros, Jørn; Nielsen, M.H.; Adsten, M..
MonitorX – Experience from a Norwegian-Swedish research project on industry 4.0 and digitalization applied to fault detection and maintenance of hydropower plants. I: Hydro 2018 - Progress through partnership, Gdansk, Poland, 15-17 October 2018. : International journal on hydropower and dams 2018 ISBN 0-000-00001-9.
Ødegaard, Henki; Nilsen, Bjørn.
Engineering Geological Investigation and Design of Transition Zones in Unlined Pressure Tunnels. ARMS10; 2018-10-29 - 2018-11-02
Røse, Torunn Engen; Vereide, Kaspar; Koksæter, Arne; Dalviken, Kjell; Skuncke, Olaf; Børresen, Bjarne.
Design of an ACSC for Upper Kon Tum HPP. Asia2018; 2018-03-13 - 2018-03-15
NTNU
Selen, Lena; Panthi, Krishna Kanta.
Influence of slaking and disintegration effect on the stability of water tunnels for hydropower. I: ARMS10 10th Asian Rock Mechanics Symposium The ISRM International Symposium for 2018, 29 Oct - 3 Nov, Singapore - proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-11
NTNU
Selen, Lena; Panthi, Krishna Kanta; Vergara, Maximilliano R..
Swelling pressures of some rocks using different test procedures. I: Geomechanics and Geodynamics of Rock Masses: Proceedings of the 2018 European Rock Mechanics Symposium. CRC Press 2018 ISBN 978-1-138-61645-5. s. 401-410
NTNU
Storli, Pål-Tore Selbo.
Simulation and Discussion of Models for Hydraulic Francis Turbine Simulations. MathMod 2018; 2018-02-20 - 2018-02-23
NTNU
Hiriyanna Rao Ravindra, Ganesh; Sigtryggsdottir, Fjola Gudrun; Lia, Leif.
EVALUATION OF DESIGN CRITERIA FOR DOWNSTREAM RIPRAP OF ROCKFILL DAMS. I: Proceedings of the 26th International Congress of the International Commission of Large Dams (ICOLD), Q.101, R.72, Vienna, Austria, 1-7 July 2018. CRC Press 2018 ISBN 978-1-138-61228-0. s. 1194-1209
NTNU
Ødegaard, Henki; Vereide, Kaspar.
Uforede luftputekammer - Tre forslag til designforbedringer. I: Fjellsprengningsteknikk Bergmekanikk/Geoteknikk 2018. Oslo: Norsk Forening for Fjellsprengningsteknikk 2018 ISBN 978-82-8208-062-0. s. 10.1-10.17
NTNU
Askeland, Magnus; Jaehnert, Stefan; Mo, Birger; Korpås, Magnus.
Demand response with shiftable volume in an equilibrium model of the power system. I: 12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017. IEEE Press 2017 ISBN 978-1-5090-4238-8. ENERGISINT NTNU
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta.
Topographic Effect in the Selection of Unlined Pressure Tunnels / Shafts - A Review of a case from Nepal Himalaya. I: Proceedings of the ITA World Tunnel Congress 2017. : NFF - Norwegian Tunnelling Society 2017 ISBN 978-82-92641-40-8. s. NTNU
Helseth, Arild; Haugen, Mari; Jaehnert, Stefan; Mo, Birger; Farahmand, Hossein; Naversen, Christian Øyn
Multi-Market Price Forecasting in Hydro-Thermal Power Systems. 2018 15th International Conference on the European Energy Market - EEM
Sanz-Bobi, M.A.; Welte, Thomas Michael; Eilertsen, L.
Anomaly indicators for Kaplan turbine components based on patterns of normal behavior. Safety and Reliability – Safe Societies in a Changing World. Proceedings of ESREL 2018
Bjørn Nilsen
Cases of tunnel instability and cave in - lessons learnt and measures for prevention. Proc. World Tunnel Congress 2018, Dubai
Brende, Hege; Lia, Leif; Nilsen, Bjørn.
FME HydroCen - Norsk storsatsning på vannkraft. I: Fjellsprengningsteknikk Bergmekanikk/Geoteknikk 2018. Oslo: Norsk Forening for Fjellsprengningsteknikk 2018 ISBN 978-82-8208-062-0. s.7.1-7.10. NTNU
Olsen, Nils Reidar Bøe; Haun, Stefan.
Numerical modelling of bank failures during reservoir draw-down. E3S Web of Conferences 2018 ;Volum 40. s. 1-8
NTNU
Fjeldstad, H-P., Pulg, U. & Forseth, T
Sikker toveis fiskevandring forbi vannkraftverk. Kunnskapsoppsummering og mønsterpraksis. SINTEF Energi AS
Hedger R. D., Sauterleute J., Sundt-Hansen L.E, Forseth T., Ugedal, O., Diserud O., Bakken T. H.
Dynamically modelling the sensitivity of an Atlantic salmon population to hydropeaking-induced stranding mortality. EcoHydrology
Lena Selen, Krishna Panthi, Maximilliano R. Vergara
Swelling pressureof some rocks using two different test procedures. Eurorock 2018, St. Peterburg, Russia
Szabo-Meszaros, M., Navaratnam, C.U., Aberle, J., Silva, T.A., Forseth, T., Calles, O., Fjeldstad, H-P. & Alfredsen, K.
Experimental hydraulics on fish-friendly trash-racks: an ecological approach. Ecological Engineering
Valavi, Mostafa; Nysveen, Arne
Variable-Speed Operation of Hydropower Plants: Past, Present, and Future. IEEE
Engevik, Erlend Løklingholm; Valavi, Mostafa; Nysveen, Arne.
Analysis of Additional Eddy-Current Copper Losses in Large Converter-Fed Hydropower Generators. I: Proceedings 2018 XIII International Conference on Electrical Machines (ICEM). IEEE 2018 ISBN 978-1-5386-2477-7. s. 1067-1073. NTNU
Fleten, Stein-Erik; Klæboe, Gro.
Coordinated vs sequential bidding into short-term electricity markets. 7th International Ruhr Energy Conference; 2018-09-24 - 2018-09-25. NTNU
Fleten, Stein-Erik; Klæboe, Gro.
Optimization-based offering of hydropower into short-term electricity markets. Optimization course; 2018-10-24 - 2018-10-24. NTNU
Bakken, Stein Arne; Vereide, Kaspar
Unik styring på Tonstad kraftverk. Energiteknikk : fagbladet for energibransjen 2018 (11)
Forseth, Torbjørn.
HydroCen og miljødesign Nea. Åpent folkemøte; 2018-10-24 - 2018-10-24. NINA
Forseth, Torbjørn.
Nye løsninger for fiskevandringer forbi kraftverk. Teknologidagen Hydro Energi; 2018-11-22 - 2018-11-22. NINA
Forseth, Torbjørn.
SafePass - et kvantesprang for kunnskap om vandringsløsninger i Norge. Kraftverkshydrologi og miljøforhold; 2018-11-20 - 2018-11-21. NINA
Helland, Ingeborg Palm.
Fremtidens energisystem – på lag med naturen?. Energiforskningskonferansen; 2018-05-30. NINA
Helland, Ingeborg Palm; Eloranta, Antti; Power, Michael.
Towards an environmental design of hydropower operations in reservoirs. ASLO Summer meeting 2018; 2018-06-10 - 2018-06-15. NINA
Kleiven, Andreas; Fleten, Stein-Erik; Fram, Benjamin P.; Ullrich, Carl J..
Optimal Inspection Strategies for Turbine Runners in Hydropower Plants. INFORMS Annual Meeting 2018; 2018-11-04 - 2018-11-07. NTNU NHH
Havrevoll, Ola Haugen; Vereide, Kaspar; Almeland, Silje Kreken.
A new self-flushing rock trap concept for pump-storage plants. Particles in Europe; 2018-10-15 - 2018-10-17.
Kleiven, Andreas; Steinsland, Ingelin.
Inflow Forecasting for Hydropower Operations: Bayesian Model Averaging for Postprocessing Hydrological Ensembles. I: Proceedings of the 6th International Workshop on Hydro Scheduling in Competitive Electricity Markets. Springer Nature 2019 ISBN 978-3-030-03311-8. s. 33-40. NTNU UiB
Korpås, Magnus.
Small-scale vs large-scale flexibility options in high-RES power systems. The MIT Energy Initiative Electric Power Systems Center Fall Workshop; 2018-11-14 - 2018-11-14. NTNU
Mo, Birger; Helseth, Arild; Warland, Geir.
Modeling and Quantifying the Importance of Snow Storage Information for the Nordic Power System. I: 2018 15th International Conference on the European Energy Market - EEM. IEEE conference proceedings 2018 ISBN 978-1-5386-1488-4. ENERGISINT
Nilsen, Bjørn.
Hovedårsaker til stabilitetsproblemer og ras i vanntunneler. Produksjonsteknisk konferanse 2018; 2018-03-05 - 2018-03-07. NTNU
Nilsen, Bjørn.
Stability of rock slopes and dam foundations. Workshop on Tunnelling and Hydropower issues; 2018-03-18 - 2018-03-18. NTNU
Panthi, Krishna Kanta.
Issues related to the long-term stability of unlined water tunnels in Norwegian hydropower projects – a case review. HydroVision International 2018; 2018-06-26 - 2018-06-28. NTNU
Lia, Leif; Vereide, Kaspar; Guddal, Rolv; Belete, Kiflom Wasihun.
Dam Deg Spillway - Innovative solutions developed and implemented. Hydro2018; 2018-10-14 - 2018-10-17
NTNU
Neupane, Bibek; Panthi, Krishna Kanta.
Effect of pressure fluctuations in long-term stability of unlined pressure shaft at Svandalsflona Hydropower project, Norway. I: ARMS10 10th Asian Rock Mechanics Symposium The ISRM International Symposium for 2018, 29 Oct - 3 Nov, Singapore - proceedings. : International Society for Rock Mechanics 2019 ISBN 978-981-11-9003-2. s. 1-11
NTNU
Tidsskriftspublikasjoner 2017
Tidsskriftspublikasjoner 2017
Konferansepapirer 2017
Askeland, Magnus; Jaehnert, Stefan; Mo, Birger; Korpås, Magnus.
Demand response with shiftable volume in an equilibrium model of the power system. I: 12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017. IEEE Press 2017 ISBN 978-1-5090-4238-8.
ENERGISINT NTNU
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta.
3D in-Situ Stress Model of Upper Tamakoshi Hydroelectric Project Area. Hydro Nepal: Journal of Water, Energy and Environment 2017 ;Volum July Issue.(21) s. 34-41
NTNU
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME 2017 ;Volum 139.(9) s. -
NTNU
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad.
Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering 2017 ;Volum 6.(2) s. 218-230
NTNU
Esmaeili, Taymaz; Sumi, Tetsuya; Kantoush, Sameh A; Kubota, Y; Haun, Stefan; Ruther, Nils.
Three-Dimensional Numerical Study of Free-Flow Sediment Flushing to Increase the Flushing Efficiency: A Case-Study Reservoir in Japan. Water 2017 ;Volum 9.(11) s. 1-22
NTNU
Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian.
Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems 2017 ;Volum 10.(4) s. 345-354
NTNU
Hillebrand, Gudrun; Klassen, Irina; Olsen, Nils Reidar Bøe.
3D CFD modelling of velocities and sediment transport in the Iffezheim hydropower reservoir. Hydrology Research 2017 ;Volum 48.(1) s. 147-159
NTNU
Olsen, Nils Reidar Bøe.
Numerical modelling of downstream-migrating antidunes. Earth Surface Processes and Landforms 2017 ;Volum 42. s. 2393-2401
NTNU
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur.
Design review of the headrace system for the Upper Tamakoshi project, Nepal. International journal on hydropower and dams 2017 ;Volum 24.(Issue 1) s. 60-67
NTNU
Rathore, Ajender; Panthi, Krishna Kanta.
Evaluation of Powerhouse Cavern for the SachKhas Hydroelectric Project in Himachal, India. Hydro Nepal: Journal of Water, Energy and Environment 2017 ;Volum January.(20) s. 23-30
NTNU
Richter, Wolfgang; Vereide, Kaspar; Zenz, Gerald.
Upgrading of a Norwegian pressurized sand trap combined with an open air surge tank. Geomechanics and Tunneling 2017 ;Volum 10.(5) s. 620-624
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Effects of sediment erosion in guide vanes of Francis turbine. Wear 2017 ;Volum 390-391. s. 104-112
NTNU
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy 2017 ;Volum 113. s. 397-410
NTNU
Ødegård, Heidi Liljeblad; Eidsvik, Jo; Fleten, Stein-Erik.
Value of information analysis of snow measurements for the scheduling of hydropower production. Energy Systems, Springer Verlag 2017 s. -
NTNU
Konferansepublikasjoner 2017
Konferansepublikasjoner 2017
Konferansepapirer 2017
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta.
Topographic Effect in the Selection of Unlined Pressure Tunnels / Shafts - A Review of a case from Nepal Himalaya. I: Proceedings of the ITA World Tunnel Congress 2017. : NFF - Norwegian Tunnelling Society 2017 ISBN 978-82-92641-40-8. s. -
NTNU
Engevik, Erlend L.; Hestengen, Truls; Valavi, Mostafa; Nysveen, Arne.
Effects of lifting reactance requirements on the optimal design of converter-fed synchronous hydrogenerators. I: 2017 IEEE International Electric Machines and Drives Conference - IEMDC. IEEE conference proceedings 2017 ISBN 9781509042814.
NTNU
Engevik, Erlend L.; Valavi, Mostafa; Nysveen, Arne.
Influence of winding layout and airgap length on radial forces in large synchronous hydrogenerators. I: 2017 20th International Conference on Electrical Machines and Systems (ICEMS). IEEE conference proceedings 2017 ISBN 978-1-5386-3246-8.
NTNU
Panthi, Krishna Kanta.
Review on the prevailing methods for the prediction of potential rock burst / rock spalling in tunnels. I: Fjellsprengningsdagen, Bergmekanikkdagen, Geoteknikkdagen. Oslo: Norsk Forening for Fjellsprengningsteknikk, Norsk Bergmekanikkgruppe og Norsk Geoteknisk Forening 2017 ISBN 978-82-8208-059-0. s. 29.1-29.8
NTNU
Mostafa Valavi, Arne Nysveen, and Roy Nilsen
Investigation of magnetic field and radial force harmonics in a hydrogenerator connected to a three-level NPC converter. I: 43rd Annual Conference of the IEEE Industrial Electronics Society (IECON 2017). IEEE conference proceedings 2017 ISBN 978-1-5386-1127-2.
NTNU
Valavi, Mostafa; Nysveen, Arne; Nilsen, Roy; Le Besnerais, Jean; Devillers, Emile.
Analysis of magnetic forces and vibration in a converter-fed synchronous hydrogenerator. I: IEEE Energy Conversion Congress and Expo (ECCE) 2017. IEEE conference proceedings 2017 ISBN 978-1-5090-2998-3.
NTNU
Nilsen, Bjørn.
Geotechnical investigation and design principles - application of Eurocode 7 in Norwegian tunnelling 2) Tunnelling methodology for difficult rock mass conditions in deep subsea tunnels. Visit/seminar; 2017-11-30 - 2017-11-30. NTNU
Lia, Leif; Hiriyanna Rao Ravindra, Ganesh; Hiller, Priska Helene; Sigtryggsdottir, Fjola Gudrun.
Overtopping erosion of rockfill dams – Research in Norway. International Workshop on overflowing erosion of dams and dikes; 2017-12-11 - 2017-12-14
NTNU
Valavi, Mostafa.
Fractional-slot windings and vibrations. Forum for Generatorer; 2017-10-25 - 2017-10-26. NTNU
Valavi, Mostafa.
On-line detection of rotor inter-turn faults using electrical signature analysis. Forum for Generatorer; 2017-10-25 - 2017-10-26. NTNU
Ødegård, Heidi Liljeblad; Eidsvik, Jo; Fleten, Stein-Erik.
Value of information analysis of snow measurements for the scheduling of hydropower production. Energy Systems, Springer Verlag 2017 s. -. NTNU
Nilsen, Bjørn.
Hydropower development in Norway - background, main achievements and research plans 2) Geotechnical investigation and design principles - application of Eurocode 7 in Norwegian tunnelling. Visit/seminar; 2017-11-28 - 2017-11-28. NTNU
Nysveen, Arne; Dahlhaug, Ole Gunnar.
Bruk av variabelt turtall i norske kraftverk. Elektrisk utrustning og nettintegrasjon Turbinteknologi. Produksjonsteknisk konferanse (PTK 2017); 2017-03-06 - 2017-03-08. NTNU
Engevik, Erlend L..
Design av generator for varierande turtal. Generatorforum; 2017-10-25 - 2017-10-26. NTNU
Engevik, Erlend L.; Hestengen, Truls; Valavi, Mostafa; Nysveen, Arne.
Effects of lifting reactance requirements on the optimal design of converter-fed synchronous hydrogenerators. I: 2017 IEEE International Electric Machines and Drives Conference - IEMDC. IEEE conference proceedings 2017 ISBN 9781509042814. NTNU
Engevik, Erlend L.; Valavi, Mostafa; Nysveen, Arne.
Influence of winding layout and airgap length on radial forces in large synchronous hydrogenerators. I: 2017 20th International Conference on Electrical Machines and Systems (ICEMS). IEEE conference proceedings 2017 ISBN 978-1-5386-3246-8. NTNU
Nilsen, Bjørn.
Geotechnical investigation and design principles - application of Eurocode 7 in Norwegian tunnelling 2) Tunnelling methodology for difficult rock mass conditions in deep subsea tunnels. Visit/seminar; 2017-11-30 - 2017-11-30. NTNU
Nilsen, Bjørn.
Hydropower development in Norway - background, main achievements and research plans 2) Geotechnical investigation and design principles - application of Eurocode 7 in Norwegian tunnelling. Visit/seminar; 2017-11-28 - 2017-11-28. NTNU
Nysveen, Arne; Dahlhaug, Ole Gunnar.
Bruk av variabelt turtall i norske kraftverk. Elektrisk utrustning og nettintegrasjon Turbinteknologi. Produksjonsteknisk konferanse (PTK 2017); 2017-03-06 - 2017-03-08. NTNU
Kaspar Vereide, Leif Lia, Wolfgang Richter, Ola Haugen Havrevoll, Tom Jakobsen
Upgrading of sand traps in existing hydropower plants, NTNU
Lia, L; Ravindra G; Hiller P, Sigtryggsdottir F.G.
Overtopping erosion of rockfill dams-Research in Norway. EDF
Sigtryggsdottir, F.G & Snæbjörnsson, J.Th.
Geohazard monitoring for reservoir and dam safety and sustainability. 19th ICSMGE
Sundt-Hansen, L.E., Hedger, R.D., Ugedal, O., Diserud, O.H., Finstad, A.G., Sauterleute, J.F., Tøfte, L., Alfredsen, K. & Forseth, T
Modelling climate change effects on Atlantic salmon: Implications for mitigation in regulated rivers. Science of the Total Environment. 631-632, 1005-1017
Sigtryggsdottir, F.G & Snæbjörnsson, J.Th.
Systematic methodology for planning and evaluation of a multi-source geohazard monitoring system. Application of a reusable template. ICESD
Tor Haakon Bakken, Ånund Killingtveit, Knut Alfredsen
The Water Footprint of Hydropower Production. State of the Art and Methodological Challenges. Global Challenges, DOI: 10.1002/gch2.201600018
Valavi, Mostafa; Nysveen, Arne
Variable-Speed Operation of Hydropower Plants: Past, Present, and Future. ICEM, Lausanne, Sveits
Valavi, Mostafa; Pascal, Jules; Nysveen, Arne
Analysis of Radial Magnetic Forces in Hydrogenerators with Fractional-Slot Windings. ICEM, Lausanne, Sveits
Tidsskriftspublikasjoner 2016
Tidsskriftspublikasjoner 2016
Konferansepapirer 2016
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy 2016 ;Volum 97. s. 881-891
NTNU
Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sadhana (Bangalore) 2016 ;Volum 41.(11) s. -
NTNU
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies 2016 ;Volum 9.(2) s. 1-24
NTNU
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review 2016 ;Volum 68:010802.(1) s. -
NTNU
Konferansepublikasjoner 2016
Konferansepublikasjoner 2016
Publikasjoner fra HydroCen forskere
Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad.
Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU
Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar.
Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU
Nylig publisert
Nylig publisert
Intelligent Data-driven Diagnosis of Incipient Inter-turn Short Circuit Fault in Field Winding of Salient Pole Synchronous Generators
Hossein Ehya; Tarjei Skreien; Arne Nysveen
This paper examines if machine learning (ML) and signal processing can be used for on-line condition monitoring to reveal inter-turn short circuit fault (ITSC) in the field winding of salient pole synchronous generators (SPSG). This was done by creating several ML classifiers to detect ITSC faults. A data set for ML was built using power spectral density of the air gap magnetic field extracted by fast Fourier transform (FFT), discrete wavelet transform energies, and time series feature extraction based on scalable hypothesis tests (TSFRESH) to extract features from measurements of SPSG operated under several different severities of ITSC fault. Using this data set, a wide range of classifiers were trained to detect the presence of ITSC faults. The classifiers evaluated were logistic regression, K-nearest neighbours, radial basis function support vector machine (SVM), linear SVM, XGBoost decision tree forest, multi-layer perceptron (MLP), and a stacking ensemble classifier including all of the aforementioned. The classifiers were optimised using hyper-parameter grid searches. In addition, some feature selection and reduction algorithms were assessed such as random forest feature selection, TSFRESH feature selection, and principal component analysis. This resulted in a classifier capable of detecting 84.5% of samples containing ITSC fault, with a 92.7% chance that fault detections are correct.
Featured publications
Einar Agnalt, Igor Iliev, Bjørn W. Solemslie, and Ole G. Dahlhaug, On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. This paper has just been published by the International Journal of Rotating Machinery.
In this paper we have experimentally verified the rotor stator interaction in a low specific speed Francis model turbine and a pump-turbine utilizing pressure sensors in the vaneless space and in the guide vane cascade. The main findings show that the pressure fluctuations in the guide vane cascade are mainly controlled by throttling for the low blade loading case and the rotating runner pressure for the higher blade loading case