dc.contributor.author | Stavnesli, Jørgen Hagset | |
dc.contributor.author | Nøland, Jonas Kristiansen | |
dc.date.accessioned | 2023-01-09T07:34:40Z | |
dc.date.available | 2023-01-09T07:34:40Z | |
dc.date.created | 2022-08-05T01:44:38Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | IEEE Open Access Journal of Power and Energy. 2022, . | en_US |
dc.identifier.issn | 2687-7910 | |
dc.identifier.uri | https://hdl.handle.net/11250/3041730 | |
dc.description.abstract | Pumped-storage hydropower is seen as a promising solution for efficient, large-scale energy storage. One competitive technical solution is the variable-speed hydropower plant (VSHP) configured with a converter-fed synchronous machine (CFSM). These machines are operated with one extra degree of freedom that is not usually optimized, where the CFSM’s rotor-side DC excitation interacts with the stator-side AC excitation. Depending on machine loading, the CFSM will be utilized in conditions far from its original design. In order to deal with this issue, this paper presents a stator flux control (SFC) method for regulating VSHPs in a more efficient way by adjusting the field current to prevent the machine from operating with over-magnetization independent of loading condition, as well as better utilizing the stator-fed converter current. Also, the CFSM reduces its rotor current losses and extra stator losses from saturated iron. The derived first-principle analytical equations for the proposed SFC have been validated and analyzed in the Matlab/Simulink environment for a large 45MVA, 375 rpm CFSM, with the measured saturation curve as input. Finally, dynamic transitions between different levels of pumping power reveal the SFC’s ability to help to maintain a unity stator flux in the machine, enabling optimal operation independent of loading level. | en_US |
dc.description.abstract | Stator Flux-Regulatory Excitation Control in Converter-Fed Synchronous Machines for Pumped-Storage Variable-Speed Hydropower | en_US |
dc.language.iso | eng | en_US |
dc.publisher | IEEE | en_US |
dc.relation.uri | https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9849122 | |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Stator Flux-Regulatory Excitation Control in Converter-Fed Synchronous Machines for Pumped-Storage Variable-Speed Hydropower | en_US |
dc.title.alternative | Stator Flux-Regulatory Excitation Control in Converter-Fed Synchronous Machines for Pumped-Storage Variable-Speed Hydropower | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 10 | en_US |
dc.source.journal | IEEE Open Access Journal of Power and Energy | en_US |
dc.identifier.doi | 10.1109/OAJPE.2022.3196242 | |
dc.identifier.cristin | 2041312 | |
dc.relation.project | Norges forskningsråd: 326673 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |