Matches in SemOpenAlex for { <https://semopenalex.org/work/W2326885463> ?p ?o ?g. }
Showing items 1 to 56 of
56
with 100 items per page.
- W2326885463 endingPage "032056" @default.
- W2326885463 startingPage "032056" @default.
- W2326885463 abstract "The frequency of the Nordic power grid has become more volatile during recent years. This gives rise to two effects in synchronous machines. Firstly, as grid frequency changes the rotational speed of synchronous machines must change likewise. Secondly, the Nordic grid uses speed droop operation extensively as the primary governing; hence the power produced is a function of the grid frequency. These two coupled effects will lead to the runner and axle on synchronous machines having to cope with a varying level of torque. Even if the unit is supposedly operating at steady state via a fixed set point for the production, the influence of the varying grid frequency is that the torque in not steady at all. Recent years' new high head Francis runners in Norway have shown a tendency towards experiencing fatigue to a greater extent than what seem to be the case for new runners decades ago. Leading to this paper, measurements have been made of the rotational speed; generator power; main servo motor position and grid frequency at a Francis turbine unit. Based on these measurements simulations that include the hydraulic domain have then been performed. From these simulation results a property is constructed which is intended as a qualitative measure of the material stresses induced in the rotating masses of the unit, and is representative of the dynamical loads on the material of the rotating masses. The work is a part of a longer term goal, namely identifying the stress oscillations in a Francis turbine runner operating at speed of rotation oscillating because of grid frequency variations." @default.
- W2326885463 created "2016-06-24" @default.
- W2326885463 creator A5055495670 @default.
- W2326885463 creator A5078613083 @default.
- W2326885463 date "2014-03-01" @default.
- W2326885463 modified "2023-10-10" @default.
- W2326885463 title "Dynamic load on a Francis turbine runner from simulations based on measurements" @default.
- W2326885463 cites W2101288962 @default.
- W2326885463 doi "https://doi.org/10.1088/1755-1315/22/3/032056" @default.
- W2326885463 hasPublicationYear "2014" @default.
- W2326885463 type Work @default.
- W2326885463 sameAs 2326885463 @default.
- W2326885463 citedByCount "13" @default.
- W2326885463 countsByYear W23268854632015 @default.
- W2326885463 countsByYear W23268854632016 @default.
- W2326885463 countsByYear W23268854632017 @default.
- W2326885463 countsByYear W23268854632018 @default.
- W2326885463 countsByYear W23268854632019 @default.
- W2326885463 countsByYear W23268854632023 @default.
- W2326885463 crossrefType "journal-article" @default.
- W2326885463 hasAuthorship W2326885463A5055495670 @default.
- W2326885463 hasAuthorship W2326885463A5078613083 @default.
- W2326885463 hasBestOaLocation W23268854631 @default.
- W2326885463 hasConcept C127413603 @default.
- W2326885463 hasConcept C146978453 @default.
- W2326885463 hasConcept C199104240 @default.
- W2326885463 hasConcept C2778449969 @default.
- W2326885463 hasConcept C2778705046 @default.
- W2326885463 hasConcept C41008148 @default.
- W2326885463 hasConceptScore W2326885463C127413603 @default.
- W2326885463 hasConceptScore W2326885463C146978453 @default.
- W2326885463 hasConceptScore W2326885463C199104240 @default.
- W2326885463 hasConceptScore W2326885463C2778449969 @default.
- W2326885463 hasConceptScore W2326885463C2778705046 @default.
- W2326885463 hasConceptScore W2326885463C41008148 @default.
- W2326885463 hasIssue "3" @default.
- W2326885463 hasLocation W23268854631 @default.
- W2326885463 hasOpenAccess W2326885463 @default.
- W2326885463 hasPrimaryLocation W23268854631 @default.
- W2326885463 hasRelatedWork W1985731131 @default.
- W2326885463 hasRelatedWork W2249477408 @default.
- W2326885463 hasRelatedWork W2368868960 @default.
- W2326885463 hasRelatedWork W2886159653 @default.
- W2326885463 hasRelatedWork W2910487517 @default.
- W2326885463 hasRelatedWork W2910614399 @default.
- W2326885463 hasRelatedWork W333723563 @default.
- W2326885463 hasRelatedWork W4306175575 @default.
- W2326885463 hasRelatedWork W4327694478 @default.
- W2326885463 hasRelatedWork W7757227 @default.
- W2326885463 hasVolume "22" @default.
- W2326885463 isParatext "false" @default.
- W2326885463 isRetracted "false" @default.
- W2326885463 magId "2326885463" @default.
- W2326885463 workType "article" @default.