FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W147613276> ?p ?o ?g. }

• W147613276 abstract "Energy storage systems are used in various applications to compensate for a fluctuating power demand. For a jack-up drilling rig, energy storage can work as a buffer between load motors and diesel generators. During a tripping operation, which involves lifting and lowering of the drill string, the diesel generators limits how fast the motor loads can accelerate. The objective of the work presented in this thesis, was to build a model for simulations of DC grid with energy storage and use this model for a case study to answer how much an energy storage can speed up the operation, and which energy storage technology that is best suited for the purpose. The studied system was a DC grid for jack-up rigs supplied by diesel generators. Two energy storage technologies were considered; electrolytic capacitors and super-capacitors. The main basis of comparison between these technologies was power- and energy density. When performing a tripping operation, the load motors have a repeating and fluctuating power demand which changes throughout the operation depending on how heavy the load is. The energy storage will supply the increasing load power while the diesel generators accelerate. It was decided to investigate two scenarios which repeat throughout the tripping process; one for high load, and one for low load. Several simplifications were made when building a model in Simulink. The model consisted of one diesel generator model, several energy storage modules with DC-DC converters, and a load model. The loads were modelled as a current source which draws a given power based on the measured voltage. The diesel engine was modelled as a first order system, while the generator was modelled using a built in Simulink model. It was found that a two quadrant DC-DC converter was a suitable interface between the energy storage and DC bus. Two energy storage models were developed, one for supercapacitors and one for electrolytic capacitors. Four simulations were run to compare the two energy storage technologies and to investigate the two different load scenarios. The results indicated that an energy storage can reduce the time duration of a tripping operation with 11-16%. It was also found that the supercapacitors had the best power- and energy density for the studied load scenarios. Over all, the model worked properly and gave trustworthy results." @default.
• W147613276 created "2016-06-24" @default.
• W147613276 creator A5090186005 @default.
• W147613276 date "2014-01-01" @default.
• W147613276 modified "2023-09-24" @default.
• W147613276 title "DC Grid with Energy Storage for Jack-up rigs" @default.
• W147613276 cites W1976720562 @default.
• W147613276 cites W1981610319 @default.
• W147613276 cites W2062532416 @default.
• W147613276 cites W2092481569 @default.
• W147613276 cites W2165542309 @default.
• W147613276 cites W561864213 @default.
• W147613276 cites W611224513 @default.
• W147613276 hasPublicationYear "2014" @default.
• W147613276 type Work @default.
• W147613276 sameAs 147613276 @default.
• W147613276 citedByCount "0" @default.
• W147613276 crossrefType "dissertation" @default.
• W147613276 hasAuthorship W147613276A5090186005 @default.
• W147613276 hasConcept C119599485 @default.
• W147613276 hasConcept C121332964 @default.
• W147613276 hasConcept C127413603 @default.
• W147613276 hasConcept C138171918 @default.
• W147613276 hasConcept C163258240 @default.
• W147613276 hasConcept C171146098 @default.
• W147613276 hasConcept C183739832 @default.
• W147613276 hasConcept C188573790 @default.
• W147613276 hasConcept C2776301318 @default.
• W147613276 hasConcept C2779733308 @default.
• W147613276 hasConcept C544738498 @default.
• W147613276 hasConcept C61352017 @default.
• W147613276 hasConcept C62520636 @default.
• W147613276 hasConcept C73916439 @default.
• W147613276 hasConceptScore W147613276C119599485 @default.
• W147613276 hasConceptScore W147613276C121332964 @default.
• W147613276 hasConceptScore W147613276C127413603 @default.
• W147613276 hasConceptScore W147613276C138171918 @default.
• W147613276 hasConceptScore W147613276C163258240 @default.
• W147613276 hasConceptScore W147613276C171146098 @default.
• W147613276 hasConceptScore W147613276C183739832 @default.
• W147613276 hasConceptScore W147613276C188573790 @default.
• W147613276 hasConceptScore W147613276C2776301318 @default.
• W147613276 hasConceptScore W147613276C2779733308 @default.
• W147613276 hasConceptScore W147613276C544738498 @default.
• W147613276 hasConceptScore W147613276C61352017 @default.
• W147613276 hasConceptScore W147613276C62520636 @default.
• W147613276 hasConceptScore W147613276C73916439 @default.
• W147613276 hasLocation W1476132761 @default.
• W147613276 hasOpenAccess W147613276 @default.
• W147613276 hasPrimaryLocation W1476132761 @default.
• W147613276 hasRelatedWork W176863370 @default.
• W147613276 hasRelatedWork W1987982388 @default.
• W147613276 hasRelatedWork W2017909497 @default.
• W147613276 hasRelatedWork W2066086033 @default.
• W147613276 hasRelatedWork W2083307556 @default.
• W147613276 hasRelatedWork W2115826867 @default.
• W147613276 hasRelatedWork W2144621771 @default.
• W147613276 hasRelatedWork W2159937574 @default.
• W147613276 hasRelatedWork W2277070620 @default.
• W147613276 hasRelatedWork W2341966985 @default.
• W147613276 hasRelatedWork W2545808889 @default.
• W147613276 hasRelatedWork W2808929546 @default.
• W147613276 hasRelatedWork W2884506863 @default.
• W147613276 hasRelatedWork W2887878802 @default.
• W147613276 hasRelatedWork W2903325553 @default.
• W147613276 hasRelatedWork W3003802065 @default.
• W147613276 hasRelatedWork W644489863 @default.
• W147613276 hasRelatedWork W2814250524 @default.
• W147613276 hasRelatedWork W3182035503 @default.
• W147613276 hasRelatedWork W3193671294 @default.
• W147613276 isParatext "false" @default.
• W147613276 isRetracted "false" @default.
• W147613276 magId "147613276" @default.
• W147613276 workType "dissertation" @default.