3 Years Experience with Energy Production on the Nissum Bredning Wave Dragon Prototype

Peter Frigaard, James Tedd, Jens Peter Kofoed, E. Friis-Madsen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Wave Dragon is a floating wave energy converter working by extracting energy principally by means of overtopping of waves into a reservoir. A 1:4.5 scale prototype has been sea tested for 20 months. This paper presents results from testing, experiences gained and developments made during this extended period. The prototype is highly instrumented. The overtopping characteristic and the power produced are presented here. This has enabled comparison between the prototype and earlier results from both laboratory model and computer simulation. This gives the optimal operating point and the expected power of the device. The project development team has gained much soft experience from working in the harsh offshore environment. In particular the effect of marine growth in the draft tubes of the turbines has been investigated. The control of the device has been a focus for development as is operates automatically for most of the time. This has led to improvements in the power take off, trim control and stability of the device.

Original languageEnglish
Title of host publicationProceedings of the Fourth CA-OE Workshop : Performance Monitoring of Ocean Energy Systems, Lisbon, 16-17 November, 2006
Number of pages7
PublisherCoordination Action on Ocean Energy (CA-OE) : Sixth Framework Programme
Publication date2006
Publication statusPublished - 2006
EventThe Fourth CA-OE Workshop : Performance Monitoring of Ocean Energy Systems - Lisbon, Portugal
Duration: 16 Nov 200617 Nov 2006

Conference

ConferenceThe Fourth CA-OE Workshop : Performance Monitoring of Ocean Energy Systems
CountryPortugal
CityLisbon
Period16/11/200617/11/2006

Bibliographical note

PDF for print: 7 pp.

Keywords

  • Wave Dragon
  • Wave Energy
  • Wave Energy Converters
  • Wave Power
  • Overtoppings
  • Productions
  • Prototypes
  • Denmark

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