Modelling a point absorbing wave energy converter by the equivalent electric circuit theory: A feasibility study

Modelling a point absorbing wave energy converter by the equivalent electric circuit theory : A feasibility study

Manuscript title: An equivalent circuit for hydrodynamic modelling in wave power systemCorrections in Journal of Applied Physics Vol 118, Issue 8, article number 189903. DOI: 10.1063/1.4935617
There is a need to have a reliable tool to quickly assess wave energy converters (WECs). This paper explores whether it is possible to apply the equivalent electric circuit theory as an evaluation tool for point absorbing WEC system modelling. The circuits were developed starting from the force analysis, in which the hydrodynamic, mechanical, and electrical parameters were expressed by electrical components. A methodology on how to determine the parameters for electrical components has been explained. It is found that by using a multimeter, forces in the connection line and the absorbed electric power can be simulated and read directly from the electric circuit model. Finally, the circuit model has been validated against the full scale offshore experiment. The results indicated that the captured power could be predicted rather accurately and the line force could be estimated accurately near the designed working condition of the WEC.

Svensson, OlleUppsala universitet,Elektricitetslära(Swepub:uu)olsve179 (författare)
Isberg, JanUppsala universitet,Elektricitetslära(Swepub:uu)jaisb133 (författare)
Leijon, MatsUppsala universitet,Elektricitetslära,Univ Southampton, Energy & Climate Change Div, Fac Engn & Environm, Southampton, Hants, England(Swepub:uu)malei676 (författare)
Uppsala universitetElektricitetslära (creator_code:org_t)

Av författaren/redakt...: Hai, Ling; Svensson, Olle; Isberg, Jan; Leijon, Mats

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