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Analysis of the influence of different topologies on a TLSRG generation performance for WEC

Mendes, R. ; Calado, M.R.A. ; Mariano, S.J.P.S.

Engineering Letters Vol. 22, Nº 4, pp. 202 - 208, December, 2014.

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Abstract
In this work, 4 structural configurations are proposed, and analysed, to be used as a tubular linear switched reluctance generators with tubular topology (TLSRG). For the 4 models under assessment, inductance change with the mover part position is assessed to quantify the machine capabilities as generator for an wave energy converter (WEC), namely a point absorber device. This evaluation is supported by a 2D FEM analysis based software through which are determined the inductance values at different alignment conditions as well as the magnetic flux densities for the referred alignment conditions. An analytic design procedure is presented for one structural model and the same procedure is used to size the generator for given nominal power and based velocity, derived from an ocean wave energy assessment based on meteorological data.