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Study of a Wave Energy Converter Connected to a Nonlinear Load

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7 Author(s)
Bostrom, C. ; Dept. of Eng. Sci., Uppsala Univ., Uppsala ; Waters, R. ; Lejerskog, E. ; Svensson, O.
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This paper presents experimental results from a wave energy converter (WEC) that is based on a linear generator connected to a rectifier and filter components. The converter-filter system is installed onshore, while the linear wave generator operates offshore a few kilometers from the Swedish west coast. The power from the generator has been rectified with a diode bridge and then filtered using a capacitive filter. Performance of the whole conversion system was studied using resistive loads connected across the filter. The aim was to investigate the operational characteristics of the generator while supplying a nonlinear load. By changing the value of the resistive component of the load, the speed of the translator can be changed and so also the damping of the generator. The power absorbed by the generator was studied at different sea states as well. The observations presented in this paper could be beneficial for the design of efficient wave energy conversion systems.

Published in:

Oceanic Engineering, IEEE Journal of  (Volume:34 ,  Issue: 2 )