Design of the LCL+trap filter for the two-level VSC installed in a large-scale wave power plant
Location: Denver, CO
Publication date: 2013-09-15
Published in: IEEE Energy Conversion Congress and Exposition 2013, Denver (USA) - ECCE 2013
ref. DOI: 10.1109/ECCE.2013.6646771

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Cantarellas, A.M., Remón, D.



This paper presents a methodology for designing the link passive filter of the power converters installed in a multi-megawatt wave power plant. Such filter is based on the superposition of both LCL and trap filter configurations with the purpose of achieving enhanced grid interaction of a two-level voltage source converter. The LCL+Trap filter design is highly dependent on the electrical network characteristics; hence the distribution system of the plant is introduced in the paper to take into account its effects on the tuning parameters. The proposed LCL+trap filter topology arises as a successful alternative solution for the conventional LCL filter topology, thanks to its improved filtering capability while ensuring a reduced filter size. The validation of the proposed filter performance is evaluated in simulation by performing a comparative analysis between the LCL+trap and the LCL filters when operate in a wave farm application.


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