Circuit Modeling and Reactive Control Analysis of a Mechanical Motion Rectifier-Based Wave Energy Converter

EUGENIO MARTIN GELOS; JUDEWICZ, MARCOS GABRIEL; DANIEL OSCAR CARRICA; MARCOS ALAN FUNES

Oberá

Congreso; XX REUNIÓN DE TRABAJO EN PROCESAMIENTO DE LA INFORMACIÓN Y CONTROL (RPIC2023); 2023

Facultad de Ingeniería - Universidad Nacional de Misiones

In this work, a new electrical circuit analogy is introduced for a mechanical motion rectifier (MMR)-based wave energy converter (WEC). The equivalent circuit is subdivided into three main parts: the fluid-structure interaction, the MMR, and the controlled load. The derived circuit is used to implementthe well-known reactive control strategy under regular waves excitation. The performance of the MMR-based WEC is compared to that of a non-MMR device. The analysis of the results shows how the nonlinearities introduced by the MMR affect the implementation of the reactive control. Finally, a time-domain nonlinear optimization of the controlled load is conducted for the MMR-based WEC for the most common ocean wave frequencies.