Circuit Modelling and Reactive Control Analysis of a Mechanical Motion Rectifier based Wave Energy Converter

GELOS, E. M.; JUDEWICZ, M. G.; CARRICA, D. O.; FUNES, M. A.

Oberá, Misiones

Congreso; XX Reunión de Trabajo en Procesamiento de la Información y Control; 2023

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 implement the 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.