Power Conditioning Unit for Direct-Drive Wave Energy Converter

Abstract

This study describes the power conversion and control solution used in the electrical power take-off of a linear direct drive permanent magnet generator for an offshore wave energy device. The proposed solution is assigned to collect the power extracted directly from the phase coils of the generator, which have a large internal inductance. The control circuit with a switched capacitor bank is proposed. The solution demonstrated by the analysis backed up by simulation and experimental results.