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October 22, 2025Open Access

Design and Development of an Efficiently Harvesting Buoy-Type Wave Energy Converter

Key Points

The prototype wave energy harvester achieved a peak power output of 3.6 W, demonstrating efficient energy conversion from ocean waves.
Electrical power generated peaked at 6.7 V with an average output of 8.5 mW, indicating promising efficiency in energy harvesting.
MATLAB-2023 simulations and experimental data assessed the device’s performance across various wave heights and frequencies.
The study also examines how adding more buoys could further enhance the wave energy converter's electrical output.

Abstract

This paper presents an innovative approach to efficiently harvesting energy from ocean waves through a buoy-type Wave Energy Converter (WEC). The proposed methodology integrates a buoy, a Mechanical Motion Rectifier (MMR), a Motion Rectifier (MR), an Energy Storage Element (ESE), and an electric generator. A MATLAB-2023 model has been employed to assess the electrical power generated under varying wave heights and frequencies. Experimental data and numerical simulations reveal that the prototype Wave Energy Harvester (WEH) achieved a peak voltage of 6.7 V, peak power of 3.6 W, and an average power output of 8.5 mW, with an overall efficiency of 47.2% for the device’s actual size. Additionally, a theoretical analysis has been conducted to investigate the impact of incorporating additional buoys on the electrical power output.

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