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Related Experiment Video

Updated: Jul 3, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

Implementation and optimization of hydraulic wave energy generation system.

Zhigang Liu¹, Shi Liu¹, Wen Chen¹

¹China Southern Power Grid Technology Co., Ltd., Guangzhou, Guangdong, China.

|February 15, 2024

Summary

Researchers developed a novel hydraulic system for continuous wave energy generation. This system utilizes energy storage and optimized power operation to overcome power interruptions caused by unfavorable wave conditions.

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Area of Science:

Marine renewable energy
Ocean engineering
Sustainable energy technologies

Background:

Wave energy is a significant, inexhaustible marine energy source attracting research interest.
Existing wave energy systems face challenges with continuous power generation during unfavorable wave conditions.

Purpose of the Study:

To develop and investigate a real wave energy generation system with enhanced reliability.
To address prolonged power interruptions in wave energy systems.

Main Methods:

Constructed a wave energy generation system including wave simulation and hydraulic energy storage.
Developed mathematical models for wave input (JONSWAP spectrum) and the Power Take Off (PTO) system (hydraulic cylinders, energy storage, motors), considering fluid dynamics and leakage.
Proposed a system structure with energy storage and parallel generators, coupled with a power operation optimization scheme.

Main Results:

Mathematical models were established to analyze wave energy generation characteristics.
The proposed system structure and optimization scheme effectively utilize wave energy.
Continuous power supply was achieved in the hydraulic wave energy generation system.

Conclusions:

The developed hydraulic wave energy generation system with energy storage and optimized power operation successfully ensures an uninterrupted power supply.
This approach enhances the efficiency and reliability of wave energy conversion systems.