Oscillating water column wave energy power generation system with focusing structure at bottom

By installing an adjustable-angle energy-concentrating plate and adjustment mechanism at the bottom of the oscillating water column wave energy power generation device, the problem of low energy capture efficiency of traditional devices under varying sea conditions is solved, gas flow rate matching and equipment protection are achieved, and power generation efficiency and equipment safety are improved.

CN121066756BActive Publication Date: 2026-05-05DALIAN UNIV OF TECH
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Patent Information

Application Number
CN202511258435.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-05-05
Estimated Expiration
2045-09-04

AI Technical Summary

Technical Problem

Traditional oscillating water column wave power generation devices suffer from low energy capture efficiency due to their fixed installation height and uncontrollable bottom water intake under varying sea conditions. Furthermore, the gas flow rate converted in the gas chamber cannot match the optimal operating frequency of the turbine power generation system, and they are easily damaged in extreme weather conditions.

Method used

An oscillating water column wave energy generation system with a bottom-concentrating structure was designed. By setting an adjustable-angle concentrating plate and adjustment mechanism at the bottom of the air chamber, the gas flow rate in the air chamber is matched and protected. The system includes a transmission mechanism and a screw lift to adjust the height of the air chamber, and uses a radar altimeter and an infrared camera to monitor the sea conditions in real time.

Benefits of technology

It improves the energy conversion efficiency of wave power generation devices, protects turbine power generation systems from overload or surge, reduces the risk of equipment damage, and achieves efficient power generation and equipment protection under different sea conditions.

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Abstract

This invention relates to the field of marine new energy technology utilization, and discloses an oscillating water column wave energy generation system with a bottom-mounted energy-concentrating structure. The system includes a jacket, an air chamber, a turbine power generation system, a radar altimeter, an infrared camera, an airflow velocity sensor, and a control unit. It also includes a bottom energy-concentrating component installed at the lower end of the air chamber and equipped with a transmission mechanism. A horizontal bottom plate and two symmetrically arranged energy-concentrating plates reflect and guide seawater at the bottom of the air chamber, concentrating energy beyond the width of the air chamber. The transmission mechanism synchronously controls the opening and closing of the energy-concentrating plates, changing the amount of seawater entering the air chamber at the inlet. This wave energy generation system can adjust the oscillation intensity of the water column in the air chamber according to changes in sea waves, ensuring that the generated airflow velocity matches the optimal operating frequency of the turbine power generation system, guaranteeing the power generation efficiency of the device. It also protects the oscillating water column wave energy generation device from wave impacts.
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