Coastal wave energy power generating system with parametric resonance

Abstract

The invention relates to a coastal wave energy power generating system with parametric resonance. The system comprises that: a wide and large water port is arranged underwater at the coast of the lowest water level; the water port is connected with the bottom part of a fairing which is provided with a water turbine rotor through an outer water channel; the upper part of the fairing is connected with the bottom part of a water tank of which the section is rectangular through an inner water channel; the upper part of the water tank is provided with a compression air chamber, and the compression air chamber and the section of the water tank are rectangular; an air valve is arranged between the compression air chamber and the water tank; the water tank is provided with a water level sensor internally; the water level sensor is electrically connected with an air valve controller; and the air valve controller is electrically connected with the air valve. According to the invention, the resonance amplitude of a parametric resonance system provided by the invention is doubled of that of the common resonance, and wave energy can be effectively collected; the design of the whole wave power generating device is easy to master, and is especially suitable for the natural energy such as waves of which the frequency and resonance amplitude change constantly; and under the condition that the outer excitation resonance amplitude increases by a large margin, the resonance amplitude of the water level for the water tank only increases with small amplitude, and the system has the capability of resisting the outer large waves.

Description

A Parametric Resonance Offshore Wave Power Generation System technical field The invention relates to a parametric resonance offshore wave energy power generation system, which is a new energy source, a method and a system for improving wave energy capture efficiency by means of parametric resonance, and a method and system for generating electricity by using waves. Background technique There are more than 1,500 various patents on wave energy conversion, and wave energy devices are ever-changing, but they usually have two parts, one is the collection system, which is used to capture wave energy, and the other is the conversion system, which converts the captured wave energy into a specific form mechanical or electrical energy. The common shortcoming of existing wave energy devices is that the efficiency of capturing waves is low. Although there are some wave energy devices with higher efficiency, they are all too complicated and easily damaged under the constant impact of ...

AI Technical Summary

Problems solved by technology

The common disadvantage of existing wave energy devices is that the efficiency of capturing waves is low. Although there are some wave energy devices with high efficiency, they are all too complicated and easily damaged under the constant impact of waves

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