Novel floating wind energy-wave energy combined electricity generation system

Abstract

The invention belongs to the technical field of seaborne renewable energy utilization, and discloses a novel floating wind energy-wave energy combined electricity generation system. The system is based on a semi-submersible-oscillating water column wave energy integrated electricity generation platform without supporting stand columns, and comprises a seaborne wind electricity device and an oscillating water column wave energy electricity generation device. By means of the wave energy electricity generation device, vertical reciprocating motion of a water column is converted into reciprocating motion of a gas, and then electricity generation of wave energy is completed through an air turbine generator. According to the system, a bottom floating box and anchor chains of the semi-submersible platform are fully utilized; as the wave energy electricity generation device vertically moves with waves, the electricity generation efficiency is reduced, and the floating box can slow down vertical vibration; the anchor chains can further prevent the wave energy electricity generation device from vertically moving. According to the system, the structure of the supporting stand columns is not used, the construction process is simplified, and the problem of structural fatigue produced by the supporting stand columns is avoided. Compared with a traditional three-stand column semi-submersible blower, the waterplane area of the system is increased, thus steady moment of inertia is large, and the whole stability of a floating basis is improved.

Description

technical field [0001] The invention belongs to the technical field of marine renewable energy utilization, and relates to a novel floating wind energy-wave energy integrated power generation system, an integrated power generation system based on a semi-submerged floating platform that combines wind energy and an oscillating water column type wave energy device. Background technique [0002] Wind power is currently the most promising renewable energy source for large-scale development. Offshore wind power has become a new direction of international wind power development and has attracted the attention of all countries. As the proportion of offshore wind energy in the overall energy structure increases year by year, the development of floating wind turbine foundations suitable for deep water is also receiving more and more attention. However, the wave energy power generation device has low energy conversion efficiency and high unit power generation cost, which limits its co...

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Problems solved by technology

However, the wave energy generation device has low energy conversion efficiency and high unit power generation cost, which limits its commercialization to a certain extent.

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