Floating type wind energy and wave energy combined power generation device and control method thereof

Abstract

The invention discloses a floating type wind energy and wave energy combined power generation device and a control method thereof, and belongs to the technical field of marine renewable energy utilization. The floating type wind energy and wave energy combined power generation device comprises a wind energy power generation module, a wave energy power generation module and a floating platform. Thewave energy power generation module is installed on the outer side of the floating platform through a plurality of hinge structures. A buoy of the wave energy power generation module drives a hydraulic cylinder to reciprocate and a hydraulic system to operate through a connecting arm under the action of waves, thereby driving a hydraulic motor and a hydraulic power generator to generate power. The control method of the hydraulic system includes the steps of detecting the motions of the platform in real time, and adjusting the flow of the hydraulic system through an adjustable throttle valve,thereby controlling the damping of the reciprocating motions of the hydraulic cylinder and effectively reducing the motion responses of a combined power generation platform. The floating type wind energy and wave energy combined power generation device can be completed on a same supporting structure, reduces the power generation cost and is a reliable marine renewable energy power generation platform. The control method of the hydraulic system is beneficial for improving the motion stability of the system.

Description

technical field [0001] The invention relates to the technical field of marine renewable energy utilization, in particular to a floating wind energy-wave energy combined power generation device and a control method thereof. Background technique [0002] Wind power is currently the most promising renewable energy source for large-scale industrialization. Offshore wind power has become a new direction for international wind power development and has attracted the attention of all countries. With the gradual saturation of onshore wind power utilization, the proportion of offshore wind power in the entire energy structure is increasing year by year. The development of offshore wind energy is of great significance to my country's energy structure adjustment and sustainable development. [0003] Compared with land, there are more abundant and stable wind energy resources at sea, especially in deep sea areas, so floating wind turbine technology suitable for deep water environments h...

AI Technical Summary

Problems solved by technology

For example, the Chinese patent document with publication number CN109026542A discloses a floating wind energy-wave energy combined power generation system. The combined power generation system combines wind energy and wave energy devices on the basis of a semi-submersible floating platform to realize offshore renewable energy. However, its wave energy device uses an air turbine to generate power, and its power generation efficiency is not high. Since it costs a lot of money to install such a device on the sea, it cannot achieve high power generation efficiency, and it is easy to cause waste of resources.

Images