Floating type wave energy convertor

Abstract

The invention relates to the technical field of offshore wave power generation, in particular to a floating type wave energy convertor. The floating type wave energy convertor comprises a buoyancy pontoon, a hydraulic cylinder, a flow calibration valve set, a high-pressure accumulator, a low-pressure accumulator, a hydraulic motor, an electric generator and a stabilization device, wherein a piston rod is arranged at one end of the hydraulic cylinder, and the extending end of the piston rod is fixedly connected with the buoyancy pontoon; an upper end port and a lower end port of the hydraulic cylinder are connected with the flow calibration valve set through pipelines; the high-pressure accumulator is connected with a hydraulic inlet of the hydraulic motor through a pipeline; the low-pressure accumulator is connected with a hydraulic outlet of the hydraulic motor through a pipeline; the hydraulic motor is connected with the electric generator through a shaft; and the stabilization device is fixedly connected with the bottom of the hydraulic cylinder. The stability of power output of the electric generator of the wave energy convertor can be improved, the energy conversion efficiency is improved, the change range of output voltage of the generator is narrowed, and design and development of a power convertor are facilitated.

Description

technical field [0001] The invention relates to a technology in the field of offshore wave power generation, in particular to a floating wave energy converter with a rectifying valve group and double accumulators. Background technique [0002] my country's energy consumption is huge, and 70% of the existing electric energy comes from coal-burning thermal power generation, and high-energy-consuming industries such as steel, cement, and chemical industry also consume a large amount of coal every year. Coal burning contributes about 61% to the seriously exceeded PM2.5 concentration in my country. In order to improve the living environment, people are increasingly turning their attention to the development and utilization of renewable energy. Among them, the development and utilization of wave energy will improve the pollution caused by combustion. The destruction of the environment caused by mineral energy can alleviate the crisis of the gradual depletion of mineral energy. Acc...

AI Technical Summary

Problems solved by technology

However, in this technology, the output power of the generator is unstable, and when the wave height is small to a certain extent, it will easily lead to insufficient power supply. At the same time, the output voltage range of the generator varies too much, which is not conducive to the design and development of power converters.

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