Deep-sea floating wind power generation and pumped storage combined device and working method

Abstract

The invention discloses a deep-sea floating combined device of wind power generation and pumped energy storage and a working method, wherein the device includes: a wind power generator tower, a pumped energy storage device and a buoyancy device, wherein the pumped energy storage device includes a wind power generator The buoyancy device is used to support the tower column of the wind power generator. The buoyancy device includes two vacuum steel tanks, and the two vacuum steel tanks are connected by a connecting bridge. When the power is low, use the electricity generated by the wind generator to drive the water pump and turbine to rotate in reverse, pump out the water in the vacuum steel tank for pumping and storing energy. , to drive the water pump turbine to generate electricity, so that the wind generator and the water pump turbine can simultaneously supply power to the grid. The device can adjust its own power supply to the grid at different time periods, thereby improving the utilization efficiency of electric energy and improving the adaptability of offshore wind power generation to the grid.

Description

technical field [0001] The invention relates to the technical field of offshore wind power in far-reaching sea areas, in particular to a deep-sea floating combined device for wind power generation and pumped storage and a working method. Background technique [0002] With the continuous development of the manufacturing industry, my country's energy demand continues to increase, and fossil energy will eventually be exhausted, and people are exploring more and more renewable energy. Wind power is a kind of renewable energy with quite mature technology, which has been developed rapidly. Moreover, wind energy, as a clean energy source, has no pollution to the environment and is conducive to popularization. [0003] Compared with the land, the wind resources on the sea are more abundant. In recent years, more and more offshore wind farms have been built, but most of them are located in nearshore areas, which will affect the economic benefits of nearshore sea areas. For offshor...

AI Technical Summary

Problems solved by technology

[0005] The biggest challenge in building wind power at sea is how to fix the device. At present, the commonly used foundations include single pile, multi-pile, gravity type, suction type, and floating foundation. However, in offshore deep sea areas, the foundation cannot be fixed on the seabed. Only Suitable for floating foundations

[0006] Another problem facing offshore wind power generation is that, affected by the environment, wind speed, wind direction and other factors, the output power of power generation fluctuates, and the peak value and time interval of the output power vary randomly.

When connected to the grid, it may cause problems such as grid frequency deviation, voltage fluctuation, and flicker

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