Wind-driven energy-storage power generating device

Abstract

The invention belongs to the technical field of wind energy utilization and particularly relates to a wind-driven energy-storage power generating device. Compressed air generated by more than one wind compressor is fed into a waste mine or a cave, of which the inner wall is subjected to sealing processing, through a pipeline to be stored; and the compressed air stored in the waste mine or the cave supplies an air source for one or the combination of the following pneumatic equipment through a pipeline: 1, a turbine generator and 2, a ventilation pipeline. The wind-driven energy-storage power generating device has the beneficial effects that a great amount of compressed air which is produced by the wind compressor at any time can be stored in the waste mine or the cave and then is converted into electric energy or is used for directly doing work, thus, the problems of difficulty in high-voltage line transmission in mountain areas or oceanic islands and flats rich in wind resources and low power generating efficiency and low utilization rate of the traditional wind-driven power generator are completely solved; and the wind-driven energy-storage power generating device is suitable for sufficient utilization of wind energy in the mountain areas or the oceanic islands and the flats with waste mines or the caves.

Description

Technical field [0001] The invention belongs to the technical field of wind energy utilization, and particularly refers to a wind energy storage power generation device. Background technique [0002] For many centuries, wind turbines, like hydraulic machinery, have been used as power sources to replace human and animal power, and have played an important role in the development of productivity. The wide application of electromechanical power in modern times and the discovery of oil fields in the Middle East in the 1950s slowed down the development of wind turbines. In the early 1970s, due to the "oil crisis", there was a problem of energy shortage. People realized the instability and limitation of conventional fossil energy supply, so the search for clean renewable energy became an important issue in the modern world. As a renewable and pollution-free natural energy source, wind energy has attracted people's attention again. In 2007, the cumulative installed capacity of global ...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of wind power generators are: first, the site selection has high requirements on the natural environment (wind speed), and the wind measurement stage will last for more than one year. In contrast, the power generated per unit of land area is quite different. Areas with strong winds are usually sparsely populated, far away from the power load center, and have higher requirements for power grid transmission; second, the generated power is unstable (depending on uncontrollable wind speed ), the number of utilization hours is low, usually about 2000 hours / year, and it is generally believed that the proportion of wind power generation in the total power grid is not higher than 10-12%, and some people say it is 20%, otherwise it will affect the stability of the grid; the third is one-time The investment is larger than thermal power, and the on-grid electricity price is higher than thermal power or hydropower

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