Desert electric power supply system

Abstract

A desert electric power supply system disclosed in the invention comprises a vertical shaft windmill, an air compressor, an energy storage air cylinder, a heat collection air cylinder, a solar heat collector assembly, a pneumatic device, a generator set and an energy storage device. The air compressor, the energy storage air cylinder, the heat collection air cylinder and the solar heat collector assembly are sequentially communicated through pipelines; the heat collection air cylinder is also communicated with the pneumatic device through a pipeline; the pneumatic device is in transmission connection with the generator set; and the energy storage device is electrically connected with the generator set. Wind energy is converted into mechanical energy through the vertical shaft windmill, the mechanical energy enables the air compressor to work, external air is compressed to the energy storage air cylinder and the heat collection air cylinder, the solar heat collector assembly heats the compressed air, the air is heated and expanded, and solar heat energy is converted into gas internal energy; and finally, gas internal energy is converted into mechanical energy through the pneumatic device so as to drive the engine to generate electricity, and compared with pure wind power generation, the power generation process is more stable.

Description

technical field [0001] The present invention relates to the technical field of power systems, and more specifically relates to a desert power supply system. Background technique [0002] It is inevitable to use electricity in the process of desert governance and transformation. At present, pure wind power or photovoltaic power generation is generally used, which cannot make full use of wind and solar energy in the desert. Since the size and direction of the natural wind speed change randomly, wind power generation is unstable. At the same time, when the wind power generation capacity integrated into the grid reaches a certain level, the voltage will be unstable, especially when the grid has a short-term fault. Sudden drop, wind turbines cannot deliver energy to the grid, and eventually cut out of the grid due to protection actions, and sudden cut-out of wind turbines will lead to grid instability. The cost of photovoltaic power generation is high, and the photoelectric conv...

AI Technical Summary

Problems solved by technology

[0002] It is inevitable to use electricity in the process of desert governance and transformation. At present, pure wind power or photovoltaic power generation is generally used, which cannot make full use of wind and solar energy in the desert.

Since the size and direction of the natural wind speed change randomly, wind power generation is unstable. At the same time, when the wind power generation capacity integrated into the grid reaches a certain level, the voltage will be unstable, especially when the grid has a short-term fault. Sudden drop, wind turbines cannot deliver energy to the grid, and eventually cut out of the grid due to protection actions, and sudden cut-off of wind turbines will lead to grid instability

The cost of photovoltaic power generation is high, and the photoelectric conversion rate is very low, so it is not easy to popularize

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