Wind power isolated grid sea water desalination system

Abstract

The invention provides a wind power isolated grid sea water desalination system and belongs to the fields of wind power generation and sea water desalination treatment. The system includes: a micro-grid sub-system with wind power generation as main power supply; a sea water desalination sub-system being connected to the micro-grid sub-system and performing desalination to sea water by means of electric energy generated from a wind driven generator, wherein the sea water desalination sub-system comprises at least one reverse osmosis device and at least one electro-osmosis device; and a control sub-system detecting the quality of water generated from the reverse osmosis device. According to a design method of the wind power isolated grid sea water desalination system, the power supply and the load are arranged in a classified manner so that the system can effectively adapt with fluctuation and intermittence of the wind power supply, can achieve large-range continuous variable-load fined operation, can maximumly utilize wind power, can reduce start-and-stop times of the reverse osmosis device and is prolonged in the service life.

Description

technical field [0001] The invention relates to the fields of wind power generation and seawater desalination treatment, in particular to a wind power isolated grid seawater desalination system. Background technique [0002] Fresh water is one of the basic materials for the survival and development of human society and the source of all life. Many remote areas and islands are naturally short of fresh water resources, and can only use brackish water or desalinated sea water to obtain fresh water. [0003] Most mature desalination technologies rely on electrical energy to drive. Remote areas or islands cannot introduce public power grids or the cost of introducing public power grids is too high. The use of diesel power generation is not only costly, but also very difficult to transport oil, heavy maintenance workload, poor reliability, and not friendly to the environment. Therefore, wind power generation has become one of the important ways to replace conventional energy ge...

AI Technical Summary

Problems solved by technology

On the one hand, the power demand of the seawater desalination system is discontinuous, and it also relies heavily on the coordinated control of the energy storage link on the power supply side to maintain the balance between power generation and power consumption of the system in real time; The unqualified water produced in the water wastes electric energy and affects the life of the equipment

At the same time, due to the limitation of the minimum flow rate of the membrane module's own process characteristics, the ability of the system to operate with variable loads in a wide range is restricted.

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