Seawater desalination system using wind generation and reverse osmosis

Abstract

The invention discloses a seawater desalination system using wind generation and reverse osmosis. The system comprises a wind generating set, a wind power seawater desalination driver and a reverse osmosis seawater desalination device comprising a first motor driven raw water pump and a second motor driven booster pump. The wind power seawater desalination driver comprises a rectifying filtering module for converting AC into DC, a resistor braking module for controlling the rotation speed of the wind generating set and the DC voltage of the rectifying filtering module, a first frequency converter connected with the first motor of the raw water pump, a second frequency converter connected with the second motor of the booster pump and a main control module. A main control unit is set to control the output frequency of the frequency converter so that the wind generating set runs at the maximum output power. If the wind power does not meet the power need of the system, the mains supply ordiesel power supplements the power supply; and otherwise, the wind power is consumed at first. By controlling the resistor braking module, the DC electric energy can be changed so as to limit the rotation speed of the wind generating set and the DC voltage of the rectifying filtering module and realize high efficiency and adaptability of the system without requiring a storage battery, thus savingcost.

Description

Technical field [0001] The present invention relates to wind power generation and seawater desalination processing technology, in particular to a system that uses wind power generation and reverse osmosis technology to realize seawater desalination. Background technique [0002] Fresh water is one of the basic materials for the survival and development of human society, and it is the source of all life. Many remote areas and islands are naturally scarce of fresh water resources, and they can only use brackish water or seawater through desalination to obtain fresh water. [0003] Most mature desalination technologies rely on electric power. Remote areas or islands cannot be introduced into public power grids or the cost of introducing power grids is too high, and the use of diesel power generation is not only costly, but oil transportation is also very difficult, maintenance workload is large, reliability is poor, and it is not friendly to the environment. Therefore, wind power ha...

AI Technical Summary

Problems solved by technology

Remote areas or islands cannot introduce public power grids or the cost of introducing power grids is too high, and diesel power generation is not only expensive, but also very difficult to transport oil, heavy maintenance workload, poor reliability, and unfriendly to the environment

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