Multi-energy synergistic power generation and water energy storage and sea water desalination system based on user requirement control

Abstract

The invention discloses a multi-energy synergistic power generation and water energy storage and sea water desalination system based on user requirement control. The system is mainly composed of a distributed user system, a multi-energy power generation system, a water lifting and energy storage system, a sea water desalination system, a load predicting center and a control dispatching center. The load predicting center is used for predicting loads of distributed users according to a related prediction algorithm and meteorological data, and the control dispatching center is used for controlling the multi-energy power generation system, the water lifting and energy storage system and the sea water desalination system according to load requirements of a user side monitoring system and predicted loads of the load predicting center and making the optimal operation strategy according to information of all the systems. The multi-energy system is optimized and dispatched in real time through the control dispatching center, power generation loads and sea water desalination quantity are large, the requirement for power and water utilization of the user side can be met, self-sufficiency and stable supply of power and water for the distributed users can be achieved, energy conservation and emission reduction are achieved, and the system provides an important technical means of developing distributed power supply for users on islands and remote mountain areas in China.

Description

technical field [0001] The invention relates to the field of distributed utilization of renewable energy, in particular to a multi-energy collaborative power generation, water energy storage and seawater desalination system controlled based on user demand. Background technique [0002] As a large oceanic country, our country has an ocean area of ​​about 3 million square kilometers and numerous islands. However, there are still nearly one million households living in coastal and island areas that lack or lack electricity. Since most islands and their surroundings are rich in renewable energy, such as wind energy, solar energy, wave energy, tidal energy, etc., building an efficient and clean island energy system can not only solve the island’s shortage of fossil fuels and transportation difficulties, but also contribute to the protection of the marine environment, Promoting energy saving and emission reduction is also of great significance. [0003] At the end of 2009, my cou...

AI Technical Summary

Problems solved by technology

However, due to its unstable characteristics, it is currently difficult to achieve large-scale grid connection. Even if it can be achieved, the construction of a municipal supporting power grid will cost a lot of money, which is not worth the candle for small islands, and from distributed small off-grid systems. Look, there is also a problem of inconsistency in matching with the user end, and an energy storage system needs to be added

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