Operation optimization method and device for multi-energy system based on hydrogen energy and energy storage equipment

Abstract

The invention discloses an operation optimization method and device for a multi-energy system based on hydrogen energy and energy storage equipment. The system is composed of a fuel cell, an electrolytic cell, an absorption refrigerator, a waste heat recovery device, a photovoltaic power generation system, a solar water heater, a wind generating set, a hydrogen storage tank, a compressor, a hot water tank and a cold water tank. According to the operation optimization method, a scene tree method is adopted to solve the randomness problem; and according to predicted values and deviations of windpower, solar radiation intensity, power demand, cold demand and heat demand, expected scenes of wind power generation, photovoltaic power generation, solar heat production and user electricity cold and heat demand are established, and mixed integer linear optimization is performed on the system by taking the minimum average operation cost under all scenes as a target so as to research the operation strategy of the system. In the optimization problem, the operation strategies of the fuel cell and the absorption refrigerator in all situations are kept the same, and the operation strategies of the electrolytic cell, the hydrogen storage tank, the hot water tank and the cold water tank in different situations are variable, so that the purpose of absorbing renewable energy sources is achieved.

Description

technical field [0001] The invention belongs to the technical field of multi-energy systems, and in particular relates to an operation optimization method and device for a multi-energy system based on hydrogen energy and energy storage equipment. Background technique [0002] Every milestone development of energy utilization in human history will open a new era. From firewood to coal to oil, human civilization has also advanced rapidly, and at the same time, it is increasingly inseparable from energy. At present, petrochemical energy sources such as coal and oil are facing depletion, and the environmental problems brought about by carbon emissions and global warming are constantly engulfing the living environment of human beings, and human civilization will face a major turning point. Efficiency, cleanliness, and sustainability are the key elements in the choice of future energy sources, among which efficiency is a necessary condition. Efficiency means high energy density....

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Problems solved by technology

[0006] At present, the use of renewable energy, such as solar energy and wind energy, has become increasingly common, but in the use of renewable energy, due to the uncertainty of weather conditions and user demand, "abandoning wind" and "abandoning light" The phenomenon is very serious

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