Low-carbon economic dispatching method for electricity-gas-heat integrated energy system considering oxyfuel combustion technology

Abstract

The present invention proposes a low-carbon economic scheduling method for electricity-gas-thermal comprehensive energy system considering oxygen-enriched combustion technology, which is characterized in that it includes: time-shift characteristic analysis of electric energy in an oxygen-enriched combustion power plant, and construction of a net output power model of an oxygen-enriched combustion power plant , analysis of electrical carbon characteristics of oxy-fuel combustion power plants, construction of low-carbon economic dispatch model of electricity-gas-thermal integrated energy system, etc., by mining the operation mechanism of oxy-fuel combustion power plants, studying the time-shift characteristics of internal electric energy, and constructing a net output work model And analyze its electric carbon characteristics; secondly, considering the coordinating effect of the electric-gas-thermal integrated energy system on the oxy-fuel combustion power plant, set constraints based on its operating mechanism, and establish an objective function with the lowest operating cost, maintenance cost, and depreciation cost The low-carbon economic dispatch model of electricity-gas-heat integrated energy system. It has the advantages of being scientific and reasonable, strong applicability and good effect.

Description

technical field [0001] The invention relates to a low-carbon economic scheduling method for an electric-gas-thermal comprehensive energy system considering oxygen-enriched combustion technology. Background technique [0002] With the continuous development of the economy, fossil fuels are used in large quantities, and the resulting global warming problem is getting worse day by day. my country's power industry is a major energy consumer and has large carbon emissions. However, carbon emissions can be reduced through energy transformation. Building an integrated energy system is an important measure to achieve energy transformation. The integrated energy system is a kind of integrated energy such as electricity, gas, heat, etc., which is formed through the coordination and optimization of energy conversion facilities and storage facilities. The integrated system of production, supply and marketing can realize the efficient use of energy, and the integrated energy system is lo...

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Problems solved by technology

Carbon capture technology refers to the technology for low-carbon transformation of coal-fired power plants. It is mainly divided into pre-combustion capture, post-combustion capture, and oxygen-enriched combustion technologies. Among them, pre-combustion capture technology can only be applied to new power plants, while oxygen-enriched Combustion technology and post-combustion capture technology can carry out low-carbon transformation of traditional coal-fired power plants. The carbon capture technology used in literature [3-5] is post-combustion capture technology, which has high transformation investment costs and the highest level of carbon capture. lower defect

In recent years, the oxygen-enriched combustion technology in the carbon capture technology has improved the above problems, but there are few studies on the introduction of the oxygen-enriched combustion technology in the integrated energy system and the carbon trading mechanism.

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