Low-carbon economic dispatching method for integrated energy system containing P2G and energy storage

Abstract

The invention discloses a low-carbon economic dispatching method for an integrated energy system containing P2G and energy storage, and the method comprises the steps: introducing a power-to-gas equipment operation mechanism and a carbon transaction mechanism into an integrated energy system model of a multi-energy coupling unit, so as to reduce the operation cost of the integrated energy system. The method comprises the following steps: firstly, comprehensively considering the characteristics of each unit in an integrated energy system, constructing a regional integrated energy system joint scheduling structure comprising power-to-gas equipment P2G, energy source equipment, storage equipment and conversion equipment, analyzing the working mechanism of the power-to-gas equipment P2G, and establishing a carbon transaction model of the power-to-gas equipment P2G; secondly, establishing an integrated energy system optimization operation model considering the carbon transaction cost by taking system operation profit maximization as a target; and finally, verifying that the proposed model participates in the carbon trading market through simulation cases, so that the economic cost of the system can be reduced, the dependence of the comprehensive energy system on the external market is reduced, and the feasibility and economy are relatively high.

Description

technical field [0001] The invention belongs to the technical field of operation optimization of an integrated energy system, and specifically relates to a low-carbon economic scheduling method for an integrated energy system including P2G and energy storage. Background technique [0002] In recent years, China's renewable energy industry has developed rapidly. As of the end of June 2020, the national renewable energy (wind / light) installed capacity reached 433 million kilowatts. However, due to the unbalanced distribution of wind and solar resources, the high cost of grid investment and operation and maintenance, and the imperfect market trading mechanism, my country's renewable energy is currently in the predicament of low utilization efficiency, insufficient investment returns, and weak market competitiveness. With the rapid development of renewable energy, the pressure of traditional direct financial subsidies is increasing. [0003] In order to alleviate the difficult...

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Problems solved by technology

However, due to the unbalanced distribution of wind and solar resources, the high cost of grid investment and operation and maintenance, and the imperfect market trad...

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