Comprehensive energy system optimization scheduling method containing P2G and CCS coupling based on stepped carbon transaction

The invention discloses a P2G and CCS coupling-containing integrated energy system optimization scheduling method based on stepped carbon transaction. The method comprises the steps of constructing an integrated energy system model which comprises a P2G-CCS coupling system, a cogeneration unit, a gas boiler, an electric boiler, a wind turbine generator, an energy storage device and the like and considers demand response; introducing a stepped carbon transaction mechanism, analyzing the constraint of the stepped carbon transaction mechanism on the carbon emission of the integrated energy system, and establishing a stepped carbon transaction mechanism model of the integrated energy system; aiming at the uncertainty of new energy in the park, performing typical scene generation on wind and light output by using kernel density estimation and a Copula function; and establishing a low-carbon economic dispatching model of the integrated energy system by taking the minimum energy purchasing cost, the minimum equipmen