Low-carbon dispatching method and device for electric-gas combined system

The invention discloses a low-carbon scheduling method and device for an electric-gas combined system, and the method comprises the steps: obtaining the parameter information and carbon transaction price information of each generator set in the electric-gas combined system in a preset time period in real time, and enabling the generator sets to comprise a gas generator set and a non-gas generator set; according to the parameter information and the carbon transaction price information of each generator set, a low-carbon scheduling model with the purpose of minimizing the sum of the operation cost and the carbon transaction cost of the electric and gas combined system is constructed, and the low-carbon scheduling model takes an electric power system constraint, a natural gas system constraint and an electric and gas combined system coupling constraint as constraint conditions; solving the low-carbon scheduling model to obtain optimal start-stop state information and output information of each generator set; acc