Heat supply capacity calculation method and system for electric heating comprehensive energy system of flexible thermal power plant

The embodiment of the invention discloses a heating capacity calculation method and system for an electric heating comprehensive energy system containing a flexible thermal power plant. The method comprises the steps: S1, building a power generation load calculation model corresponding to the flexible thermal power plant, and enabling the power generation load calculation model to obtain a power generation load curve based on a power generation load per-unit curve; s2, a new energy output calculation model corresponding to the thermal power plant with flexibility is created, and the new energyoutput calculation model can obtain a new energy generation power curve based on the per-unit curve of the new energy generation capacity and the installed capacity; s3, according to the electric heating characteristics of a thermoelectric unit of the thermal power plant, the heat supply capacity of the thermoelectric unit in each time period is calculated; and S4, establishing a total heat supply capacity model of all t