Method and device for optimizing integrated energy system

The invention provides an optimization method and device for an integrated energy system, and belongs to the technical field of power systems. The method comprises the steps that based on a pre-constructed comprehensive energy system architecture, a carbon emission capture model and a multi-time scale response strategy are constructed, the carbon emission capture model comprises a carbon capture equipment model and a carbon transaction model, and the multi-time scale response strategy comprises the carbon capture equipment model and the carbon transaction model; the multi-time scale response strategy comprises a price type model of an electric load and a gas load, an excitation type model of the electric load and the gas load, and an excitation type model of a thermal load; constructing a day-ahead low-carbon optimal scheduling model and an intra-day optimal scheduling model based on the carbon emission capture model and a multi-time scale response strategy; and based on a multi-target grey wolf optimization