Optimal dispatch of integrated energy systems considering integrated demand response and stepped carbon trading

The integrated energy system is an effective way to achieve carbon neutrality. To further exploit the reduction potentials of IESs, optimal dispatch strategy that considers demand response and stepped trading proposed. First, (IDR) pricing approach proposed based on characteristics different load types. Classify multi-energy loads into curtailable substitutable loads, incentivize both through a price elasticity matrix low-price in same period. Then, better IESs reduce emissions, mechanism was introduced price. Finally, model developed with objective function minimizes sum purchase cost, operation maintenance (O&M) cost. Considering high-dimensional non-linear model, improved differential evolution (DE) algorithm this paper. In addition, paper also analyzes effects parameters dispatching results terms base price, emission interval length, growth rate. Compared case adopting single IDR or trading, emissions from decreased by 6.28% 3.24%, respectively, while total operating costs 1.24% 0.92%, show has good environmental economic benefits, reasonable setting can effectively promote low-carbon development IESs.