Low-carbon Optimization Operation of Integrated Energy System Considering Ladder-type Carbon Trading and Carbon Capture

Integrated energy system (IES) is an ideal method to improve the energy utilization efficiency and cut down the emission of CO2. In this paper, different carbon trading mechanisms are applied to study the advantage of ladder-type carbon trading mechanism. Numerical results show its advancement in carbon emission reduction. Then, generators with different capacity and carbon emission intensity are transformed into carbon capture devices respectively to study the influence of carbon capture in low-carbon economic operation of IES. Results show that generators with large capacity and low carbon emission intensity are more suitable to be transformed into carbon capture device.