Coordinative Optimization Operation on the Gas-Electricity Integrated Energy Systems

Integrated energy system (IES) can improve energy efficiency and optimize energy structure. Due to the similarity and coupling between electric power system and gas network, Gas-electricity integrated energy systems (GEIES) has always been the key research direction of integrated energy system. The optimization of electric power system and gas network is usually independent, the benefits of coordinative optimization are unclear. In this paper, an GEIES model is presented, which is optimized with the goal of maximum revenue under reasonable constraints. The case study shows that the coordinative optimization of GEIES can effectively improve the revenue. Coordinative optimization can increase the earning of electric power system and gas network by about 5% in the model.