Multi-energy Flow Sub-network Model and Optimal Scheduling for Regional Energy Internet

Improving the efficiency of energy utilization and strengthening the comprehensive utilization of renewable energy have become the focus of attention and research hotspot of the whole society. In this paper, firstly, the system architecture of regional energy internet is studied, and the coupled equipment and energy supply network are analyzed; furthermore, the energy hub (EH) model is constructed, and the electric power sub-network model, the heating (cooling) sub-network model and the gas supply sub-network model are constructed respectively; then, based on the constructed network model, the economic and energy efficiency improvement is proposed by taking into consideration of the constraints of the equipment and the sub-network of the various energy flows to achieve the optimal scheduling method; finally, the example verification is carried out in combination with the typical scenarios of real industrial energy internet. Simulation results show that the model and optimal scheduling method proposed in this paper can effectively improve energy efficiency and economy.