Research on Optimization of RIES Powered by Composite Energy Pipeline

Compared with the separate power (SP) system used in the traditional regional integrated energy system (RIES), the emerging composite energy pipeline (CEP) has a low energy transmission loss rate and a high energy comprehensive utilization efficiency. As a multi-energy flow transmission method, the CEP carries a large amount of cold energy while transmitting electrical energy and natural gas. This paper builds RIES based on CEP energy supply. The system meets the cooling load demand of the RIES by recycling the cold energy carried by the CEP, while reducing energy transmission losses and improving energy utilization. On this basis, considering the system's multi-energy coupling relationship, a multi-energy flow optimization scheduling model is established to achieve the optimal operation of the system. Finally, the effectiveness of the proposed system and model is verified by simulation analysis.