Volume 38: Energy Transitions toward Carbon Neutrality: Part I

Energy Station-Network Collaborative Planning of Integrated Energy System Based on Exergy-potential Constraints Tianshuo ZHOU, Dan WANG, Hongjie JIA, Yizhe LI, Jiawei LIU

Abstract

Traditional research focuses on the quantity of energy while overlooking energy quality. Exergy-potential, as a critical state parameter for the energy quality of integrated energy system(IES), reflects the transport capability of effective energy. Based on the Exergy flow mechanism model of IES, this paper establishes an IES station-network joint planning model considering Exergy-potential constraints. The objective function is the minimization of the equivalent annual total cost, with Exergy-potential at IES nodes as new constraint conditions. The decision variables include the selection of energy pipelines and the 24-hour heat output of energy station equipment. Simultaneously, the accuracy and validity of the proposed method were validated in typical IES case studies. The results indicate that Exergy-potential constraints have an impact on the selection of energy pipelines and the capacity configuration of energy station equipment. Different Exergy-potential constraint conditions correspond to varying costs, and exergy loss for the planning scenarios.

Keywords integrated energy system (IES), exergy flow, exergy-potential, Energy Station-Network Collaborative Planning