General Synergic and Distributed Planning Models of Natural Gas and Electricity Systems and Integrated Energy Systems

Integrated energy system coupling with multi-energy devices, energy storage systems, and renewable energy systems is regarded as one of the most promising solutions for future energy systems. A general synergic planning model considering expansion of electricity system, natural gas system, and interior structure and site selection of integrated energy systems is proposed in this paper. Moreover, the joint planning model is decomposed into three planning sub-problems to represent different ownerships of the three agents, and the alternating direction method of multipliers (ADMM) is adopted to solve the tripartite distributed planning problem. Finally, the effectiveness of the planning method is verified on the updated version of IEEE RTS 24-bus electric system, Belgian 20-node natural gas system, and two assumed integrated energy systems.