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Study on coupled planning of power grid and gas network considering P2G device

As the concept of energy internet is proposed, heating network, power grid and gas network will couple with each other tightly so that a closed energy network will be built. Additionally, as the gas demand increases and consumption of redundant electricity becomes more and more urgent, the P2G(Power to Gas) unit has been proposed as a way to store electric energy in the form of gas. In this paper, the collaborative planning of the integrated energy system considering CCHP(Combined Cooling Heating and Power) and P2G units is studied. Accordingly, an integrated energy system including CCHP and P2G units is established, also, a power planning is performed for the integrated energy system through the enumeration method and the genetic algorithm. Finally, economic benefits are evaluated and the influence of the capacity of thermal network on the operation economy of the hybrid system is studied with the numerical examples.