考虑天然气-电力耦合的多能源系统风电消纳分析

Gas-steam combined cycle units couple various energy systems into multi-energy systems, such as electricity, heat and air-conditioning. The application of electricity-to-gas ( P2G ) technology helps to eliminate wind abandonment and further strengthens the coupling between power system and natural gas system. In this paper, the principle of abandoning wind in P2G and the start-stop control strategy of P2G equipment are discussed, and the gas storage and gas-electricity coupling system model of natural gas pipeline is established, and the multi-energy system cooperative optimal dispatching model considering natural gas-electricity coupling operation is constructed. Finally, through numerical simulation, the wind abandonment effect of multi-energy system considering natural gas-electricity coupling and the relationship between gas storage capacity of natural gas pipeline network and P2G allocation capacity are analyzed. The research shows that the abandoned wind can be further eliminated by making full use of the gas storage capacity of natural gas pipeline network, and the larger the gas storage capacity of pipeline network, the smaller the P2G capacity of system configuration.