Decision support system and method for supporting gas network scheduling by surplus power grid resources

The invention discloses a decision support system and method for supporting gas network scheduling by surplus power grid resources. The system comprises an electricity-gas converter maximum reduciblepower generation capacity estimation module, an electricity-gas converter equivalent natural gas conversion cost calculation module, a cost equivalent natural gas quantity function module, an optimalgas network bidding module considering price and cost, and an optimal surplus power grid resource distribution module corresponding to the equivalent natural gas quantity. According to the decision support system and method for supporting gas network scheduling by surplus power grid resources, only the power grid and the gas network are involved, the complexity of the system is greatly reduced, and the stability of the system is facilitated. In addition, according to the system and the method, P2G equipment or combined heat and power generation equipment does not need to be used when electricity is converted into gas,