Interval Linear Energy Flow Model of Electricity and Natural Gas Coupling System Considering the Uncertainty of Wind Power

Under the background of the wide application of gas turbines and the wide access of renewable energy such as wind power, more attention should be paid to the impacts of the uncertainty on the operation security of the natural gas system. In order to analyze this influence, the interval method is introduced in this paper, which avoids too much data statistics and dependence on experience. In order to solve the conservative problem of the interval method and improve the analysis speed, this paper proposes the interval linear energy flow model and its solution method and proposes a one-time iterative method to improve the calculation accuracy of the model. The effectiveness of the method is verified in numerical studies.