Abstract:In order to meet the timeliness requirement of real-time risk assessment of power grid operation and solve the problem of coordination between efficiency and accuracy in real-time risk assessment and grading of power grid operation, a fast grading method is proposed based on the current national and major power grid enterprises" grading standards for power grid operation accidents. The fast grading method fully considers the actual characteristics of power grid operation, and adopts two main measures, data governance and algorithm reconstruction, to optimize the original method. Through data governance, the dependency on external data is greatly reduced and some unnecessary input data is eliminated. The algorithm is used to refactor, and the operational risk rating is closely related to the actual business process. Based on the fast grading method, a real-time operation risk management system supporting the risk analysis and accident disposal of power grid is constructed, and the functional framework and system architecture of the system are introduced. Finally, combined with the actual application of the system in Guizhou, the practical use benefits of the rapid grading method are analyzed.