Dynamic verification and soft handover method for online state entering of power grid model

Abstract

The invention discloses a dynamic verification and soft handover method for the online state entering of a power grid model, which belongs to the technical field of power grid model management of a power system. The method is characterized in that: the updated data of the power grid model in a scheduling system may not directly enter an online state in an operation system, and can be downloaded into a real-time database of the operation system only after static model verification and dynamic model verification; when the verified model enters the online state, only incremental model data is downloaded by adopting a real-time database row-level dynamic downloading technology, thereby realizing the seamless soft handover of the power grid model; and a model returning mechanism is provided, and the by-the-user verification and enabling of the model is supported, so the parallelism of operations of a plurality of users is ensured, and the consistency of the data of the model is also ensured. By the method provided by the invention, the accuracy of the model can be maximally ensured, the model is ensured not to influence the real-time operation system in the online state entering process to realize disturbance-free online state entering, and the operation reliability and continuity of an online system are ensured.

Description

technical field [0001] The invention belongs to the technical field of power system network model management, in particular to a dynamic verification and soft switching method for putting a network model online. Background technique [0002] With the construction of UHV synchronous power grids in North China, East China and Central China (referred to as "Sanhua"), the development of the power grid has entered a new stage, and the characteristics of the power grid have shown the characteristics of integration. The research on integrated model management technology provides complete, consistent, accurate, timely and reliable integrated models and basic data for the analysis and decision-making applications of intelligent scheduling, which is one of the key technologies of intelligent scheduling. [0003] Putting the grid model online refers to putting the modified grid model from the offline state into the real-time system running online in the dispatching system. At present...

AI Technical Summary

Problems solved by technology

At present, there are two methods for modeling the power grid model of the dispatching system, online or offline. Online modeling is convenient and simple, but the correctness of the model cannot be verified, which affects the reliability of the system. Offline modeling currently only supports offline static verification and lacks Offline dynamic verification technology can only conduct simple checks on the connection relationship, parameter rationality, etc., and cannot fully verify the correctness of the model; in addition, the existing models generally use hard switching technology when they are cast online, which lacks model protection and control mechanisms during the switching process

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