Intelligent power grid safety and stability early-warning and control system

Abstract

The invention relates to an emergency protection circuit device capable of completing automatic switching when an AC-DC power grid is in an abnormal state, and in particular relates to an intelligent warning and control system dedicated for ensuring safety and stability of a power grid. The intelligent safety and stability early-warning and control system comprises a distributed computing platform and a multilevel zone control network, wherein the multilevel zone control network is composed of an intelligent control master station, intelligent control substations controlled by the intelligent control master station and arranged in each zone, and a plurality of intelligent control terminal stations respectively connected with each intelligent control substation; and two-way connections are constructed between the intelligent control master station and the intelligent control substations, between every two intelligent control substations and between the intelligent control substations and the subordinate intelligent control terminal stations. The real-time running data of the power grid is used to provide safety and stability early-warning information of the power grid so as to realize safety and stability control of the power grid and to realize the function of the second line of defense of the power system. The system provided by the invention can ensure safe and stable operation of the power grid by regulating a stability control device according to the running condition of the power grid.

Description

technical field [0001] The invention relates to an emergency protection circuit device capable of automatic switching when an abnormal state occurs in an AC and DC power grid, in particular to an intelligent early warning and control system dedicated to the safety and stability of the power grid. Background technique [0002] Energy management system (EMS) is an important tool for online analysis of provincial and regional power grid dispatching centers. It plays an important role in assisting dispatchers in decision-making. It is an indispensable tool for dispatching centers. Its main functions are composed of basic functions and application functions. consists of parts. Basic functions include computer, operating system and EMS support system. Application functions include data acquisition and monitoring (SCADA), generation control (AGC) and planning and network analysis. Traditional EMS uses online data for analysis and calculation, but the application mode of its netwo...

AI Technical Summary

Problems solved by technology

With the continuous increase of power receiving ratio and capacity of the power grid, as well as changes in the operation mode of the power grid, especially the implementation of partitioned operation, the potential threat to the security and stability of the power grid is increasing, and only the third line of defense is guaranteed. The stable operation of isolated partitions is relatively difficult. Once such an accident occurs, it is likely to cause the collapse of the local system, directly threatening the safety and stability of the partitioned power grid and even the entire large power grid.

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