Grid structure survivability assessment method of power grid

Abstract

The present invention discloses a grid structure survivability assessment method of a power grid. The method comprises: obtaining configuration information of each configuration item of a power grid, wherein each configuration item is a pre-determined configuration item configured to assess the grid structure survivability of the power grid; based on the configuration information of each configuration item, determining the value of each primary assessment index configured to assess the grid structure survivability of the power grid; based on the value of each primary assessment index and the secondary assessment class and secondary assessment weight which each primary assessment index belongs to, determining the value of each primary assessment index configured to assess the grid structure survivability of the power grid; and based on the value of each primary assessment index and the high-grade assessment weight preset by each primary assessment index, determining the value of the high-grade assessment index configured to assess the grid structure survivability of the power grid. The grid structure survivability assessment method of the power grid considers the internal and external factors of influencing the grid structure survivability of the power grid and establishes multi-grade assessment indexes so as to realize the integration assessment of the power grid survivability, improve the assessment reliability and establish technology basis for the planning of the power grid.

Description

technical field [0001] The invention relates to the technical field of power grid planning, in particular to a method for evaluating the survivability of a grid structure of a power grid. Background technique [0002] The power grid is an important infrastructure to ensure social and economic development, security and stability, but in recent years, frequent blackouts, extreme natural disasters and deliberate attacks have seriously threatened the safe operation of the power grid. Survivability evaluation is used to evaluate the ability of the system to complete its key tasks under various disturbances. The introduction of power grid to survivability assessment has brought new ideas to the security assessment of power grid. The survivability of the grid structure refers to the ability of the grid to provide basic services, that is, the ability of the grid to complete tasks in a timely manner as required in the face of attacks, failures, and accidental events. [0003] The f...

AI Technical Summary

Problems solved by technology

The existing grid structure survivability assessment or vulnerability assessment theory has achieved many results, but there are still some imperfections. For the in-depth analysis and evaluation of the interrelationship between the balance and vulnerability of the power grid structure, there are few comprehensive evaluations of the survivability of the power grid structure under the normal operation mode of the power grid and the power grid disturbance state from the perspective of combining internal and external factors

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