A method for optimal configuration of short-circuit current control measures in large-capacity power grid

Abstract

The invention provides a large-capacity power gird short-circuit current control measure optimization configuration method, and the method comprises the steps: 1, determining a development stage of a target power grid; 2, determining a short-circuit current standard-exceeding mode of the target power grid; 3, analyzing the short-circuit current standard-exceeding time stage, and determining a short-circuit current limiting measure according to the time stage; 4, determining a primary election configuration scheme of the short-circuit current limiting measure; 5, analyzing the primary election configuration scheme, and obtaining a final configuration scheme meeting the demands of the target power grid. Compared with the prior art, the method provided by the invention can propose short-circuit current control measures for different development stages of the power grid in a systematic manner according to an optimization comparison and selection rule, and can be used for solving a problem of short-circuit current control in the planning construction and operation control of the power grid.

Description

technical field [0001] The invention relates to a current control optimization method, in particular to a large-capacity power grid short-circuit current control measure optimization configuration method. Background technique [0002] The rapid development of the power system, the increase in the capacity of single machines and power plants, the capacity of substations, the load and load density of cities and industrial centers, and the interconnection between power systems have led to the continuous increase of short-circuit current levels in all levels of power grids in modern large power systems . On the one hand, the short-circuit current level reflects the safety and reliability of the power grid. A high short-circuit current level is a strong symbol of a highly interconnected power system, which means that the impedance between the power source and the load is low, making the system have better transient stability. stability, good voltage levels and reduce the risk of...

AI Technical Summary

Problems solved by technology

[0003] At present, in actual planning, scheduling, and production operation, empirical measures are often used to control the short-circuit current of the power grid. Although the control measures adopted have also undergone in-depth economic and technical comparisons, due to lack of systematic , regular configuration method, the implementation effect of control measures cannot be guaranteed

In view of this problem, it is necessary to propose a configuration method for short-circuit current control measures of the power grid, which is used to guide the selection of short-circuit current control measures in the planning, construction and operation control of the power grid, and solve the problem of excessive short-circuit current in the development of large power grids.

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