Power grid short-circuit safety intelligent decision-making method and system fusing expert knowledge

Abstract

The invention discloses a power grid short-circuit safety intelligent decision-making method and system fusing expert knowledge, and the method comprises the steps of carrying out the short-circuit current calculation according to the basic operation mode power flow data of a power grid and a transient stability model, and obtaining a short-circuit current standard-exceeding bus; generating an expert knowledge rule base according to the power grid basic operation mode power flow data and the short-circuit current standard-exceeding bus; generating an extended operation mode set according to the power grid basic operation mode trend data and the expert knowledge rule base; according to the extended operation mode set and the transient stability model, performing island detection and short-circuit current calculation check of the extended operation mode set, and forming a short-circuit safe operation mode set; and performing short-circuit safety evaluation index calculation on the short-circuit safety operation mode set, generating a short-circuit safety optimal operation mode set through screening, and making a decision on power grid short-circuit safety operation by selecting a short-circuit safety optimal operation mode in the operation mode set. The problems that in the prior art, labor cost is large, the number of analysis samples is limited, and an optimization decision scheme is difficult to obtain are solved.

Description

technical field [0001] The application relates to the field of power grid analysis and control, in particular to a power grid short-circuit safety intelligent decision-making method that integrates expert knowledge, and also relates to a power grid short-circuit safety intelligent decision-making system that integrates expert knowledge. Background technique [0002] The formulation of the power grid operation mode plan plays a vital role in ensuring the safe and economical operation of the entire power grid and ensuring high-quality and reliable power supply for users. With the strengthening of electrical connections in the power grid, large-scale new energy access, rapid changes in the grid structure and the commissioning of new electrical equipment, the power grid has gradually developed into a network system with multi-source access, high density, and multiple loads. The more variable factors are affected, the problem of excessive short-circuit current becomes more promin...

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Problems solved by technology

[0006] This application provides a power grid short-circuit safety intelligent decision-making method and system that integrates expert knowledge, which solves the problems of the prior art, such as high labor cost, limited number of analysis samples, poor practicability, and difficulty in obtaining optimal decision-making schemes.

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