Power transmission and transformation system reliability statistics evaluation method based on circuit and connection points

Abstract

The invention provides a power transmission and transformation system reliability statistics evaluation method based on a circuit and connection points. The power transmission and transformation system reliability statistics evaluation method comprises the following steps: dividing each bus line, each main transformation line and each power transmission line in a power transmission and transformation system to generate a logic circuit; dividing each physical connection point; obtaining the power transmission and transformation facility outage event information of a reliability management system, and calculating a conversion coefficient of the logic circuit according to a loss degree of a logic circuit function due to the outage event; obtaining a power supply reliability outage event of the reliability management system, and recording a connection point outage event and outage loss into a logic circuit outage event and connection point outage influence; obtaining the logic circuit outage event, calculating the power transmission and transformation reliability index of the logic circuit; and obtaining the outage influence of each class of physical connection points, and carrying out accumulative calculation on the comprehensive reliability index of the power transmission and transformation system. The power transmission and transformation system reliability statistics evaluation method adds the evaluation index of a space truss structure toughness degree and the evaluation index of power supply continuity, and therefore, a power transmission and transformation system reliability statistics evaluation result is complete and accurate.

Description

technical field [0001] The invention relates to the field of grid reliability evaluation, in particular to a reliability statistical evaluation method for power transmission and transformation systems based on loops and connection points. Background technique [0002] A comprehensive and objective evaluation of the reliability of the transmission system can provide a more scientific decision-making basis for the planning and operation of the power grid, and is of great significance for improving the reliable power supply level of the entire power system. [0003] In the prior art, when evaluating the reliability of the power transmission and transformation system, the technical solution adopted is to evaluate each facility or equipment in the power transmission and transformation system separately, and then obtain the overall evaluation of a certain type of equipment in the power transmission and transformation system result. [0004] The inventor found through research tha...

AI Technical Summary

Problems solved by technology

[0004] The inventor found through research that the evaluation methods in the prior art often cannot accurately reflect the overall performance indicators of the power transmission and transformation system, that is, the overall evaluation results of the power transmission and transformation system obtained by the evaluation methods in the prior art are not complete enough

Images