A Power System Reliability Assessment Algorithm Considering Disasters and Human Factors

Abstract

The invention discloses a power system reliability evaluation algorithm comprehensively considering both disasters and human factors. The first step is as follows: the transmission lines of the powersystem are divided into four types, aiming at the transmission lines of different power systems and considering the influence of human operation and disaster on line reliability, the reliability of the whole power system is calculated by synthesizing the reliability of all kinds of transmission lines, including four kinds of transmission lines and other equipments of the power system, the reliability including reliability evaluation indexes such as probability of power shortage time and expectation value of power shortage. The invention refines the influence of the external factors on the power system to the influence on the transmission line, combines the influence of the disaster factors and the human factors, perfects the reliability analysis of the power system, and makes the calculation result more in line with the reality.

Description

technical field [0001] The invention belongs to the field of power system reliability evaluation considering multiple factors acting together, and in particular relates to a power system reliability evaluation algorithm that comprehensively considers disasters and human factors. Background technique [0002] Reliability technology was first developed from the aerospace industry and the electronics industry after the Second World War. The task of the power system is to provide users with continuous and qualified electrical energy. Due to various equipment in the power system, including primary equipment such as distributed power supplies, transformers, transmission lines, and circuit breakers, and their supporting secondary equipment, different types of faults will occur, which will affect the normal operation of the power system and the normal power supply to users. Power system failures will cause varying degrees of economic losses to power companies, users and certain link...

AI Technical Summary

Problems solved by technology

[0007] Disadvantage 1 of the existing technology: Traditional power system reliability prediction only considers the influence of disaster factors, but does not consider the reliability analysis under the action of multiple factors

[0008] Disadvantage 2 of the existing technology: Traditional power system reliability prediction only considers the influence of human factors, but does not consider the reliability analysis under the influence of multiple factors

[0009] Disadvantage 3 of existing technology: Traditional reliability often analyzes disaster factors as a whole, that is, considers the impact of disasters on equipment in the entire power system, but in actual situations, for the entire power system, transmission lines are affected Where hazards hit hardest, especially in the event of ice cover and high wind hazards

[0010] Disadvantage 4 of the existing technology: The traditional analysis of human factors in power systems often focuses on substations, but the most common operation in human factor operations is the opening and closing of circuit breakers, which has the greatest impact on transmission lines operation, so the reliability analysis of the power system considering human factors should take the transmission line as the main body to consider

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