A fuzzy comprehensive evaluation method for the efficiency of secondary equipment of an intelligent substation

Abstract

The invention provides a fuzzy comprehensive evaluation method for the efficiency of secondary equipment of an intelligent transformer substation, aiming at solving the problems that an existing evaluation method for the energy efficiency of the secondary equipment of the intelligent transformer substation is complex in process, high in calculation difficulty and low in efficiency, and subjectivefactors greatly influence an evaluation result in the evaluation process. The method comprises the steps of collecting expert opinions through an electronic conference analysis method, and calculatingthe weight of a first-level evaluation index; Establishing a fuzzy relation matrix of each primary evaluation index by utilizing the selected membership function, and further determining the weight of the secondary evaluation index under each primary evaluation index; And obtaining a fuzzy comprehensive evaluation result of each primary evaluation index through the weight of the secondary indexesand the fuzzy relation matrix, analyzing the fuzzy comprehensive evaluation result, and finally obtaining an evaluation result of the energy efficiency of the secondary equipment of the intelligent substation. According to the method, the working efficiency is improved, the system and the equipment can be quickly optimized, the influence caused by subjective opinions is reduced, and the reliability of an assessment result is improved.

Description

technical field [0001] The invention relates to the technical field related to monitoring and evaluation of smart substations, in particular to a fuzzy comprehensive evaluation method for the effectiveness of secondary equipment in smart substations. Background technique [0002] On the basis of the digital substation, the smart substation develops towards the intelligentization of primary equipment at the process level and the integrated information platform at the station control level. The smart substation divides the whole station into station control layer, interval layer and process layer. The smart primary equipment of the smart substation monitors and controls the operation status of the key equipment in the substation in real time through technologies such as sensors, microprocessors, and digital communication systems; the secondary equipment controls, protects, monitors, and measures the primary equipment, and through the device itself The processor collects, acce...

AI Technical Summary

Problems solved by technology

[0009] The present invention aims at the problems of cumbersome process, difficult calculation and low efficiency in the existing energy efficiency evaluation method of the secondary equipment of the intelligent substation, and the subjective factors in the evaluation process have a great influence on the evaluation result, and provides a secondary equipment of the intelligent substation A Fuzzy Comprehensive Evaluation Method of Effectiveness

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