Fuzzy Comprehensive Evaluation Method of Urban Distribution Network Operation Level and Power Supply Capacity Based on AHP-Entropy Weight Method

Abstract

The invention is a fuzzy comprehensive evaluation method of urban distribution network operation level and power supply capacity based on AHP-entropy weight method, and is characterized in that it includes the following steps: synthetically considering the factors affecting the operation level and power supply capacity of urban distribution network, following the construction principle of evaluation index system, establishing the comprehensive evaluation index system of urban distribution network operation level and power supply capacity; according to the actual situation of distribution network, grade refinement degree is determined to constitute evaluation set, and appropriate membership function model is selected to obtain the membership degree of each evaluation index to the evaluationgrade, forming fuzzy evaluation matrix; analytic hierarchy process (AHP) and entropy weight method are used to determine the weight of each index, so that both subjectivity and objectivity can be taken into account. The fuzzy comprehensive evaluation function is constructed to calculate the fuzzy comprehensive evaluation results of the operation level and power supply capacity of urban distribution network, and the grade level of the operation level and power supply capacity of urban distribution network to be evaluated is determined according to the maximum membership degree principle.

Description

technical field [0001] The invention relates to the evaluation field of urban distribution network operation level and power supply capacity, and is a fuzzy comprehensive evaluation method for urban distribution network operation level and power supply capacity based on AHP-entropy weight method. Background technique [0002] The urban distribution network is an important link in the entire power system that directly connects with users, supplies and distributes electric energy to users, and its operating status directly affects the quality of electricity used by users and the economic benefits of power supply companies. Accurate evaluation of the operation level and power supply capacity of the urban distribution network can not only assess the operation status of the existing distribution network, but also find out the weak links in the operation of the distribution network, and clarify the gap and needs with the target It is of great practical significance to the operatio...

AI Technical Summary

Problems solved by technology

The present invention adopts a combined weight determination method that takes into account both subjective and objective information to solve the problem of selecting weight coefficients, and improves the shortcomings of too much subjectivity in the evaluation process of the traditional urban distribution network operation level and power supply capacity; the evaluation result covers a large amount of information Vector, to avoid the drawbacks of the single amount of information in the traditional method with only a specific value as the result, and to increase the reference value of the evaluation results

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