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

A fuzzy comprehensive evaluation and operation level technology, applied in the direction of instruments, data processing applications, information technology support systems, etc., can solve the problems of single information volume and increase the reference value of evaluation results, etc.

Inactive Publication Date: 2019-01-15
NORTHEAST DIANLI UNIVERSITY
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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

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

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Embodiment

[0284] Embodiment: AHP-entropy weight method is used to obtain the comprehensive weight of each index

[0285] First, use the AHP to determine the weight, and get A according to formula (23) ~ formula (29) 1 The subjective weight of the four secondary indicators under the indicator is W A1 '=(0.246, 0.282, 0.273, 0.199); A can be obtained from formula (30) ~ formula (36) 1 The entropy weight of the four secondary indicators under the indicator is W A1 "=(0.224,0.268,0.268,0.240); A can be obtained by formula (37) 1 The comprehensive weight vector W of the four secondary indicators under the indicator A1 =(0.219, 0.300, 0.291, 0.190); Similarly, the comprehensive weight calculation is performed on other secondary indicators, and the results are shown in Table 5;

[0286] Table 5 The comprehensive weight of distribution network operation level and power supply capacity evaluation index

[0287]

[0288]

[0289] 5) Construct the fuzzy evaluation function to obtain the...

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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...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y04S10/50
Inventor 肖白赵殿平姜卓
Owner NORTHEAST DIANLI UNIVERSITY
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