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Fuzzy comprehensive evaluation method for economic operation of power distribution network

A technology of fuzzy comprehensive evaluation and fuzzy comprehensive evaluation, applied in the field of fuzzy comprehensive evaluation of economic operation of distribution network, can solve problems such as uncertainty, divergence of comprehensive score intervals, ambiguity, etc., to achieve outstanding substantive characteristics and wide application prospects 、Reliable effect of design principle

Pending Publication Date: 2020-01-14
STATE GRID SHANDONG ELECTRIC POWER CO SHOUGUANG POWER SUPPLY CO +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no effective technical solution for the economic evaluation of distribution network operation, and it is impossible to find out the weak link in the operation of the power grid. The economic operation and loss reduction of the distribution network lack technical support.
However, the existing economic evaluation schemes for distribution network operation are ambiguous and random, and there are uncertainties in expert judgments, and the problem of divergence of comprehensive score intervals

Method used

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  • Fuzzy comprehensive evaluation method for economic operation of power distribution network
  • Fuzzy comprehensive evaluation method for economic operation of power distribution network
  • Fuzzy comprehensive evaluation method for economic operation of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Such as figure 1 As shown, the present invention provides a fuzzy comprehensive evaluation method for economic operation of a distribution network, which includes the following steps:

[0059] S1. Establish an evaluation index system for economic operation of the distribution network;

[0060] S2. Establish a comment set, and generate a standardized evaluation matrix of the economic operation evaluation index of the distribution network based on the comment set;

[0061] S3. Based on the entropy value modified AHP weighting, weight calculation of each distribution network economic operation evaluation index;

[0062] S4. Establish a fuzzy calculation model for the economic operation of the distribution network, and perform fuzzy processing calculations on the standardized evaluation matrix.

Embodiment 2

[0064] Such as figure 2 As shown, the present invention provides a fuzzy comprehensive evaluation method for economic operation of a distribution network, which includes the following steps:

[0065] S1. Establish an evaluation index system for the economic operation of the distribution network; the specific steps are as follows:

[0066] S11. Establish an evaluation index system for the economic operation of the distribution network according to the needs of the economic operation of the distribution network;

[0067] S12. Generate the hierarchical structure of the evaluation index system for the economic operation of the distribution network, the hierarchical structure including the target layer, the criterion layer and the factor layer;

[0068] S13. Generate elements of the quasi-measurement layer under the target layer of the economic operation evaluation index system of the distribution network;

[0069] S14. Generate the evaluation index elements of the factor level under each q...

Embodiment 3

[0085] The difference from Example 2 is that image 3 As shown,

[0086] The specific steps of step S32 are as follows:

[0087] S321. Sort the importance of each evaluation index according to the calculated entropy of the evaluation index;

[0088] S322. Calculate the average of the entropy value of the evaluation index in each quasi-measurement layer as the entropy value of the quasi-measurement layer;

[0089] S323. Sort the importance of each quasi-measurement layer according to the entropy value of the quasi-measurement layer;

[0090] The specific steps of step S33 are as follows:

[0091] S331. Establish a judgment matrix between two evaluation indexes according to the importance of evaluation indexes in each quasi-measurement layer;

[0092] S332. Calculate the random consistency ratio of the judgment matrix, and judge whether the random consistency ratio is less than the set value;

[0093] If yes, go to step S34;

[0094] If not, adjust and modify the judgment matrix, and return t...

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Abstract

The invention provides a fuzzy comprehensive evaluation method for economic operation of a power distribution network. The fuzzy comprehensive evaluation method comprises the following steps: S1, establishing an economic operation evaluation index system of the power distribution network; S2, establishing a comment set, and generating a standardized evaluation matrix of the economic operation evaluation indexes of the power distribution network according to the comment set; S3, performing weight calculation on each power distribution network economic operation evaluation index based on entropycorrection AHP weighting; and S4, establishing a power distribution network economic operation fuzzy calculation model, and performing fuzzy processing calculation on the standardized evaluation matrix. According to the power distribution network economic operation fuzzy comprehensive evaluation method provided by the invention, the problem that grading boundary information has fuzziness and randomness in current power distribution network economic operation comprehensive evaluation is avoided, the uncertainty of expert judgment is reasonably processed, and meanwhile, the problem of divergence of comprehensive score interval numbers is avoided.

Description

Technical field [0001] The invention belongs to the technical field of evaluation of the economic operation of the distribution network, and specifically relates to a fuzzy comprehensive evaluation method for the economic operation of the distribution network. Background technique [0002] With the reform of the power system, people are increasingly concerned about economic benefits, and the losses of the distribution network account for more than half of the total losses of the power grid. The economic operation of the distribution network is a highly practical energy-saving technology, which means that on the basis of ensuring the safe operation of the distribution network and the quality of power supply, various technical measures are adopted to minimize the loss of power supply lines and distribution transformers. All kinds of losses give play to the scale benefits of the network. Improving the economic operation level of the distribution network is of great significance to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 张成龙王效平田兴华刘军寇晗刘伟成
Owner STATE GRID SHANDONG ELECTRIC POWER CO SHOUGUANG POWER SUPPLY CO
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