Electric energy quality fuzzy comprehensive evaluation method

A fuzzy comprehensive evaluation and power quality technology, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of comprehensive and comprehensive results, and achieve more scientific and reasonable evaluation results

Pending Publication Date: 2020-11-06
SHANGHAI DIANJI UNIV
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Problems solved by technology

When analyzing based on probability and statistics methods, it is very dependent on the selection of benchmark values, and the results obtained are not comprehensive and comprehensive.

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  • Electric energy quality fuzzy comprehensive evaluation method
  • Electric energy quality fuzzy comprehensive evaluation method
  • Electric energy quality fuzzy comprehensive evaluation method

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Embodiment Construction

[0026] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. A preferred embodiment of the application is shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0027] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrated with the other element, or there may be intervening elements at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understoo...

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Abstract

The invention discloses an electric energy quality fuzzy comprehensive evaluation method. The fuzzy comprehensive evaluation method comprises the steps of constructing each evaluation index based on the fuzzy comprehensive evaluation method; constructing a weight vector W, wherein the weight vector W is the superposition of the adjustment weight in the excitation state and the constant weight of each evaluation index; constructing a cloud membership function according to the normal cloud model and forming a fuzzy relation matrix R; constructing a fuzzy comprehensive evaluation vector B according to the weight vector W and the fuzzy relation matrix R; processing the fuzzy comprehensive evaluation vector B according to a confidence criterion to obtain a comprehensive evaluation value. According to the invention, the influence of subjective factors in the evaluation process is avoided; the method is advantaged in that the acquired evaluation result is more scientific and reasonable, satisfactory comprehensive evaluation results are acquired, confidence degree information of the evaluation result can be further provided, reasonable and objective analysis on the electric energy qualityis carried out, construction of the electric energy quality market is facilitated, and cost reduction and benefit improvement of individual users and power enterprises are facilitated.

Description

technical field [0001] The invention relates to the field of electric energy quality evaluation methods, in particular to evaluating electric energy quality using a fuzzy comprehensive evaluation method. Background technique [0002] At present, commonly used evaluation methods can be roughly divided into four categories: methods based on intelligent optimization algorithms, methods based on the principles of probability and statistics, methods based on matter-element analysis, fuzzy comprehensive evaluation methods based on comprehensive mathematical theory, etc. The method based on intelligent optimization algorithm requires a huge amount of basic data of the object to be evaluated, and the model it builds lacks physical meaning. When analyzing based on probability and statistics methods, the selection of benchmark values ​​is very dependent, and the results obtained are not comprehensive and comprehensive. The method based on matter-element analysis regards the problems ...

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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 沈灿然胡兰馨
Owner SHANGHAI DIANJI UNIV
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