A Method for Establishing Reliability Correlation Model of Distribution Network

A related and reliable technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of unconsidered index balance, lack of objectivity and scientificity, etc., achieve a scientific and reasonable reliability level, and overcome strong subjectivity , to eliminate conflicting effects

Active Publication Date: 2021-12-21
SOUTHEAST UNIV +2
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  • Claims
  • Application Information

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Problems solved by technology

However, such methods rely on expert experience and lack objectivity and scientificity.
In addition, the method of scoring reliability with constant weight coefficients combined with various factor indicators does not consider the balance of indicators, so it is necessary to establish an evaluation model that is closer to the real situation

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  • A Method for Establishing Reliability Correlation Model of Distribution Network
  • A Method for Establishing Reliability Correlation Model of Distribution Network
  • A Method for Establishing Reliability Correlation Model of Distribution Network

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. This embodiment is implemented on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0071] In this example, the 2012-2015 Suzhou 10kV distribution network Class A power supply area is selected as the research object, and a distribution network reliability correlation and evaluation model based on DS evidence and variable weight theory is established.

[0072] Such as figure 1 The double-layer evaluation index of the distribution network reliability of the present invention includes an upper layer index and a lower layer index; wherein, the upper layer index is the factor that affects the reliability during the planning period of the distribution network, which is recorded as the "factor layer", which macroscopically Summarized...

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Abstract

The invention discloses a distribution network reliability correlation and evaluation model based on DS evidence and variable weight theory and its establishment method. The model covers distribution network reliability double-layer evaluation indicators, including upper-level indicators and lower-level indicators; Denote it as "factor layer"; the lower index is marked as "performance layer"; this method includes analyzing the influencing factors of distribution network reliability, clarifying the double-layer evaluation indicators of distribution network reliability and influencing factors; establishing distribution network reliability A single gray correlation degree model between two-layer evaluation indicators; a comprehensive gray correlation model between two-layer indicators of distribution network reliability is constructed based on the entropy weight method and DS evidence theory respectively; considering the balance of each influencing factor, the variable weight is introduced The evaluation model of distribution network reliability is theoretically established, and the comprehensive score of reliability planning scheme is obtained. The invention solves the subjectivity and one-sidedness of the single gray relational degree model, and simultaneously considers the influence of factor changes on the weight, so that the evaluation result is closer to the real value.

Description

technical field [0001] The invention relates to a distribution network reliability planning model and a method for establishing the model, in particular to a method for establishing a distribution network reliability correlation model. Background technique [0002] The distribution network is directly connected to the power generation and transmission network and users, and is responsible for supplying and distributing electric energy to users. Its reliability is related to the quality of electricity used by users. The rapid economic development and the diversified needs of users continue to drive the planning and construction of high-reliability distribution networks. In order to clarify the influence mechanism of various factors on the reliability of the distribution network and take targeted measures for construction and transformation, it is necessary to study the factors associated with the reliability of the distribution network, and evaluate the scheme from the perspe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 吴在军孙若萱胡文强窦晓波胡敏强罗宇超周洪伟安增军李妍王球黄成辰王庭华
Owner SOUTHEAST UNIV
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