Method for selecting differentiated transformation scheme of power secondary equipment

A secondary equipment and differentiated technology, applied in the direction of logic circuits, electrical components, complex mathematical operations, etc., can solve the problems of lack of mature and general standards and theoretical basis, so as to reduce the owner's cooperation time, reduce the influence of subjective factors, Metrics across the board

Active Publication Date: 2020-01-24
HOHAI UNIV
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Problems solved by technology

As for when to adopt which transformation plan, there is no mature and general standard and theoretical basis so far.

Method used

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  • Method for selecting differentiated transformation scheme of power secondary equipment
  • Method for selecting differentiated transformation scheme of power secondary equipment
  • Method for selecting differentiated transformation scheme of power secondary equipment

Examples

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Embodiment

[0053] Example: Carry out secondary equipment differential transformation for a 220kV substation in Jiangsu. First, according to the actual problems and needs of the substation, the elements contained in the target problem of hierarchical analysis are selected, and the elements with dominant logical relationship are summarized and hierarchical, and then a hierarchical model for the evaluation of differentiated transformation schemes is constructed. Then, set up a three-person evaluation expert group, from the substation owner, secondary equipment manufacturer and design institute respectively, and the expert empowerment is 0.4, 0.3, 0.3 respectively. Finally, follow the steps described to evaluate the retrofit proposal. In order to simplify the expression, only the calculation process of the weight vector among the factors of the criterion layer is given, and the evaluation and weight determination steps of the elements of the criterion layer are the same for the second-level ...

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Abstract

The invention discloses a method for selecting a differentiated transformation scheme of power secondary equipment. An analytic hierarchy process structure comprising a scheme layer, a criterion layerand a target layer is constructed according to secondary equipment use history information and related specifications and standards, then a calculation model and a quantification method of the indexes are given, and all the indexes are fuzzified by adopting a triangular intuitionistic fuzzy number theory; a fuzzy analytic hierarchy process is improved by defining a new score function, the weightof each index is solved based on a fuzzy number operation rule, and hierarchical sorting is carried out. According to the invention, based on a triangular intuitionistic fuzzy theory, differentiated transformation scheme selection of the power secondary equipment is carried out; compared with other linear evaluation sorting methods, the method has the advantages that the problems of ambiguity of unclear definition and incompleteness of statistical information in the evaluation process are solved, meanwhile, effective information is reserved, the influence of subjective factors is reduced, andthe capacity of a transformer substation for accurate secondary equipment differentiation technical transformation is improved.

Description

technical field [0001] The invention belongs to the field of power grid technical transformation evaluation, and in particular relates to a method for selecting a differentiated transformation scheme for secondary electric power equipment. Background technique [0002] Smart grid is the focus of current power system development, and the number of supporting smart substations continues to increase. With the transformation and upgrading of substations, a large number of substations are approaching or exceeding life expectancy and need to be renovated. In addition to the wearing parts and power modules that can be replaced regularly according to the maintenance plan, the traditional mainstream secondary equipment operation and maintenance and transformation are all carried out according to the plan and the passive "one-size-fits-all" solution for troubleshooting, that is, by replacing the screen cabinet (including the inside of the cabinet) device and terminal block) and the e...

Claims

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Application Information

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IPC IPC(8): G06F17/16G06F17/18G06N7/02G06Q10/06G06Q50/06
CPCG06F17/16G06F17/18G06N7/02G06Q10/06393G06Q50/06
Inventor 黄帅飞周玲崔建双
Owner HOHAI UNIV
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