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Power transformer life assessment method and terminal equipment

A power transformer and life evaluation technology, applied in the field of power transformers, can solve the problems of inaccurate evaluation results and achieve the effect of accurate operational life

Active Publication Date: 2021-03-16
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a power transformer life assessment method and terminal equipment to solve the problem in the prior art that grid planners rely on experience to assess the operational life of power transformers, resulting in inaccurate assessment results

Method used

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  • Power transformer life assessment method and terminal equipment
  • Power transformer life assessment method and terminal equipment
  • Power transformer life assessment method and terminal equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Please refer to figure 1 , the life assessment methods of power transformers include:

[0049] Step S101, determining the economic life of the transformer according to the constructed transformer life cycle cost function.

[0050] In the embodiment of the present invention, the economic life of the transformer is reflected from the economic index of the transformer. In the early stage of transformer operation, the economic index decreases year by year. begin descending. The economic life of the transformer is considered to be reached when the economic index of the transformer appears an inflection point.

[0051]Optionally, step S101 is implemented by adding the initial investment cost of the transformer, the maintenance cost of the transformer, the power failure loss cost of the transformer, and the disposal cost of the transformer to construct a total cost of the transformer. life cycle cost function;

[0052] The operating time of the transformer when the value o...

Embodiment 2

[0106] Such as image 3 As shown, a life evaluation device for a power transformer includes:

[0107] The first determination module 301 is configured to determine the economic life of the transformer according to the constructed transformer life cycle cost function;

[0108] A first obtaining module 302, configured to obtain the economic life cycle cost of the transformer according to the economic life;

[0109] The second determination module 303 is configured to determine the current operating life of the transformer according to the commissioning time of the transformer;

[0110] The second obtaining module 304 is configured to obtain the current operating life cycle cost of the transformer according to the current operating life;

[0111] The third determining module 305 is configured to determine the physical life of the transformer according to the health level index of the transformer and the current operating life;

[0112] A third obtaining module 306, configured ...

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Abstract

The invention is applicable to the technical field of power transformers, and provides a life assessment method for a power transformer and terminal equipment. The method comprises the following steps: acquiring the economic life, economic life cycle cost, current operation life, current operation life cycle cost, physical life and physical life cycle cost of a transformer respectively; and determining the comprehensive life of the transformer according to the economic life, the economic life cycle cost, the current operation life, the current operation life cycle cost, the physical life and the physical life cycle cost in order to obtain a quantifiable index comprehensively reflecting the economic life and the physical life. The determined comprehensive life is the operational life of thetransformer, so that the accurate operational life of the transformer can be obtained.

Description

technical field [0001] The invention belongs to the technical field of power transformers, and in particular relates to a power transformer life evaluation method and terminal equipment. Background technique [0002] Power transformers are important equipment in substations. Reasonable evaluation of the operational life of power transformers is of great significance for guiding the transformation of substation equipment and ensuring the economic and safe operation of power grids. The life of power transformers is usually described from two aspects: physical life and economic life. After the power transformer has been in operation for a certain period of time, as the aging degree increases, its maintenance cost will increase significantly, and its economic indicators will begin to decline. Therefore, the economic life of power transformers is not consistent with the physical life. [0003] At present, although there are many methods to evaluate the economic life and physica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/04
Inventor 王文宾陈岩靳伟李会彬白文广韩胜峰朱燕舞任雨王宁赵辉段浩男岳宇飞史智洁李征谷莹李红巩固孙冰华付学文武贺兴
Owner STATE GRID CORP OF CHINA