Power transformer state evaluation method based on rough set-cloud model

A power transformer and state evaluation technology, which is applied in the fields of instruments, electrical digital data processing, calculation, etc., can solve the problem of not reflecting the fuzziness and randomness of state quantities, and the evaluation results are not intuitive, objective, and difficult to accurately evaluate the operation state of power transformers. and other issues to achieve an objective effect of the evaluation results

Inactive Publication Date: 2015-02-04
JIANGMEN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID +1
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Problems solved by technology

However, these methods are relatively subjective in the process of determining the weight, rely on the experience of experts, do not reflect the fuzziness and randomness of the state quantity ...

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  • Power transformer state evaluation method based on rough set-cloud model

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Embodiment Construction

[0021] The solutions of the present invention will be described in detail below in conjunction with the preferred embodiments thereof.

[0022] Such as figure 1 As shown, the method for the state evaluation of the power transformer based on the rough set-cloud model in the present embodiment includes steps:

[0023] Step S101: Collect sample transformer state quantity data information;

[0024] Step S102: Preprocessing the state quantity data by using the cloud model;

[0025] Step S103: use the rough set to calculate the weight of the state quantity;

[0026] Step S104: Determine the state interval score of the state quantity, and calculate the overall score of the power transformer;

[0027] Step S105: Establish a power transformer state score interval cloud model;

[0028] Step S106: Determine the state level of the power transformer according to the overall score of the power transformer and the score interval cloud model.

[0029] Each step in the above solution will...

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Abstract

The invention discloses a power transformer state evaluation method based on a rough set-cloud model. The method comprises the following steps: (1) collecting the state quantity data information of a sample transformer; (2) processing the state quantity data by utilizing a cloud model; (3) calculating the weight of the state quantity by utilizing a rough set; (4) determining a state interval score of the state quantity, and calculating the integral score of the power transformer; (5) establishing a cloud model of the state interval score of the power transformer; and (6) according to the interval score of the power transformer and the cloud model of the cloud model of the state interval score, determining a state level of the power transformer. The power transformer can be subjected to state evaluation, and an evaluation process is reasonable, and a result is visual, accurate and reliable.

Description

technical field [0001] The invention relates to the state evaluation technology of electrical equipment, in particular to a method for evaluating the state of a power transformer based on a rough set-cloud model. technical background [0002] Power transformer is one of the core equipment in the power system. Its good and reliable operation ensures the safety and stability of the power system. Timely and effective grasp of the operating status of the power transformer is of great significance to the operation and maintenance of the power transformer. In order to ensure that the transformer maintains a good operating state and prevent power accidents, it is very important to accurately evaluate the operating state of the transformer. [0003] There are many factors that affect the operation status of power transformers. The status evaluation is a multi-index decision-making problem. The evaluation method mainly focuses on the calculation of the weight coefficient of the trans...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 欧郁强蔡德华闻建中徐平吴垂明杨玺马承志刘天绍李双全舒乃秋彭辉李自品张小龙文志强
Owner JIANGMEN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID
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