A method for evaluating the status of power equipment based on alarm big data information

A technology for power equipment and state assessment, applied in digital data information retrieval, fuzzy logic-based systems, data processing applications, etc., to achieve accurate assessment and avoid procurement and operation and maintenance costs

Active Publication Date: 2022-03-25
成都积盛电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some enterprises and research institutions have gradually carried out research on the condition assessment and condition-based maintenance technology of power system equipment, they mainly focus on installing monitoring devices to obtain scattered alarm information, which will bring cost and safety risks. How to make good use of them? It is particularly critical to carry out data mining on existing alarm big data signals and to use advanced algorithms for scientific and effective evaluation

Method used

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  • A method for evaluating the status of power equipment based on alarm big data information
  • A method for evaluating the status of power equipment based on alarm big data information
  • A method for evaluating the status of power equipment based on alarm big data information

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Embodiment

[0076] figure 1 It is a flow chart of the method for evaluating the status of electric equipment based on alarm big data information in the present invention.

[0077] In this example, if figure 1 As shown in the present invention, a method for evaluating the state of electric equipment based on alarm big data information includes the following steps:

[0078] S1. Based on the alarm big data information, evaluate the influencing factor set of the state of the electric equipment;

[0079] According to the experience of power grid dispatching and monitoring operation, based on the alarm big data information, select five dimensions that have a greater impact on the state of power equipment to establish a set of influencing factors for the evaluation object, namely: alarm information, frequent information, long-term unreturned information, and jitter Information and commissioning time, and at the same time establish six dimensions of the second level in the alarm information: ac...

example

[0170] Based on the alarm big data information of a certain device, the judgment matrix is ​​constructed by using the analytic hierarchy process, and the judgment matrix after each column is normalized is added by row to obtain the judgment matrix shown in Table 9:

[0171]

[0172]

[0173] Table 9

[0174] Normalize the rightmost column vector:

[0175]

[0176] Consistency check:

[0177] Calculate the largest characteristic root λ of the judgment matrix max =5.2866

[0178] Calculation of judgment matrix consistency index

[0179]

[0180] Calculate the random consistency ratio CR

[0181]

[0182] Therefore, it is considered that the judgment matrix satisfies consistency.

[0183] The fuzzy comprehensive evaluation method establishes the fuzzy relationship matrix, assuming that the following matrix is ​​obtained according to a certain equipment data:

[0184]

[0185] Calculate the fuzzy evaluation set, and multiply the weight w calculated by AHP w...

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Abstract

The invention discloses a method for evaluating the state of electric equipment based on alarm big data information, which determines the factors affecting the equipment through the actual operation of the power system, and then uses the analytic hierarchy process (AHP) method to obtain the influence of each state quantity on the state of the equipment. Combining the weights and conducting consistency checks, and then using the fuzzy comprehensive evaluation method to comprehensively analyze and evaluate the state of the equipment on the basis of the combined weights to obtain the evaluation results.

Description

technical field [0001] The invention belongs to the technical field of state evaluation of electric equipment, and more specifically, relates to a state evaluation method of electric equipment based on alarm big data information. Background technique [0002] The power industry has entered the era of large power grids, informatization, digitization and intelligence. The operation level of the power system is directly related to the development of the national economy and national energy security. For a long time, the operation, maintenance and management of power equipment have adopted the method of planned maintenance and after-failure maintenance, which has not met the requirements of safety and development. Although some enterprises and research institutions have gradually carried out research on the condition assessment and condition-based maintenance technology of power system equipment, they mainly focus on installing monitoring devices to obtain scattered alarm inform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F16/2458G06N7/02
CPCG06Q10/0639G06Q50/06G06F16/2465G06N7/02
Inventor 段翔兮黄琦陈哲
Owner 成都积盛电子科技有限公司
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