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Comprehensive evaluation method and system of overall state of transmission cable

A technology for comprehensive evaluation of power transmission cables, applied in instruments, data processing applications, calculations, etc., can solve the problems of lack of unified connection of cable status, lack of evaluation system for cable status maintenance, and imperfect status monitoring technology

Inactive Publication Date: 2014-04-30
GUANGZHOU POWER SUPPLY CO LTD +1
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Problems solved by technology

[0006] However, the state evaluation of the existing high-voltage cross-linked cables is still in the process of exploration and accumulation, and there are the following defects: the state monitoring technology is not perfect, the lack of a unified relationship between the state of the cable and its characteristic parameters, the lack of a complete evaluation system for cable condition maintenance and Maintenance strategy based on equipment status evaluation, and the basis for operation and maintenance guidance needs to be further optimized

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  • Comprehensive evaluation method and system of overall state of transmission cable
  • Comprehensive evaluation method and system of overall state of transmission cable
  • Comprehensive evaluation method and system of overall state of transmission cable

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] image 3 It is a flow chart of the comprehensive evaluation method for the overall state of the transmission cable in the embodiment of the present invention. Such as figure 1 As shown, the comprehensive evaluation method of the overall state of the transmission cable includes the following steps:

[0023] Step 401, determine the evaluation factor set based on the transmission cable, for example, the evaluation factor set U of the transmission cable can be established:

[0024] U={u 1 , u 2 ,...,u m},u i (i=1,2,...,m) represents the i-th influencing factor of the transmission cable status.

[0025] In step 401, establish the transmission cable evaluation factor set U={u 1 , u 2 ,...,u m},u i (i=1,2,...,m) indicates the i-th influencing factor of the project, including:

[0026] Such as figure 1 As shown, before the comprehe...

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Abstract

The invention discloses a comprehensive evaluation method and system of an overall state of a transmission cable. The method comprises the steps of determining an evaluation factor set U, a state set V and a factor and state matrix W based on the transmission cable, establishing a judgment matrix R based on the transmission cable, determining an evaluation factor weight vector A, conducting fuzzy comprehensive operation, and using a maximum membership degree principle to fuzzify to obtain a final result of state evaluation. According to the technical scheme, the respective advantages of fuzzy mathematics and an analytic hierarchy process are combined, and the analytic hierarchy process is used for conducting comprehensive evaluation on the entire state of the transmission cable.

Description

technical field [0001] The invention relates to the technical field of monitoring and evaluating the state of electrical equipment, in particular to a comprehensive evaluation method and system for the overall state of a power transmission cable. Background technique [0002] Long-term operation experience shows that the traditional planned maintenance is no longer suitable for the high reliability requirements of modern power systems. What is currently being developed is condition-based maintenance based on condition monitoring (usually online monitoring) and fault diagnosis. Condition-based maintenance is based on the condition evaluation of equipment. The state evaluation is to evaluate the state of the equipment according to the characteristic parameters of the detected or monitored equipment and according to certain rules. Therefore, the state evaluation of equipment is based on the detection of characteristic parameters that can reflect the state of equipment. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 来立永牛海清罗新吴倩
Owner GUANGZHOU POWER SUPPLY CO LTD
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