A method for evaluating the state of multi-dimensional power transmission equipment

A power transmission equipment, multi-dimensional technology, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of ambiguity of state quantities, insufficient consideration of uncertainty, etc.

Active Publication Date: 2018-03-09
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

At present, the cumulative deduction method is used as the primary evaluation method in the transmission equipment evaluation guidelines, industry standards and other relevant normative documents of the State Grid and China Southern Power Grid. The classification is more fine-grained, which is convenient for digital management, but the standard does not consider the absolute, the ambiguity and uncertainty of the state quantity

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  • A method for evaluating the state of multi-dimensional power transmission equipment
  • A method for evaluating the state of multi-dimensional power transmission equipment
  • A method for evaluating the state of multi-dimensional power transmission equipment

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Embodiment Construction

[0150] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0151] According to the multi-dimensional evaluation method of the present invention, the status evaluation of the 500kV transmission line Guishan Line A under the China Southern Power Grid is carried out, and the results of the multi-dimensional status evaluation are verified in combination with actual operating conditions. Some inspection records of this section of the transmission line are shown in Table 5:

[0152] Table 5 Inspection records of transmission lines

[0153]

[0154] The state evaluation parameter system of this section transmission line is as shown in table 1, and its state comment set is V={good, general, attention, serious}, the state evaluation process of this transmission line according to the state evaluation method of the present invention is as follows:

[0155] 1. Calculate the score value of the sub-components

[0156]...

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Abstract

The present invention first establishes a state evaluation model of power transmission equipment with a multi-layer structure, and establishes a special evaluation time period and a special line section. Then, the cumulative deduction method is used as the basic scoring method for each parameter in the evaluation model, and the actual weight and actual deduction value of each parameter are given in combination with the evaluation period and evaluation section. Finally, according to the parameter score value, the score value of each sub-component, tower section, and whole of the power transmission equipment is calculated in turn, and the overall status of the power transmission equipment is comprehensively judged by combining the two dimensions of the evaluation period and the evaluation section. The present invention integrates information of three dimensions of line score, time and space, and the state evaluation method is comprehensive and expandable, and the final multi-dimensional evaluation conclusion is close to the real operating state of the power transmission equipment.

Description

technical field [0001] The invention relates to a method for evaluating the status of multi-dimensional power transmission equipment. Background technique [0002] The safety of power transmission equipment is the basis for safe, reliable and stable operation of the power grid. Effective and accurate assessment, diagnosis and prediction of equipment status will not only directly affect subsequent risk assessment and maintenance decisions, but also improve power supply reliability and power grid operation. An important way to the level of intelligence. [0003] Due to the wide distribution area of ​​power transmission equipment, numerous sub-components, and the large impact of natural environment, the state evaluation of power transmission equipment faces the difficulty of comprehensiveness and accuracy. To conduct a comprehensive and accurate state assessment, it is necessary to integrate multi-source heterogeneous information such as equipment state information, power grid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 严英杰刘亚东罗林根李卫胜王彦良刘柯宏盛戈皞江秀臣
Owner SHANGHAI JIAO TONG UNIV
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