10kV cable line state evaluation method

A cable line and state assessment technology, applied in complex mathematical operations, instruments, data processing applications, etc., can solve problems such as lack of reliability research, and achieve a comprehensive effect of reliability assessment

Active Publication Date: 2019-04-19
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in terms of reliability research of 10kV cable lines, it mainly focuses on fault diagnosis and state evaluation, and there is a relative lack of research on reliability.

Method used

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  • 10kV cable line state evaluation method
  • 10kV cable line state evaluation method
  • 10kV cable line state evaluation method

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Embodiment Construction

[0025] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0026] Such as figure 1 As shown, a 10kV cable line status evaluation method, which includes the following steps:

[0027] S1. For a 10kV cable line, establish a full-state model according to its possible states during use. For 10kV cable lines, the states that may appear during use include available states and unavailable states; the available states are operating states, and the u...

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Abstract

The invention provides a 10kV cable line state evaluation method. A 10kV cable line state assessment method comprises the following steps that S1, for a 10kV cable line, a full-state model is established according to the possible state of the 10kV cable line in the using process of the 10kV cable line; S2, on the basis of the full-state model obtained in the step S1, a Markov principle is appliedto obtain a state transition model of the 10kV cable line; S3, obtaining a state probability matrix and a state transition density matrix of the 10kV cable line based on the state transition model obtained in the step S2; And S4, based on the state probability matrix and the state transition density matrix obtained in the step S3, solving a linear algebraic equation set to obtain the probability of the 10kV cable line in each state. According to the method, transfer between cable line states is considered, so that reliability assessment is more comprehensive and accurate.

Description

technical field [0001] The invention relates to the technical field of power grid reliability, and more specifically, to a method for evaluating the state of a 10kV cable line. Background technique [0002] The 10kV cable line is an important electrical equipment in the distribution network system, and it is one of the decisive factors to ensure the reliable transmission of electric energy. At present, in terms of reliability research of 10kV cable lines, the main focus is on fault diagnosis and status evaluation, and the research on reliability is relatively lacking. Contents of the invention [0003] In order to overcome at least one defect in the prior art, the present invention provides a 10kV cable circuit status evaluation method. The method of the invention considers the transfer between the states of the cable line, so that the reliability evaluation is more comprehensive and accurate. [0004] In order to solve the above technical problems, the technical solutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10G06Q10/06G06Q50/06
CPCG06F17/10G06Q10/0635G06Q50/06Y04S10/50
Inventor 吴炬卓
Owner GUANGDONG POWER GRID CO LTD
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