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Optical intelligent positioning method and device for partial discharge source

An optical positioning and discharge source technology, which is applied in the direction of using optical methods for testing, measuring devices, measuring electricity, etc., can solve the problems of redundant features, many input features, and inaccurate positioning, and achieve dimensionality reduction, precise positioning, and better The effect of positioning effect

Pending Publication Date: 2022-04-29
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO
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Problems solved by technology

The algorithm in this patent has too many input features without dimensionality reduction, resulting in feature redundancy, and the final positioning is still not accurate enough

Method used

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  • Optical intelligent positioning method and device for partial discharge source
  • Optical intelligent positioning method and device for partial discharge source
  • Optical intelligent positioning method and device for partial discharge source

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Embodiment Construction

[0055] Partial discharge is an important symptom and manifestation of equipment insulation defects. Online monitoring of GIL partial discharge in advance can detect insulation defects in GIL in advance and ensure the safe and stable operation of equipment. At present, as an effective partial discharge detection method, the optical detection of partial discharge has a good research and application prospect. Aiming at the problem that the traditional photometric method is difficult to collect a large amount of field test data, the present invention proposes a partial discharge location algorithm based on simulated fingerprints. The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0056] At present, there are relatively few studies on the use of optical signals for PD localization. The present invention studies a partial discharge location method using simulated fingerprints on the basis of photometry to detect pa...

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Abstract

In order to overcome the problems existing in the prior art, the invention provides a partial discharge source optical positioning method and device, and accurate positioning of a partial discharge source in a GIL is achieved. In order to achieve the purpose, the optical positioning method for the partial discharge source comprises the following steps: building a GIL experiment detection platform; constructing a GIL partial discharge simulation model in a GIL experiment detection platform, and analyzing optical signal propagation characteristics; constructing an optical simulation fingerprint data carrying out data processing on the light irradiance collected by the detection point to obtain the optical simulation fingerprint database; and carrying out matching training on the constructed ReliefF-ANFIS model by using an optical simulation fingerprint database, carrying out mode matching on a partial discharge optical fingerprint acquired by an experiment and data in the partial discharge optical simulation fingerprint database, and determining an actual position of a partial discharge source in the GIL. According to the features selected in this way, the phenomenon of feature redundancy caused by too many algorithm input features under the condition that a traditional algorithm is not subjected to dimensionality reduction is avoided.

Description

technical field [0001] The invention belongs to the technical field of optical positioning, in particular to an optical intelligent positioning method and device for a partial discharge source. Background technique [0002] Gas insulated metal-enclosed transmission lines (GIL) is a kind of high-voltage, high-current power transmission equipment that adopts gas insulation, metal casing and conductor coaxial arrangement. As a high-voltage and high-current transmission equipment, GIL has been more and more widely used in power grids. Since the GIL adopts a fully enclosed structure, and has a high voltage level, the transmission capacity is large. Therefore, when it breaks down, the scope of influence is large, the maintenance time is long, and the consequences are very serious. Partial discharge is an important symptom and manifestation of equipment insulation defects. Online monitoring of GIL partial discharge in advance can detect insulation defects in GIL in advance and en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G06F30/27G06F17/15
CPCG01R31/1218G01R31/1227G06F30/27G06F17/15
Inventor 盛骏陈文通钱肖虞驰吴雪峰刘乃杰方玉群范旭明杨怀仁黄晓峰赵新语王颖剑吴胥阳汪卫国金慧波赵凯美方凯陈亢王翊之洪亮
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO
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