TRANSFORMER HEALTH STATE ASSESSMENT METHOD, APPARATUS, AND DEVICE, AND READABLE STORAGE MEDIUM - ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID

Title:

TRANSFORMER HEALTH STATE ASSESSMENT METHOD, APPARATUS, AND DEVICE, AND READABLE STORAGE MEDIUM

Document Type and Number:

WIPO Patent Application WO/2024/000764

Kind Code:

A1

Abstract:

A transformer health state assessment method, apparatus, and device, and a readable storage medium. The method comprises: acquiring, in real time, a one-dimensional time domain vibration signal of a transformer to be tested (S101); converting the one-dimensional time domain vibration signal of the transformer to be tested into a first two-dimensional time-frequency domain distribution map (S102); preprocessing the first two-dimensional time-frequency domain distribution map to obtain a target two-dimensional time-frequency domain distribution map (S103); and inputting the target two-dimensional time-frequency domain distribution map into a preset multi-channel prediction model for prediction, so as to obtain a health state of the transformer to be tested (S104). When the transformer starts aging, the vibration signal of the transformer generally shows a non-stationary characteristic, and all degradation information of the transformer cannot be extracted only by means of time domain analysis, however, the preset multi-channel prediction model is used for analyzing the two-dimensional time-frequency domain distribution map of the transformer to be tested, so that the health state of the transformer to be tested can be acquired. Therefore, the operation and maintenance level and the maintenance efficiency of the transformer can be improved, and the fault probability of the transformer is reduced.

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Inventors:

KE QINGPAI (CN)
SHI XUNTAO (CN)
YU LEI (CN)
LI KAIRAN (CN)
YUAN ZHIYONG (CN)
LEI JINYONG (CN)
XIE HONG (CN)
HU RAN (CN)
LI BING (CN)
OU MINGYU (CN)
XIANG ENXIN (CN)
BAI HAO (CN)
XU MIN (CN)

Application Number:

PCT/CN2022/114091

Publication Date:

January 04, 2024

Filing Date:

August 23, 2022

Export Citation:

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Assignee:

ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID (CN)
SHENZHEN POWER SUPPLY CO LTD (CN)

International Classes:

G06Q10/04; G06N3/04; G06N3/08; G06Q10/00; G06Q50/06

Domestic Patent References:

WO2021107342A1

2021-06-03

Foreign References:

CN113591792A	2021-11-02
CN111767675A	2020-10-13
CN113268924A	2021-08-17
CN114169245A	2022-03-11
CN114462508A	2022-05-10

Attorney, Agent or Firm:

UNITALEN ATTORNEYS AT LAW (CN)

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