Title:
METHOD FOR EVALUATING MECHANICAL STATE OF HIGH-VOLTAGE SHUNT REACTOR ON THE BASIS OF VIBRATION FEATURE
Document Type and Number:
WIPO Patent Application WO/2021/232655
Kind Code:
A1
Abstract:
A method for evaluating a mechanical state of a high-voltage shunt reactor on the basis of a vibration feature, relating to the field of fault diagnosis technology for electrical devices. Said method is based on historical state data and real-time vibration noise signal data of a high-voltage shunt reactor, compares, by means of an LSTM neural network time sequence prediction method, a deviation between a predicted feature value and an actual feature value, measures whether a mechanical defect or fault occurs in the high-voltage shunt reactor, and comprises: S1, acquiring a vibration signal and a noise signal of the high-voltage shunt reactor, and performing data preprocessing; S2, establishing an LSTM neural network model and configuring parameters; S3, using the LSTM neural network to predict a fundamental frequency amplitude value of the signal; and S4, comparing the deviation between the predicted feature value and the actual feature value, etc, and using a comprehensive deviation factor to evaluate the mechanical operation state of the high-voltage shunt reactor.
Inventors:
GAO SHUGUO (CN)
MENG LINGMING (CN)
ZENG SIMING (CN)
FAN HUI (CN)
ZANG QIAN (CN)
JIA BOYAN (CN)
JI SHENGCHANG (CN)
LIU HONGLIANG (CN)
SUN LU (CN)
XING CHAO (CN)
ZHAO JUN (CN)
MENG LINGMING (CN)
ZENG SIMING (CN)
FAN HUI (CN)
ZANG QIAN (CN)
JIA BOYAN (CN)
JI SHENGCHANG (CN)
LIU HONGLIANG (CN)
SUN LU (CN)
XING CHAO (CN)
ZHAO JUN (CN)
Application Number:
PCT/CN2020/118210
Publication Date:
November 25, 2021
Filing Date:
September 27, 2020
Export Citation:
Assignee:
STATE GRID HEBEI ELECTRIC POWER RES INSTITUTE (CN)
STATE GRID CORP CHINA (CN)
UNIV XI AN JIAOTONG (CN)
STATE GRID CORP CHINA (CN)
UNIV XI AN JIAOTONG (CN)
International Classes:
G01M7/02; G01M13/04; G01N29/00; G01R31/12; G06N3/04
Domestic Patent References:
| WO2015076435A1 | 2015-05-28 |
Foreign References:
| CN111638028A | 2020-09-08 | |||
| CN110361207A | 2019-10-22 | |||
| CN110175425A | 2019-08-27 | |||
| CN108303253A | 2018-07-20 | |||
| CN110534118A | 2019-12-03 | |||
| CN110210516A | 2019-09-06 | |||
| CN110956154A | 2020-04-03 | |||
| CN110702418A | 2020-01-17 | |||
| KR101409986B1 | 2014-06-20 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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