Title:
FREQUENCY-DOMAIN-ANALYSIS-BASED MONITORING APPARATUS FOR POWER DISTRIBUTION TERMINAL HOT-PLUGGING MODULE
Document Type and Number:
WIPO Patent Application WO/2023/184948
Kind Code:
A1
Abstract:
A frequency-domain-analysis-based monitoring apparatus for a power distribution terminal hot-plugging module. A magnetoelectric sensing array is arranged in a hot-plugging box (1), and three magnetoelectric sensing elements (41, 42, 43), which have different collection frequency domains, are arranged by means of the magnetoelectric sensing array; magnetic signals, which have central frequencies satisfying the collection frequency domains of the three magnetoelectric sensing elements (41, 42, 43), of functional modules (3) are respectively collected by using the three magnetoelectric sensing elements (41, 42, 43), such that magnetic signals, which have different central frequencies, of the functional module (3) are accurately collected and converted into voltage signals; the voltage signals are amplified and filtered, thereby improving the sensitivity of the voltage signals; and the voltage signals are compared with a preset voltage threshold and a comparison result is obtained, such that whether the corresponding functional modules are abnormal is determined. In this way, the functional modules (3) of a hot-plugging module are monitored online, thereby improving the timeliness of an early warning for a fault occurring in the hot-plugging module, and also improving the operation reliability of a power distribution cabinet.
Inventors:
KUANG CHAOLIAN (CN)
MA CHAO (CN)
LIN XI (CN)
XU WEIBIN (CN)
LAI KUI (CN)
YANG XI (CN)
ZHANG JINTIAN (CN)
CHEN JINHONG (CN)
ZHANG HAOMIN (CN)
WU WEI (CN)
WU FEIFEI (CN)
WU JIANPING (CN)
PAN SONGBO (CN)
HU TAI (CN)
MA CHAO (CN)
LIN XI (CN)
XU WEIBIN (CN)
LAI KUI (CN)
YANG XI (CN)
ZHANG JINTIAN (CN)
CHEN JINHONG (CN)
ZHANG HAOMIN (CN)
WU WEI (CN)
WU FEIFEI (CN)
WU JIANPING (CN)
PAN SONGBO (CN)
HU TAI (CN)
Application Number:
PCT/CN2022/127156
Publication Date:
October 05, 2023
Filing Date:
October 24, 2022
Export Citation:
Assignee:
JIANGMEN POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD (CN)
International Classes:
G01R19/165; G01R31/28; H02N2/00
Foreign References:
| CN114646795A | 2022-06-21 | |||
| CN113655349A | 2021-11-16 | |||
| CN101594074A | 2009-12-02 | |||
| CN101764532A | 2010-06-30 | |||
| CN107885228A | 2018-04-06 | |||
| CN110058080A | 2019-07-26 | |||
| CN105487006A | 2016-04-13 | |||
| US5602709A | 1997-02-11 | |||
| US20200182684A1 | 2020-06-11 | |||
| US20050218729A1 | 2005-10-06 |
Attorney, Agent or Firm:
BEIJING GAOHANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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