Title:
HEALTH CONDITION ASSESSMENT METHOD AND APPARATUS FOR MEDIUM/LOW VOLTAGE SWITCHGEAR
Document Type and Number:
WIPO Patent Application WO/2024/067749
Kind Code:
A1
Abstract:
The present invention provides a health condition assessment method for a medium/low voltage switchgear, the method comprising: according to a main conduction circuit structure of the medium/low voltage switchgear, determining key connection points in the main conduction circuit to serve as virtual temperature measurement points; according to the distribution of the virtual temperature measurement points, establishing a temperature analysis model of the main conduction circuit; obtaining a current value, an environment temperature value, and temperature values which are sensed by the temperature sensors, of the main conduction circuit, and inputting the current value, the environment temperature value, and the temperature values which are sensed by the temperature sensor, of the main conduction circuit, into the temperature analysis model, so as to obtain temperature values of the virtual temperature measurement points in the main conduction circuit; and obtaining temperature limit values of the virtual temperature measurement points in the main conduction circuit, using the temperature limit values to normalize the temperature values, and as ses sing the health condition of the medium/low voltage switchgear according to the normalized temperature values.
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Inventors:
LI JING (CN)
ZHAO SHUANG (CN)
HUA WEN TAO (CN)
LIU HAO (CN)
ZHANG PENG FEI (CN)
WEIBERT JENS (CN)
GUO ZHAO YAN (CN)
ZHAO SHUANG (CN)
HUA WEN TAO (CN)
LIU HAO (CN)
ZHANG PENG FEI (CN)
WEIBERT JENS (CN)
GUO ZHAO YAN (CN)
Application Number:
PCT/CN2023/122283
Publication Date:
April 04, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
SIEMENS LTD CHINA (CN)
International Classes:
G01K1/02; G01K3/00; G01K7/42; G01R31/00; H02B3/00
Foreign References:
| US20210356328A1 | 2021-11-18 |
Other References:
WANG XIAORUI ET AL: "Precise multi-dimensional temperature-rise characterisation of switchgear based on multi-conditional experiments and LPTN model for high-capacity application", HIGH VOLTAGE, vol. 6, no. 1, 31 December 2020 (2020-12-31), Michael Faraday House, Six Hills Way, Stevenage, Herts. SG1 2AY, UK, pages 138 - 148, XP093111952, ISSN: 2397-7264, Retrieved from the Internet [retrieved on 20231213], DOI: 10.1049/hve.2019.0280
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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