Title:
ONLINE MONITORING METHOD FOR CONTACT RESISTANCE OF GCB OF LARGE GENERATOR, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/246455
Kind Code:
A1
Abstract:
An online monitoring method and apparatus for contact resistance of a GCB of a large generator, and an electronic device, a readable storage medium, a computer program product and a computer program. The method comprises: step S1, acquiring a real-time load current of a GCB, a size parameter of an SF6 gas cooler, a real-time temperature of the SF6 gas cooler, a temperature change amount of an SF6 gas, and a real-time temperature of the GCB; step S2, determining a heat dissipation amount of the SF6 gas cooler according to the size parameter of the SF6 gas cooler and the real-time temperature of the SF6 gas cooler, calculating a heat dissipation amount of a generator contact according to the real-time temperature of the GCB, and calculating heat absorption work of the gas according to the temperature change amount of the SF6 gas; and step S3, calculating the contact resistance according to the real-time load current of the GCB, the heat dissipation amount of the SF6 gas cooler, the heat dissipation amount of the generator contact, and the heat absorption work of the gas.
Inventors:
HUANG XIANSHENG (CN)
ZHANG DEXUAN (CN)
ZENG XUEWEN (CN)
ZHANG QILIANG (CN)
YANG WUZIYUE (CN)
QI LINHUA (CN)
FAN DAOZHI (CN)
YOU XIANGRUI (CN)
ZHOU KAI (CN)
YANG WENJING (CN)
ZHANG DEXUAN (CN)
ZENG XUEWEN (CN)
ZHANG QILIANG (CN)
YANG WUZIYUE (CN)
QI LINHUA (CN)
FAN DAOZHI (CN)
YOU XIANGRUI (CN)
ZHOU KAI (CN)
YANG WENJING (CN)
Application Number:
PCT/CN2023/097536
Publication Date:
December 28, 2023
Filing Date:
May 31, 2023
Export Citation:
Assignee:
HUANENG LONGKAIKOU HYDROPOWER CO LTD (CN)
International Classes:
G01R27/02; G01R31/327; H01H71/04
Foreign References:
| CN115078842A | 2022-09-20 | |||
| CN109188267A | 2019-01-11 | |||
| CN112363050A | 2021-02-12 | |||
| CN112380653A | 2021-02-19 | |||
| CN114019359A | 2022-02-08 | |||
| DE102016223548A1 | 2017-12-21 | |||
| JP2002354618A | 2002-12-06 | |||
| KR20210126251A | 2021-10-20 | |||
| US20200119625A1 | 2020-04-16 |
Other References:
李杨 (LI, YANG): "开关柜触头温度与接触电阻间接测算及测温系统的研发 (Non-official translation: Research on Indirect Measurement and Calculation of Contact Temperature of Switchgears and Contact Resistance, and Development of Temperature Measurement System)", 中国优秀硕士学位论文全文数据库工程科技Ⅱ辑 (ENGINEERING SCIENCE & TECHNOLOGY II, CHINA MASTER’S THESES FULL-TEXT DATABASE), no. 01, 15 January 2022 (2022-01-15), ISSN: 1674-0246
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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