Title:
GENERATOR IRON CORE FAULT DETECTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/027003
Kind Code:
A1
Abstract:
Disclosed in the present invention are a generator iron core fault detection method and system, for determining whether a fault is present at a suspected fault point of a generator iron core. The method comprises: performing local magnetic circuit setting on a suspected fault point, and building a test magnetic circuit; performing excitation processing on the test magnetic circuit, to make the test magnetic circuit enter a predetermined saturated state for a preset duration; and collecting thermal imaging information of the test magnetic circuit, and generating a fault determination result according to the thermal imaging information. Compared with a conventional iron loss method, implementing the present invention can greatly reduce the power required by a test power supply, which can be easily met in a nuclear power plant, without the need to transport a large quantity of heavy test devices. Moreover, the method is simple and efficient, whether an iron core has a fault point can be accurately determined, and the iron loss test duration, workload and cost are effectively reduced.
Inventors:
WANG JIANTAO (CN)
Application Number:
PCT/CN2022/122323
Publication Date:
February 08, 2024
Filing Date:
September 28, 2022
Export Citation:
Assignee:
CHINA NUCLEAR POWER OPERATIONS CO LTD (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
International Classes:
G01J5/48; G01R31/34; G01R19/00
Foreign References:
| CN106404900A | 2017-02-15 | |||
| CN109324085A | 2019-02-12 | |||
| CN207780118U | 2018-08-28 | |||
| CN103430017A | 2013-12-04 | |||
| CN1759325A | 2006-04-12 | |||
| DE102020106482B3 | 2021-08-26 | |||
| US6489781B1 | 2002-12-03 |
Other References:
HU GUOLI, ZHAO NAIKUAN DANGYU: "Discussion on Iron Loss Test of Motor Stator", GANSU KEJI ZONGHENG - SCIENTIFIC & TECHNICAL INFORMATION OF GANSU, GANSU KEJI ZONGHENG ZAZHISHE, CN, vol. 46, no. 2, 25 February 2017 (2017-02-25), CN , pages 35 - 37, XP093135064, ISSN: 1672-6375, DOI: 10.3969/j.issn.1672-6375.2017.02.011
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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