Invention Grant
US08692572B2 Method of detecting a fault in a permanent-magnet alternator and power supply device comprising a detector module
有权
检测永久磁铁交流发电机故障的方法和包括检测器模块的电源装置
- Patent Title: Method of detecting a fault in a permanent-magnet alternator and power supply device comprising a detector module
- Patent Title (中): 检测永久磁铁交流发电机故障的方法和包括检测器模块的电源装置
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Application No.: US13809842Application Date: 2011-07-18
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Publication No.: US08692572B2Publication Date: 2014-04-08
- Inventor: Virginie Erdos , Thanh-Tuan Truong , Mehdi Dallagi
- Applicant: Virginie Erdos , Thanh-Tuan Truong , Mehdi Dallagi
- Applicant Address: FR Paris
- Assignee: Sagem Defense Securite
- Current Assignee: Sagem Defense Securite
- Current Assignee Address: FR Paris
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: FR1055871 20100719
- International Application: PCT/EP2011/062250 WO 20110718
- International Announcement: WO2012/010557 WO 20120126
- Main IPC: G01R31/34
- IPC: G01R31/34
Abstract:
A method of detecting a failure of an alternator supplying three-phase electricity to a load, the method comprising the steps of determining a duty ratio for each of the phases at the output of the alternator, determining phase differences between the phases at the output of the alternator; and determining the presence of a failure as a function of the phase differences and as a function of a comparison of the duty ratios. A power supply device is also provided for implementing the method.
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