发明名称 |
Method and device for detecting failure of excitation circuit of polyphase alternator |
摘要 |
The method of detecting the failure of the excitation circuit of a polyphase alternator controlled by a regulator comprises the following steps: a) electrical information (Iexc) is continuously taken from the excitation circuit (1); b) the electrical information taken in step a) is continuously compared with a predetermined threshold value (Iref); c) a logic state (LT) is continuously determined according to the result of the comparison made in step b); and d) if the logic state (LT) determined in step c) persists for a time at least equal to a predetermined delay time (6), an electrical continuity fault of said excitation circuit is signalled. This method is particularly suitable for machines having a rotor equipped with permanent magnets or having a high remanence of the magnetic circuit of the rotor. |
申请公布号 |
US8618829(B2) |
申请公布日期 |
2013.12.31 |
申请号 |
US20070515666 |
申请日期 |
2007.11.27 |
申请人 |
PIERRET JEAN-MARIE;MASSON PHILIPPE;VALEO EQUIPEMENTS ELECTRIQUES MOTEUR |
发明人 |
PIERRET JEAN-MARIE;MASSON PHILIPPE |
分类号 |
G01R31/34 |
主分类号 |
G01R31/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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