Method for detecting a failure in a three-phase alternator, device for detecting failures and associated computer programme
The invention concerns a method for detecting a failure in a three-phase alternator connected to a three-phase rectifier bridge. The method comprises the following steps - rectifying (70) the voltages generated by the three-phase alternator; - adding (76) the rectified voltages taken at the first an...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention concerns a method for detecting a failure in a three-phase alternator connected to a three-phase rectifier bridge. The method comprises the following steps - rectifying (70) the voltages generated by the three-phase alternator; - adding (76) the rectified voltages taken at the first and second phases in order to obtain a voltage sum; - subtracting (78), from said voltage sum, twice the rectified voltage taken at the third phase, in order to obtain a voltage difference; - comparing (80) the voltage difference to a high threshold and a low threshold; - detecting (82) a failure when the voltage difference is less than said low threshold or when the voltage difference is greater than said high threshold. The invention also concerns a device for detecting failures and an associated computer programme. |
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