Electric machine fault detection scheme
US11509255B2 · kind B2 · utility
0Cited by
6References
8Claims
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Key dates
| Filing date | Sep 1, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Sep 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0805
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A short circuit detection system and method that identifies a short circuit between turns of a winding of a permanent magnet machine having a three-phase winding in response to detection of imbalances between the three motor phases at an instant in time. The imbalances are identified by monitoring motor terminal voltages and currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.