Condition monitoring and fault detection in induction motors
US10686394B1 · kind B1 · utility
1Cited by
2References
20Claims
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Key dates
| Filing date | Feb 5, 2020 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Feb 5, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems for real-time, in-service, non-intrusive condition monitoring of turn-to-turn faults (TTFs) of an induction motor stator in a drive system. A time-domain-based signal processing technique, mathematical morphology, can be used for condition monitoring based on the radiated electromagnetic (EM) field from the induction motor. The vector control technique implemented to drive the induction motor can be direct torque control, and the mathematical morphology technique can detect incipient TTFs based on the radiated magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.