Systems and methods for crack detection in doubly-fed induction generators
US10184985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Dec 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fault detection system for a wind turbine includes a doubly-fed induction generator (DFIG). The DFIG includes a wye-ring configured for at least three electrical phases. The fault detection system includes a data acquisition system including at least three sensors. Each sensor of said at least three sensors is configured to electrically couple with and measure a respective voltage of each phase of the at least three electrical phases of the wye-ring. The fault detection system further includes an alert system coupled to said data acquisition system. The alert system is configured to apply a Fourier transform to the respective measured voltages of each phase of the at least three electrical phases of the wye-ring. The alert system is further configured to provide an indication of a condition of the wye-ring based upon the transformed measured voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.