Self-diagnostics within power electronics
US8896251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3277
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure relates to diagnosing a power electronic device by itself and extending the diagnostics to an electric machine coupled with the power electronic device and deployed at an operational site. The power electronic device can power and control the electric machine. The diagnostics can include testing the status of the power electronic device, and monitoring hardware changes in the electric machine. The diagnostics can be performed within the power electronic device on demand, periodically, or both. In some instances, the self-diagnostics can evaluate whether components are defective or wired incorrectly, characterized by wrong inductance, and/or resistance, for example. In some implementations, the power electronic device includes a digital signal processing unit for the self-diagnostics and a data record system for recording and troubleshooting errors related to load performance and/or parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.