Electric machine
US7242166B2 · kind B2 · utility
5Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Nov 18, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/186
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus are described for monitoring a rotating synchronous electric machine (9), which comprises a rotor winding and a stator having a stator winding. The method comprises the steps of determining the stator winding current, determining the stator winding voltage, determining the rotor winding current, and estimating the temperature in at least two positions in the electric machine (9) using a model of the electric machine and the determined current and voltage values. An apparatus according to the invention is provided for carrying out the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.