Systems and methods concerning exciterless synchronous machines
US9813004B2 · kind B2 · utility
5Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.