Electrical rotating machine control unit and power generation system
US7157804B2 · kind B2 · utility
7Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2006 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Feb 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.