Method of synchronizing a turbomachine generator to an electric grid
US7915868B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Dec 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present invention may seek to match the generator and grid voltages before the powerplant machine reaches the grid matching speed during the start-up process. An embodiment of the present invention may provide a predictive algorithm, or the like, to control the acceleration rate of the powerplant machine to target a particular phase angle differential between the powerplant machine and the grid when the powerplant machine reaches the grid matching speed. Here, the phase angle difference may be targeted such that a generator breaker may be closed immediately after the powerplant machine accelerates beyond the grid matching speed. This may avoid the generator experiencing a phase angle differential, which may add to the power transient associated with the generator breaker closure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.