Power station with grid frequency linked turbine and method for operating
US8247919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2010 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A combined-cycle power plant (10) has at least one power train (60) including a steam turbine (24) and a second generator (8) directly driven by the steam turbine (24) and generating alternating current, the output of which generator is connected to a power grid (21) having a given grid frequency (F), and at least one power train (11) of a gas turbine (12) and a first generator (18) driven directly by the gas turbine (12) and generating alternating current with an operating frequency, the output of which generator is connected to a power grid (21) having a predetermined grid frequency. An electronic decoupling device or a variable electronic gear unit (27) decouples the operating frequency from the grid frequency and is arranged between the first generator (18) and the power grid (21). Such a plant allows both flexible steady-state operation with high overall efficiency as well as flexible transient operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.