Turbine speed control system and method
US7194863B2 · kind B2 · utility
30Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87314
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
One embodiment of the invention provides a turbine control system that adjusts the control thresholds of two-position valves, which provide propellant to the turbine, based on turbine load so as to compensate for increased turbine speed overshoot at low load and the increased turbine speed undershoot at high load. These two-position on-off modulated valves are used in a bang-bang (fully open or fully closed) regulation scheme to eliminate or minimize speed droop by using variable speed bounds implemented as a function of load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.