Gas turbine control system

Power plants – Combustion products used as motive fluid – With closed pocket turbine

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07076940

ABSTRACT:
A gas turbine control system is disclosed which operates to stabilize the system frequency in a case of transitional variations of the system frequency without making the strength of hot gas path parts of the gas turbine below a maximum stress value of the hot gas path parts. When a system frequency abnormality is detected, the output of the gas turbine is adjusted to recover the system frequency by making a gas turbine combustion gas temperature control inoperative. For this purpose, there are provided a logical circuit operative to make the gas turbine combustion gas temperature control disabled or inoperative in response to an abnormal system frequency detection signal, and a recovery circuit that operates to cancel the inoperative state of the gas turbine combustion gas temperature control. The detection of an abnormal system frequency may be carried out by an outside signal. An abnormality detection unit may be provided in a combined cycle plant.

REFERENCES:
patent: 3520133 (1970-07-01), Loft et al.
patent: 3638422 (1972-02-01), Loft et al.
patent: 5142860 (1992-09-01), Strange et al.
patent: 8-218897 (1996-08-01), None
“Dynamic Behavior of Combined Cycle Power Plant for Frequency Drop”, The Transactions of the Institute of Electrical Engineers of Japan, vol., 122-B, No. 3, Mar. 1, 2002, pp. 391-400.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gas turbine control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas turbine control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas turbine control system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3590955

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.