Title:
ガスタービンプラントおよびガスタービンプラントの制御方法
Document Type and Number:
Japanese Patent JP4317651
Kind Code:
B2
Abstract:
A gas turbine plant for limiting a sudden increase of load of the gas turbine, i.e., of the amount of fuel, and suppressing a stress of the turbine, or for maintaining a suitable fuel-air ratio is disclosed. The plant includes a controller comprising a section for calculating a governor signal for controlling the degree of opening of the fuel valve, based on a revolution speed of the gas turbine; and a section for calculating a load-limiting signal for following the governor signal, wherein when the governor signal decreases, the load-limiting signal is larger than it by a predetermined value, while when the governor signal increases, the increase rate of the load-limiting signal has a predetermined upper limit. The controller also comprises a limiting section, into which both signals are input, for limiting the upper value of the governor signal by using the load-limiting signal as an upper limit.
Inventors:
Seiichi Nagata
Hiroya Kakuyama
Hiroya Kakuyama
Application Number:
JP2000220814A
Publication Date:
August 19, 2009
Filing Date:
July 21, 2000
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F01D17/00; F01K23/10; F02C9/28; F02C6/18; F02C9/18; F02C9/52
Domestic Patent References:
| JP4214933A | ||||
| JP11324726A | ||||
| JP1116205A |
Attorney, Agent or Firm:
Noriharu Fujita
Shigemitsu Tanaka
Shigemitsu Tanaka