Inlet guide vane control device of gas turbine

Details Inlet guide vane control device of gas turbine Inlet guide vane control device of gas turbine

2008-09-09

2008-09-09

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S048000

Reexamination Certificate

active

11360022

ABSTRACT:
An IGV opening command is set based on an IGV opening A set by an exhaust gas temperature control section, an IGV opening B set by a compressor surge protective control section, and an IGV opening C set by an exhaust gas pressure protective control section. The value of the IGV opening A, or the value of the IGV opening B, whichever is higher, is selected, the higher selected value, or the value of the IGV opening C, whichever is lower, is selected, and the lower selected value is set as the IGV opening command (gas turbine back pressure rise avoidance priority mode). Alternatively, the value of the IGV opening A, or the value of the IGV opening C, whichever is lower, is selected, the lower selected value, or the value of the IGV opening B, whichever is higher, is selected, and the higher selected value is set as the IGV opening command (compressor surge avoidance priority mode). Alternatively, a switcher switches between these modes.

REFERENCES:
patent: 7155897 (2007-01-01), Nakamura et al.
patent: 7191588 (2007-03-01), Tanaka et al.
patent: 7234305 (2007-06-01), Nomura et al.
patent: 10-47079 (1998-02-01), None
patent: 2000-045791 (2000-02-01), None
patent: 2003-206749 (2003-07-01), None
Chinese Office Action dated Nov. 16, 2007, Application No. 200610006773.6.

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