Adjustable speed gas turbine power generation apparatus and its

Prime-mover dynamo plants – Turbogenerators

Patent

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Details

290 40C, 60 3924, 60 39182, F02C 7057, F02C 618, H02K 718, H02P 914

Patent

active

056751885

ABSTRACT:
An adjustable speed gas turbine power generation apparatus can maintain a rated output of the gas turbine generation apparatus irrespective of ambient temperature change. For this purpose, the rotational speed of the secondary winding of the generator is controlled by the gas turbine and alternating current excitation of the secondary winding is determined on the basis of the ambient temperature. The sucked air quantity (flow rate by weight) in the compressor can be increased by increasing the rotational speed of the gas turbine when the ambient temperature increases, so that an output from the gas turbine becomes nearly the rated output, while maintaining the desired frequency at the primary winding.

REFERENCES:
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patent: 2558592 (1951-06-01), Starkey et al.
patent: 2854617 (1958-09-01), Johnson
patent: 4015187 (1977-03-01), Sasaki et al.
patent: 4399651 (1983-08-01), Geary, Jr. et al.
patent: 4452048 (1984-06-01), Geary, Jr. et al.
patent: 4994684 (1991-02-01), Lauw et al.

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