System and method employing a digital computer for automatically

Details System and method employing a digital computer for automatically System and method employing a digital computer for automatically

1972-07-31

1985-08-20

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Engine control

415 17, 307 87, 364494, 364495, H02P 904

Patent

active

045361266

ABSTRACT:
A gas turbine power plant is provided with an industrial gas turbine which drives a rotating brushless exciter generator coupled to a power system through a breaker. One or more of the turbine-generator plants are operated by a hybrid digital computer control system during sequenced startup, synchronizing, load, and shutdown operations. The program system for the computer and external analog circuitry operate in a multiple gas turbine control loop arrangement. Automatic synchronization is achieved with a hybrid subsystem which includes the programmed computer and external phase detection circuitry. An automatic synchronization program for the computer is divided into rough speed and voltage matching, fine speed matching and breaker closure subprograms.

REFERENCES:
patent: 3235743 (1966-02-01), Ryerson et al.
patent: 3325650 (1967-06-01), Barnes
patent: 3491248 (1970-01-01), Beckwith et al.
patent: 3552872 (1969-04-01), Giras et al.
patent: 3569785 (1971-03-01), Durbeck
patent: 3599007 (1981-08-01), Martin
patent: 3709626 (1973-01-01), Eggenberger

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