Apparatus for automatically controlling the active power produce

Details Apparatus for automatically controlling the active power produce Apparatus for automatically controlling the active power produce

1979-07-30

1981-09-01

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Engine control

290 52, F01D 1510, H02P 904

Patent

active

042874297

ABSTRACT:
An apparatus for automatically controlling the active power produced by the generator of a hydraulic turbine-generator unit, comprising a frequency-responsive summing means having its inputs respectively connected to a reference signal source which develops an assigned power signal, to a power measuring means responsive to the active power produced by the generator, and to a gate opening sensing means responsive to the degree of opening of the hydraulic turbine gate apparatus, and its output connected to a control means for controlling the degree of opening of the gate apparatus. The frequency-responsive summing means is adapted to develop at its output a signal representative of an algebraic sum of the signal applied to its input connected to the reference signal source, the low-frequency components of the signal applied to its input connected to the power measuring means and the high-frequency components of the signal applied to its input connected to the gate opening sensing means.

REFERENCES:
patent: 2605451 (1952-07-01), Ward et al.
patent: 3077557 (1963-02-01), Joline et al.
patent: 3184667 (1965-05-01), Wallace
patent: 3246220 (1966-04-01), Shinners
patent: 3895280 (1975-07-01), Peterson
Electric Governor for Hydraulic Turbines, Woodward Governor Co. Bulletin #07058.

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