Speed governor for a hydroelectric unit

Details Speed governor for a hydroelectric unit Speed governor for a hydroelectric unit

1980-03-14

1981-10-27

Miller, J. D.

Prime-mover dynamo plants

Electric control

Engine control

415 30, F01D 1702

Patent

active

042975891

ABSTRACT:
A speed governor for a hydroelectric unit includes an error sensing means, an integrator and a gate opening control means connected to the output of the integrator for controlling the degree of opening of the turbine gate apparatus. The governor further comprises a limiter connected between the output of the error sensing means and the input of the integrator for limiting the maximum value of the integrator input signal to a limit value equal to the minimum integrator input signal value which insures the maximum permissible rate of change of the degree of opening of the gate apparatus.

REFERENCES:
patent: 3201675 (1965-08-01), Curran et al.
patent: 3834830 (1974-09-01), Johncock

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