Turbine apparatus and governor for turbine

Details Turbine apparatus and governor for turbine Turbine apparatus and governor for turbine

2006-08-15

2006-08-15

Patel, Ramesh (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C700S170000, C700S287000, C700S289000, C700S290000, C415S052100, C415S053100, C415S055100, C415S080000, C323S304000, C323S318000, C318S798000, C318S799000

Reexamination Certificate

active

07092795

ABSTRACT:
In a turbine apparatus comprising a runner rotatable to be rotationally driven by a water, a gain of a derivative calculation element generating a derivative component of a control signal for controlling a flow rate of the water which derivative component is to be applied to the derivative calculation element and the integration calculation element by performing differentiation on a difference between an actual rotational speed and a desired rotational speed of the runner with respect to a time proceeding has a value sufficiently increased to converge a value of the control signal toward a desired value in accordance with the time proceeding in S-characteristic portion.

REFERENCES:
patent: 4625125 (1986-11-01), Kuwabara
patent: 4754156 (1988-06-01), Shiozaki et al.
patent: 5090872 (1992-02-01), Kuwabara et al.
patent: 5561358 (1996-10-01), Kuwabara et al.
patent: 6250887 (2001-06-01), Kuwabara et al.
patent: 6846154 (2005-01-01), Kuwabara
patent: 2002-303244 (2002-10-01), None

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