Turbine apparatus and governor for turbine
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United States of America Patent
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-
Jul 4, 2006
Grant Date -
Dec 1, 2005
app pub date -
May 31, 2005
filing date -
Oct 4, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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