| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine control valve control device capable of avoiding a resonance phenomenon or an excess hydraulic pressure pulsation in a high pressure oil line caused by control signal fluctuation of a turbine control valve without damaging the response speed of the turbine control valve. SOLUTION: When a high frequency component included in an opening requirement signal of the turbine control valve is determined as being equal to or more than a prescribed value by a high frequency component determination means 41 and generator output is determined as being equal to or more than a prescribed value by a generator output determination means 27, an output switch means 42 selects the opening requirement signal of the turbine control valve passing through a band pass filter 22, and selects the opening requirement signal of the turbine control valve not passing though the band pass filter 22 at a time other than this, and outputs it to a control means 43. The control means 43 drives the opening of the turbine control valve based on the opening requirement signal of the turbine control valve selected by the output switch means 42. COPYRIGHT: (C)2009,JPO&INPIT
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