Method for controlling opening degree of turbine valve

摘要

A turbine valve opening control method is provided. ; The turbine valve opening control method includes the steps of: generating an electrical control signal in accordance with an opening degree of a turbine valve in an arithmetic control unit; Outputting an oil pressure proportional to the electric control signal in the electrohydraulic converter; Generating a driving force by rotation of the motor and controlling the opening degree of the turbine valve with an opening proportional to the hydraulic pressure; Measuring an opening displacement of the turbine valve in a displacement meter and converting it into an electrical control signal; Converting the converted electrical control signal into an opening displacement of the turbine valve in the operation control unit; And controlling an opening degree of the turbine valve by adjusting an input / output ratio set to the motor using the control voltage and the control current of the electric control signal, the oil pressure, and the opening displacement. ; According to the present invention as described above, it is possible to precisely control the turbine valve opening degree under the same conditions as the operating conditions in the non-operation state, and to accurately control the opening degree of the turbine valve by controlling the electric control signal (control voltage, control current) The output of the generator can be increased. ; Turbine valve, electric control signal, electrohydraulic converter, displacement meter, control pressure