초록 ▼

A boiler/turbine plant controlling apparatus comprises a circuit for driving a turbine inlet steam flow regulator valve on the basis of a difference between a load command signal adjusted by a thermal stress value of a turbine and an actually measured output signal of a plant; a circuit for driving

A boiler/turbine plant controlling apparatus comprises a circuit for driving a turbine inlet steam flow regulator valve on the basis of a difference between a load command signal adjusted by a thermal stress value of a turbine and an actually measured output signal of a plant; a circuit for driving a boiler feed water flow regulator valve on the basis of a difference between a value which is obtained by adding a boiler feed water amount with a super heater feed water amount and a value represented by a boiler input command signal; a circuit for driving a fuel flow regulator valve in accordance with an actually measured fuel amount and a fuel command signal corrected by a difference signal between a primary steam temperature setting signal and a steam temperature signal representative of a primary steam temperature measured value; a circuit for driving a super heater water feed valve on the basis of a difference value between the primary steam temperature setting signal and the steam temperature signal; a circuit for calculating a steam temperature drop through the steam flow regulator valve on the basis of an opening degree of the steam flow regulator valve disposed at an inlet of the turbine and a temperature and pressure of steam at the inlet of said steam flow regulator valve; and a circuit for correcting the steam temperature setting signal on the basis of the calculated value of the calculating means.

대표청구항 ▼

A boiler/turbine plant controlling apparatus comprising: means for driving a turbine inlet steam flow regulator valve on the basis of a difference between a load command signal and an actually measured output signal of a plant; means for driving a boiler feed water flow regulator valve on the basis

A boiler/turbine plant controlling apparatus comprising: means for driving a turbine inlet steam flow regulator valve on the basis of a difference between a load command signal and an actually measured output signal of a plant; means for driving a boiler feed water flow regulator valve on the basis of a difference between a value which is obtained by adding a boiler feed water amount with a super heater feed water amount and a value represented by a boiler input command signal; means for driving a fuel flow regulator valve in accordance with an actually measured fuel amount and a fuel command signal corrected by a difference between a primary steam temperature setting signal and a steam temperature signal representative of a primary steam temperature measured value; and means for driving a super heater water feed valve on the basis of a difference between the primary steam temperature setting value and the steam temperature signal representative of the primary steam temperature measured value; wherein the improvement comprises: means for calculating a steam temperature drop between an inlet of said steam flow regulator valve disposed at an inlet of the steam turbine and an inlet of a blade row of said steam turbine on the basis of an opening degree of said steam regulator valve and a temperature and a pressure of steam at the inlet of said steam flow regulator valve; and means for correcting said primary steam temperature setting value on the basis of the calculated value of said calculating means.