JPS55114834A - Pressure control system of steam turbine for combined-cycle plant - Google Patents

Pressure control system of steam turbine for combined-cycle plant

Info

Publication number
JPS55114834A
JPS55114834A JP2288779A JP2288779A JPS55114834A JP S55114834 A JPS55114834 A JP S55114834A JP 2288779 A JP2288779 A JP 2288779A JP 2288779 A JP2288779 A JP 2288779A JP S55114834 A JPS55114834 A JP S55114834A
Authority
JP
Japan
Prior art keywords
steam turbine
pressure control
regulating valve
control system
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2288779A
Other languages
Japanese (ja)
Other versions
JPS6149488B2 (en
Inventor
Hiroshi Hanaoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2288779A priority Critical patent/JPS55114834A/en
Publication of JPS55114834A publication Critical patent/JPS55114834A/en
Publication of JPS6149488B2 publication Critical patent/JPS6149488B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

PURPOSE: To obtain stabilized pressure control characteristics, by preventing hunting of the regulating valve by setting a function having hysteresis characteristics for the steam turbine load to control the inlet pressure of the regulating valve of the steam turbine.
CONSTITUTION: In a combined-cycle power plant whose main machinery is composed of a gas turbine generator 2, steam turbine generator 7, waste heat recovery boiler 5 and others, the steam turbine performs its pressure control by feeding the value of the steam turbine load obtained by a steam turbine load detector 15 to an inlet pressure control system 17, and thereby controlling the regulating valve 12. In this case, the inlet pressure control system 17 is composed by interposing a hysteresis circuit 42, with a required extent of insensitive region against the rise and fall of the input, between a function generator 28 inputting the output of the detector 15 and a subtracter 29 inputting the output of a pressure detector 13. The regulating valve 12 is controlled by the output of the subtracter 29 through a controller 30.
COPYRIGHT: (C)1980,JPO&Japio
JP2288779A 1979-02-26 1979-02-26 Pressure control system of steam turbine for combined-cycle plant Granted JPS55114834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2288779A JPS55114834A (en) 1979-02-26 1979-02-26 Pressure control system of steam turbine for combined-cycle plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2288779A JPS55114834A (en) 1979-02-26 1979-02-26 Pressure control system of steam turbine for combined-cycle plant

Publications (2)

Publication Number Publication Date
JPS55114834A true JPS55114834A (en) 1980-09-04
JPS6149488B2 JPS6149488B2 (en) 1986-10-29

Family

ID=12095176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2288779A Granted JPS55114834A (en) 1979-02-26 1979-02-26 Pressure control system of steam turbine for combined-cycle plant

Country Status (1)

Country Link
JP (1) JPS55114834A (en)

Also Published As

Publication number Publication date
JPS6149488B2 (en) 1986-10-29

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