JPS54160904A - Extraction turbine control system at critical control operating time - Google Patents

Extraction turbine control system at critical control operating time

Info

Publication number
JPS54160904A
JPS54160904A JP6978478A JP6978478A JPS54160904A JP S54160904 A JPS54160904 A JP S54160904A JP 6978478 A JP6978478 A JP 6978478A JP 6978478 A JP6978478 A JP 6978478A JP S54160904 A JPS54160904 A JP S54160904A
Authority
JP
Japan
Prior art keywords
control signal
critical
critical control
extraction
control system
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
JP6978478A
Other languages
Japanese (ja)
Other versions
JPS6227243B2 (en
Inventor
Motoro Iwato
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6978478A priority Critical patent/JPS54160904A/en
Publication of JPS54160904A publication Critical patent/JPS54160904A/en
Publication of JPS6227243B2 publication Critical patent/JPS6227243B2/ja
Granted legal-status Critical Current

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  • Control Of Turbines (AREA)

Abstract

PURPOSE: To eliminate apprehension of hunting in a control system of an extraction turbine by controlling the opening of a high pressure steam control valve with a critical control signal comparatively selected from a critical control signal and a control signal from an extraction regulator.
CONSTITUTION: A governor signal P2 from the governor 8 in a turbine shaft system is converted to a critical control signal PK by critical control signal converting means 10. Comparing and selecting means 11 compares, in operating under critical control an extraction turbine, the critical control signal PK with a control signal PA from extraction regulator 9. As a result, the opening of a high pressure steam control valve 5 is controlled by the selected critical control signal PA or the control signal PA. Accordingly, it does not apprehend to occur a hunting in the control system.
COPYRIGHT: (C)1979,JPO&Japio
JP6978478A 1978-06-12 1978-06-12 Extraction turbine control system at critical control operating time Granted JPS54160904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6978478A JPS54160904A (en) 1978-06-12 1978-06-12 Extraction turbine control system at critical control operating time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6978478A JPS54160904A (en) 1978-06-12 1978-06-12 Extraction turbine control system at critical control operating time

Publications (2)

Publication Number Publication Date
JPS54160904A true JPS54160904A (en) 1979-12-20
JPS6227243B2 JPS6227243B2 (en) 1987-06-13

Family

ID=13412722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6978478A Granted JPS54160904A (en) 1978-06-12 1978-06-12 Extraction turbine control system at critical control operating time

Country Status (1)

Country Link
JP (1) JPS54160904A (en)

Also Published As

Publication number Publication date
JPS6227243B2 (en) 1987-06-13

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