JPS5498404A - Turbine starting control system - Google Patents

Turbine starting control system

Info

Publication number
JPS5498404A
JPS5498404A JP418478A JP418478A JPS5498404A JP S5498404 A JPS5498404 A JP S5498404A JP 418478 A JP418478 A JP 418478A JP 418478 A JP418478 A JP 418478A JP S5498404 A JPS5498404 A JP S5498404A
Authority
JP
Japan
Prior art keywords
opening
turbine
speed
rising
given
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.)
Pending
Application number
JP418478A
Other languages
Japanese (ja)
Inventor
Seiitsu Nikawara
Satoshi Kadouchi
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 JP418478A priority Critical patent/JPS5498404A/en
Publication of JPS5498404A publication Critical patent/JPS5498404A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)

Abstract

PURPOSE: To accomplish stable shift to PID (proportional plus integral plus derivative) control by opening the turbine control valve gradually by a given opening until the opening point thereof while in preliminary running control, and closing thereof by a given degree when the speed reaches a set level.
CONSTITUTION: With a turbine starting program coming into action at a time t0, a main stop valve bypassing valve is opened gradually by a given opening Δ1 until a time t1 when the start of rising turbine speed is detected. Upon detection of the starting point in the rising speed, the bypassing valve 3 is closed by a given opening Δ1, in the subsequent control cycle to make a condition specified immediately prior to the start in the rising turbine speed.
COPYRIGHT: (C)1979,JPO&Japio
JP418478A 1978-01-20 1978-01-20 Turbine starting control system Pending JPS5498404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP418478A JPS5498404A (en) 1978-01-20 1978-01-20 Turbine starting control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP418478A JPS5498404A (en) 1978-01-20 1978-01-20 Turbine starting control system

Publications (1)

Publication Number Publication Date
JPS5498404A true JPS5498404A (en) 1979-08-03

Family

ID=11577609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP418478A Pending JPS5498404A (en) 1978-01-20 1978-01-20 Turbine starting control system

Country Status (1)

Country Link
JP (1) JPS5498404A (en)

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