JPS5632010A - Speed control system - Google Patents

Speed control system

Info

Publication number
JPS5632010A
JPS5632010A JP10553379A JP10553379A JPS5632010A JP S5632010 A JPS5632010 A JP S5632010A JP 10553379 A JP10553379 A JP 10553379A JP 10553379 A JP10553379 A JP 10553379A JP S5632010 A JPS5632010 A JP S5632010A
Authority
JP
Japan
Prior art keywords
opening
valve
initiating point
control
speed control
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
JP10553379A
Other languages
Japanese (ja)
Other versions
JPS6045723B2 (en
Inventor
Shigeo Aoki
Koji Fukui
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10553379A priority Critical patent/JPS6045723B2/en
Publication of JPS5632010A publication Critical patent/JPS5632010A/en
Publication of JPS6045723B2 publication Critical patent/JPS6045723B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)

Abstract

PURPOSE: To effect smoothly a turbine speed control effected by a closed loop control after an opening initiating point of a steam control valve by a method wherein a function deciding the validity of the opening initiating point is provided in a turbine speed control system.
CONSTITUTION: A control portion 1a outputs a command to open a steam control valve 3 by an open loop control until it is arrived at an opening initiating point of the steam control valve 3. When a valve opening degree signal S5 is in a predetermined range (n<S5<m) prescribing the valve opening degree, the control portion 1a diagnoses and determines that it is the opening initiating point of the steam control valve 3. Thus, not only an accelerating rate of a turbine but also the opening initiating point can be detected surely based upon the absolute value of the opening degree of the valve even when a pressure switch for detecting the opening initiation is performing a malfunction, therefore, a turbine speed control may be effected smoothly.
COPYRIGHT: (C)1981,JPO&Japio
JP10553379A 1979-08-21 1979-08-21 speed control device Expired JPS6045723B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10553379A JPS6045723B2 (en) 1979-08-21 1979-08-21 speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10553379A JPS6045723B2 (en) 1979-08-21 1979-08-21 speed control device

Publications (2)

Publication Number Publication Date
JPS5632010A true JPS5632010A (en) 1981-04-01
JPS6045723B2 JPS6045723B2 (en) 1985-10-11

Family

ID=14410220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10553379A Expired JPS6045723B2 (en) 1979-08-21 1979-08-21 speed control device

Country Status (1)

Country Link
JP (1) JPS6045723B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275690U (en) * 1988-11-28 1990-06-11

Also Published As

Publication number Publication date
JPS6045723B2 (en) 1985-10-11

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