JPS56148603A - Runback controlling method in pressure varying running plant - Google Patents

Runback controlling method in pressure varying running plant

Info

Publication number
JPS56148603A
JPS56148603A JP5034780A JP5034780A JPS56148603A JP S56148603 A JPS56148603 A JP S56148603A JP 5034780 A JP5034780 A JP 5034780A JP 5034780 A JP5034780 A JP 5034780A JP S56148603 A JPS56148603 A JP S56148603A
Authority
JP
Japan
Prior art keywords
rate
boiler
runback
pressure
load command
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
JP5034780A
Other languages
Japanese (ja)
Other versions
JPS6337242B2 (en
Inventor
Motoharu Kuchitsu
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 JP5034780A priority Critical patent/JPS56148603A/en
Publication of JPS56148603A publication Critical patent/JPS56148603A/en
Publication of JPS6337242B2 publication Critical patent/JPS6337242B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE: To ensure a stabilized control of a boiler by throttling a turbine regulator valve while setting of the pressure of main steam of the boiler is allowed to lower more slowly than during normal running when the load command has lowered rapidly by a runback operation.
CONSTITUTION: A pressure varying running plant effects control of the pressure of main steam of a boiler and of the load in accordance with a load command signal. When a trouble has occurred to a boiler auxiliary machine or the like, a turbine regulator valve is first throttled by a runback operation. Meanwhile, the rate of variation of a rate limiter 71 is set to 0%/min, and after a predetermined interval of time, it is switched to 1%/min. Thus, even if the load command signal S1 lowers at a rate of variation of 100%/min, the output signal S3 of the rate limiter 71 is allowed to lower slowly at the rate of 1%/min after lapse of a predetermined time after the signal S1 has lowered to 50%.
COPYRIGHT: (C)1981,JPO&Japio
JP5034780A 1980-04-18 1980-04-18 Runback controlling method in pressure varying running plant Granted JPS56148603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5034780A JPS56148603A (en) 1980-04-18 1980-04-18 Runback controlling method in pressure varying running plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5034780A JPS56148603A (en) 1980-04-18 1980-04-18 Runback controlling method in pressure varying running plant

Publications (2)

Publication Number Publication Date
JPS56148603A true JPS56148603A (en) 1981-11-18
JPS6337242B2 JPS6337242B2 (en) 1988-07-25

Family

ID=12856374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5034780A Granted JPS56148603A (en) 1980-04-18 1980-04-18 Runback controlling method in pressure varying running plant

Country Status (1)

Country Link
JP (1) JPS56148603A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122711A (en) * 1982-12-28 1984-07-16 Toshiba Corp Load control device for complex cycle electric power plant
JP2013181436A (en) * 2012-02-29 2013-09-12 Mitsubishi Heavy Ind Ltd Power generation system, and control method of the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122711A (en) * 1982-12-28 1984-07-16 Toshiba Corp Load control device for complex cycle electric power plant
JP2013181436A (en) * 2012-02-29 2013-09-12 Mitsubishi Heavy Ind Ltd Power generation system, and control method of the same

Also Published As

Publication number Publication date
JPS6337242B2 (en) 1988-07-25

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