JPS56148603A - Runback controlling method in pressure varying running plant - Google Patents
Runback controlling method in pressure varying running plantInfo
- 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
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
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)
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 |
-
1980
- 1980-04-18 JP JP5034780A patent/JPS56148603A/en active Granted
Cited By (2)
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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