JPS54160904A - Extraction turbine control system at critical control operating time - Google Patents
Extraction turbine control system at critical control operating timeInfo
- 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
Links
Landscapes
- 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
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) |
-
1978
- 1978-06-12 JP JP6978478A patent/JPS54160904A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6227243B2 (en) | 1987-06-13 |
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