JPS5632010A - Speed control system - Google Patents
Speed control systemInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0275690U (en) * | 1988-11-28 | 1990-06-11 |
-
1979
- 1979-08-21 JP JP10553379A patent/JPS6045723B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6045723B2 (en) | 1985-10-11 |
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