JPS5692306A - Main steam pressure controlling system for turbine - Google Patents
Main steam pressure controlling system for turbineInfo
- Publication number
- JPS5692306A JPS5692306A JP16921279A JP16921279A JPS5692306A JP S5692306 A JPS5692306 A JP S5692306A JP 16921279 A JP16921279 A JP 16921279A JP 16921279 A JP16921279 A JP 16921279A JP S5692306 A JPS5692306 A JP S5692306A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- main control
- controller
- deviation
- pressure
- 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.)
- Pending
Links
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE: To prevent excessive reducing of the opening of a main control valve, by operating a main steam control valve only in case that the main steam pressure is lower than a predetermined value and the pressure lowering speed is higher than a predetermined value, and reducing the opening of the main control valve continuously until the pressure drop is stopped.
CONSTITUTION: A main steam pressure controlling system 13 is applied in a main control system for a turbine which consists of an arithmetic means 3 for calculating the deviation between a setting load value and the signal of an actual load and a speed-load controlling means 5 operated by a controller 4 in response to the output of the means 3. The control system 13 comprises an arithmetic means 8 for calculating the deviation between a setting pressure value and an actual pressure, an IPR controller 9 afforded with the deviation signal from the arithmetic means 8 and produces a main control valve closing signal, and an arithmetic means 10 for producing a main control valve opening signal after operation of the IPR controller 9 by calculating the deviation between the output of the controller 9 and that of the controlling means 5. In the system 13, there are further provided a lower limiter 11 for preventing that the main control valve is closed excessively circuit 12 for comparing the output of the lower limiter 11 and that of the controlling means 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16921279A JPS5692306A (en) | 1979-12-27 | 1979-12-27 | Main steam pressure controlling system for turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16921279A JPS5692306A (en) | 1979-12-27 | 1979-12-27 | Main steam pressure controlling system for turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5692306A true JPS5692306A (en) | 1981-07-27 |
Family
ID=15882275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16921279A Pending JPS5692306A (en) | 1979-12-27 | 1979-12-27 | Main steam pressure controlling system for turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5692306A (en) |
-
1979
- 1979-12-27 JP JP16921279A patent/JPS5692306A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53102405A (en) | Speed governing of steam turbine | |
JPS57210170A (en) | Operation controller for hydraulic machinery | |
JPS5692306A (en) | Main steam pressure controlling system for turbine | |
JPS5395402A (en) | Pressure controller for atomic turbine | |
JPS6432005A (en) | Turbine bypass apparatus | |
JPS5584806A (en) | System for operating thermoelectric power plant when its power supply system is disconnected | |
JPS56504A (en) | Automatic valve switching circuit for steam turbine | |
JPS56148603A (en) | Runback controlling method in pressure varying running plant | |
JPS5385204A (en) | Controller for steam turbine | |
JPS53120001A (en) | Turbine control device | |
JPS5593906A (en) | Controller for turbine regulating valve in pressure change operation | |
JPS55117013A (en) | Load runback system | |
JPS56126605A (en) | Turbine controller | |
JPS5728813A (en) | Controller for turbine | |
JPS5632009A (en) | Control system for steam turbine | |
JPS56132407A (en) | Turbine control system | |
JPS56162228A (en) | Control system for two axle type gas turbine | |
JPS6472466A (en) | Combustion air flow controller | |
JPS5752606A (en) | Automatic control system for turbine | |
JPS54140010A (en) | Electronic oil pressure type governor | |
JPS5399105A (en) | Dual system changing over method for control of a turbine | |
JPS54104005A (en) | Serging preventive device of centrifugal compressor etc. | |
JPS5638508A (en) | Anti-flashing equipment for steam generator | |
JPS5439781A (en) | Electric governing system | |
JPS5476703A (en) | Controller of steam turbine |