JPS562405A - Load control device - Google Patents
Load control deviceInfo
- Publication number
- JPS562405A JPS562405A JP7680479A JP7680479A JPS562405A JP S562405 A JPS562405 A JP S562405A JP 7680479 A JP7680479 A JP 7680479A JP 7680479 A JP7680479 A JP 7680479A JP S562405 A JPS562405 A JP S562405A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- main steam
- steam pressure
- input
- 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
Abstract
PURPOSE: To prevent control valve from erosion by determining the optimum opening of control valves in the region of voltage transforming operation, considering fluctuations of system frequency, slope regulation rate, and turbine thermal efficiency in a load control system for a turbine power plant.
CONSTITUTION: A load control device is so constituted that voltage transforming operation may be performed by throttling properly plural control valves installed at the flow inlet of the main steam based on a nozzle choke control system. A circuit, designed to obtain the optimum opening set point of control valve during voltage transforming operation, consists of an output directive signal 11, a subtractor 13 to input a generator output signal 12, a PI controller 15 to output a governer opening directive signal 16 and a function generator 17 to determine a main steam pressure setting signal 18 with an output directive signal 11. The circuit is also provided with a subtractor 20 to input the above setting signal 18 and a main steam pressure signal 19, and a PI controller 21 to output a main steam pressure correcting signal 22 and an adder 23 to output a boiler input directive signal 24.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54076804A JPS5820362B2 (en) | 1979-06-20 | 1979-06-20 | load control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54076804A JPS5820362B2 (en) | 1979-06-20 | 1979-06-20 | load control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562405A true JPS562405A (en) | 1981-01-12 |
JPS5820362B2 JPS5820362B2 (en) | 1983-04-22 |
Family
ID=13615834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54076804A Expired JPS5820362B2 (en) | 1979-06-20 | 1979-06-20 | load control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5820362B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0158756U (en) * | 1987-10-06 | 1989-04-12 | ||
CN106870024B (en) * | 2017-03-29 | 2018-06-22 | 北京华建网源电力设计研究所 | The Primary frequency control ability compensation method of coal-fired turbine LP rotors heating |
-
1979
- 1979-06-20 JP JP54076804A patent/JPS5820362B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5820362B2 (en) | 1983-04-22 |
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