JPS54147304A - Method of backup in turbine control system - Google Patents

Method of backup in turbine control system

Info

Publication number
JPS54147304A
JPS54147304A JP5561178A JP5561178A JPS54147304A JP S54147304 A JPS54147304 A JP S54147304A JP 5561178 A JP5561178 A JP 5561178A JP 5561178 A JP5561178 A JP 5561178A JP S54147304 A JPS54147304 A JP S54147304A
Authority
JP
Japan
Prior art keywords
signal
load
detected
speed detector
speed
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
Application number
JP5561178A
Other languages
Japanese (ja)
Inventor
Yuji Yoshitomi
Eiju Maezawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5561178A priority Critical patent/JPS54147304A/en
Publication of JPS54147304A publication Critical patent/JPS54147304A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)

Abstract

PURPOSE: To enable continuation of load operation by outputing a set value of a load restricting device itself as a load signal to effect valve control when failure is detected by a speed detector in a turbine control system.
CONSTITUTION: An actual speed signal N detected by a speed detector 17 and a set signal No in a speed setting device 31 are comparred in a comparator 32, and an amount of deviation N is input into a regulating rate operating portion 33, further, the output thereof and a signal Po set in load setting device 34 are added in an adder 35, and thereby, a load signal Pg is obtained. When a failure of the speed detector 17 is detected, the load signal Po and set value Pl in a load restrictor are compared in a processing portion 52, and when the signal Pg<Pl, a gate 53 is opened and the signal Pl is coincided with the signal Po, however, when the signal Pg>Pl and a breaker is closed, the signal Pl is output through a gate 54 as a last load signal P, but if the breaker is opened, the load signal P is nullified and an emergency stop of a turbine is carried out.
COPYRIGHT: (C)1979,JPO&Japio
JP5561178A 1978-05-12 1978-05-12 Method of backup in turbine control system Pending JPS54147304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5561178A JPS54147304A (en) 1978-05-12 1978-05-12 Method of backup in turbine control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5561178A JPS54147304A (en) 1978-05-12 1978-05-12 Method of backup in turbine control system

Publications (1)

Publication Number Publication Date
JPS54147304A true JPS54147304A (en) 1979-11-17

Family

ID=13003551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5561178A Pending JPS54147304A (en) 1978-05-12 1978-05-12 Method of backup in turbine control system

Country Status (1)

Country Link
JP (1) JPS54147304A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263505A (en) * 1975-11-20 1977-05-26 Mitsubishi Electric Corp Turbine controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263505A (en) * 1975-11-20 1977-05-26 Mitsubishi Electric Corp Turbine controller

Similar Documents

Publication Publication Date Title
JPS54147304A (en) Method of backup in turbine control system
JPS54108143A (en) Running control method of multistage hydraulic machinery
JPS5551902A (en) Automatic tracking device for load limiter
JPS55166714A (en) Electric type speed governor
JPS557934A (en) Steam turbin controller
JPS5688920A (en) Operating method of power-regenerating turbine
JPS5593906A (en) Controller for turbine regulating valve in pressure change operation
JPS5692306A (en) Main steam pressure controlling system for turbine
JPS55100907A (en) Control of pressure at top of blast furnace
JPS55153803A (en) Steam turbine controlling device
JPS57173509A (en) Control method of turbine bypass
JPS56118572A (en) Method of controlling tandem system pumping-up power plant
JPS56162228A (en) Control system for two axle type gas turbine
JPS5510036A (en) Rotor stress prediction turbine control system
JPS5498403A (en) Turbine control apparatus
JPS5439781A (en) Electric governing system
JPS5632009A (en) Control system for steam turbine
JPS5549702A (en) Trip reliability improving system
JPS54116505A (en) Steam pressure controller for turbing bypass
JPS54148904A (en) Steam turbine control device
JPS5385204A (en) Controller for steam turbine
JPS5681098A (en) Governor control device
JPS5627007A (en) Method and device for controlling steam turbine for combined plant
JPS57116183A (en) Input restriction unit for hydraulic pump
JPS55138102A (en) Processing system for power failure of cascade controller