JPS5593909A - Control system for rotor stress prediction turbine - Google Patents

Control system for rotor stress prediction turbine

Info

Publication number
JPS5593909A
JPS5593909A JP30679A JP30679A JPS5593909A JP S5593909 A JPS5593909 A JP S5593909A JP 30679 A JP30679 A JP 30679A JP 30679 A JP30679 A JP 30679A JP S5593909 A JPS5593909 A JP S5593909A
Authority
JP
Japan
Prior art keywords
turbine
rate
change
load
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.)
Pending
Application number
JP30679A
Other languages
Japanese (ja)
Inventor
Hiroshi Matsumoto
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 JP30679A priority Critical patent/JPS5593909A/en
Publication of JPS5593909A publication Critical patent/JPS5593909A/en
Pending legal-status Critical Current

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  • Control Of Turbines (AREA)

Abstract

PURPOSE: To perform safe starting below an allowable stress level and improve load follow-up performance, by starting with prediction of the inlet steam conditions of a turbine and sequentially optimizing the rate of speed increase and rate of load change of the turbine.
CONSTITUTION: The stress of a turbine is calculated on the basis of the state change of a working fluid and optimization is periodically effected on the basis of the result of the calculation in a control system. This control system comprises a means 170 for predicting the stress of a turbine rotor at a first period and determining the maximum rate of change in the operating state of the turbine to keep the stress below a limit value and a means 50 for watching whether there is a demand for a load change, at a period shorter than the first period. The load is changed at a prescribed rate since the presence of a demand for the change is confirmed by the means 50. The load is changed at a maximum rate determined by the means 170 since the rate is determined.
COPYRIGHT: (C)1980,JPO&Japio
JP30679A 1979-01-08 1979-01-08 Control system for rotor stress prediction turbine Pending JPS5593909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30679A JPS5593909A (en) 1979-01-08 1979-01-08 Control system for rotor stress prediction turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30679A JPS5593909A (en) 1979-01-08 1979-01-08 Control system for rotor stress prediction turbine

Publications (1)

Publication Number Publication Date
JPS5593909A true JPS5593909A (en) 1980-07-16

Family

ID=11470211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30679A Pending JPS5593909A (en) 1979-01-08 1979-01-08 Control system for rotor stress prediction turbine

Country Status (1)

Country Link
JP (1) JPS5593909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370116C (en) * 2006-08-21 2008-02-20 上海发电设备成套设计研究院 Online computing and controlling method for steam turbine high and medium pressure rotator equivalent stress

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370116C (en) * 2006-08-21 2008-02-20 上海发电设备成套设计研究院 Online computing and controlling method for steam turbine high and medium pressure rotator equivalent stress

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