JPS5656195A - Excitation control device for rotary machine - Google Patents

Excitation control device for rotary machine

Info

Publication number
JPS5656195A
JPS5656195A JP13390879A JP13390879A JPS5656195A JP S5656195 A JPS5656195 A JP S5656195A JP 13390879 A JP13390879 A JP 13390879A JP 13390879 A JP13390879 A JP 13390879A JP S5656195 A JPS5656195 A JP S5656195A
Authority
JP
Japan
Prior art keywords
field current
generator
deviation signal
exceeds
signal
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
JP13390879A
Other languages
Japanese (ja)
Inventor
Tsutomu Yamada
Masaru Shimomura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13390879A priority Critical patent/JPS5656195A/en
Publication of JPS5656195A publication Critical patent/JPS5656195A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE:To enable the use of a generator up to the limit of its thermal capacity by limiting an excessive excitation of the generator when the field current exceeds the time limit inversely proportional to the magnitude of the allowable field current when the field current exceeds the allowable field current responsive to the internal cooling gas pressure of the generator. CONSTITUTION:When a deviation signal between a field current set value responsive to the internal cooling gas pressure of a generator 1 from an allowable field current setting unit 12 and a field current detected by a shunt unit 6 becomes higher than a predetermined value, a relay 14 is energized so that its contact 14b is opened. Thus, an operational amplifier 16 will integrate a deviation signal with a time constant inversely proportional to the deviation signal. When the output signal of the amplifier 16 exceeds the output from the voltage signal generator 18, a relay 20 is energized so that its contact 20a is closed, and the deviation signal is supplied to an automatic voltage controller 4.
JP13390879A 1979-10-13 1979-10-13 Excitation control device for rotary machine Pending JPS5656195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13390879A JPS5656195A (en) 1979-10-13 1979-10-13 Excitation control device for rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13390879A JPS5656195A (en) 1979-10-13 1979-10-13 Excitation control device for rotary machine

Publications (1)

Publication Number Publication Date
JPS5656195A true JPS5656195A (en) 1981-05-18

Family

ID=15115903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13390879A Pending JPS5656195A (en) 1979-10-13 1979-10-13 Excitation control device for rotary machine

Country Status (1)

Country Link
JP (1) JPS5656195A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511910A (en) * 1974-06-11 1976-01-09 Mitsubishi Electric Corp Hatsudenkino seigyosochi
JPS5370316A (en) * 1976-12-06 1978-06-22 Hitachi Ltd Generator excess excitation preventing control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511910A (en) * 1974-06-11 1976-01-09 Mitsubishi Electric Corp Hatsudenkino seigyosochi
JPS5370316A (en) * 1976-12-06 1978-06-22 Hitachi Ltd Generator excess excitation preventing control device

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