JPS5775553A - Ac exciter - Google Patents

Ac exciter

Info

Publication number
JPS5775553A
JPS5775553A JP14756480A JP14756480A JPS5775553A JP S5775553 A JPS5775553 A JP S5775553A JP 14756480 A JP14756480 A JP 14756480A JP 14756480 A JP14756480 A JP 14756480A JP S5775553 A JPS5775553 A JP S5775553A
Authority
JP
Japan
Prior art keywords
permanent magnets
magnetic
permanent magnet
iron cores
stator
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
Application number
JP14756480A
Other languages
Japanese (ja)
Other versions
JPS6322141B2 (en
Inventor
Yoshio Mishima
Masayuki Watabiki
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 JP14756480A priority Critical patent/JPS5775553A/en
Publication of JPS5775553A publication Critical patent/JPS5775553A/en
Publication of JPS6322141B2 publication Critical patent/JPS6322141B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/26—Synchronous generators characterised by the arrangement of exciting windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To prevent leakage flux and coercive force of a permanent magnet from reducing, by placing the permanent magnet by shifting it in the circumferential direction against a magnetic pole of a field coil and by separating a magnetic path in the stator side of the permanent magnet from that of a stator of the field coil. CONSTITUTION:In a fixed field system equipped with field coils wound on stator iron cores and permanent magnets performing initial excitation, the permanent magnets 7 are installed at the central position of an N pole iron core 11N and an S pole iron core 11S. The permanent magnets 7 are fixed to auxiliary yokes 12 forming magnetic paths on the stator side for said permanent magnet 7, and the auxiliary yokes 12 are fixed to the S pole iron cores 11S via non-magnetic material pieces 13. With such constitution, the auxiliary yokes 12 forming the stator side magnetic paths for the permanent magnets 7 and the iron cores 11N, 11S and a main yoke 10 forming the stator side magnetic paths for the field coils 6 are magnetically separated by the non-magnetic material pieces 13. Thus, since the permanent magnets 7 are between the iron cores 11N, 11S, and has independent magnetic paths, it is possible to reliably generate an initial excitation voltage.
JP14756480A 1980-10-23 1980-10-23 Ac exciter Granted JPS5775553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14756480A JPS5775553A (en) 1980-10-23 1980-10-23 Ac exciter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14756480A JPS5775553A (en) 1980-10-23 1980-10-23 Ac exciter

Publications (2)

Publication Number Publication Date
JPS5775553A true JPS5775553A (en) 1982-05-12
JPS6322141B2 JPS6322141B2 (en) 1988-05-10

Family

ID=15433190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14756480A Granted JPS5775553A (en) 1980-10-23 1980-10-23 Ac exciter

Country Status (1)

Country Link
JP (1) JPS5775553A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022719A1 (en) * 1998-10-12 2000-04-20 Robert Bosch Gmbh Electric machine, especially a three-phase generator, with an exciter
JP2011072111A (en) * 2009-09-25 2011-04-07 Kitashiba Electric Co Ltd Ac generator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240706A (en) * 1975-09-27 1977-03-29 Hitachi Ltd Portable generator
JPS54159108U (en) * 1978-04-28 1979-11-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240706A (en) * 1975-09-27 1977-03-29 Hitachi Ltd Portable generator
JPS54159108U (en) * 1978-04-28 1979-11-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022719A1 (en) * 1998-10-12 2000-04-20 Robert Bosch Gmbh Electric machine, especially a three-phase generator, with an exciter
US6362550B1 (en) 1998-10-12 2002-03-26 Robert Bosch Gmbh Electric machine, especially a three-phase generator, with an exciter
JP2011072111A (en) * 2009-09-25 2011-04-07 Kitashiba Electric Co Ltd Ac generator

Also Published As

Publication number Publication date
JPS6322141B2 (en) 1988-05-10

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