DE2047208A1 - Arrangement for load-dependent excitation of a brushless synchronous machine - Google Patents

Arrangement for load-dependent excitation of a brushless synchronous machine

Info

Publication number
DE2047208A1
DE2047208A1 DE19702047208 DE2047208A DE2047208A1 DE 2047208 A1 DE2047208 A1 DE 2047208A1 DE 19702047208 DE19702047208 DE 19702047208 DE 2047208 A DE2047208 A DE 2047208A DE 2047208 A1 DE2047208 A1 DE 2047208A1
Authority
DE
Germany
Prior art keywords
excitation
synchronous machine
winding
exciter
excitation winding
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
DE19702047208
Other languages
German (de)
Inventor
Erich Dr.-Ing. 8500 Nürnberg. P Schwab
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19702047208 priority Critical patent/DE2047208A1/en
Publication of DE2047208A1 publication Critical patent/DE2047208A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K19/00Synchronous motors or generators
    • H02K19/16Synchronous generators
    • H02K19/26Synchronous generators characterised by the arrangement of exciting windings
    • H02K19/30Synchronous generators characterised by the arrangement of exciting windings for compounding
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/36Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using armature-reaction-excited machines

Landscapes

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

Description

Anordnung zur lastabhängigen Erregung einer bUrstenlosen Synchronmas chine Die Erfindung bezieht sich auf eine Anordnung zur lastabhängigen Erregung einer bürstenlosen Synchronmaschine, deren Erregerwick lung über mitrotierende Gleichrichter von einer ebenfalls mitrotierenden Haupterregermaschine gespeist wird, deren Erregerwicklung über einen Regler und Gleichrichter im Ständerkreis einer Hilfserregermaschine angeordnet ist, deren mitrotierende Hilfserregerwicklung an die Syuchronmaschinen-Erregerwicklung angeschlossen ist, Bei einer aus der Offenlegungsschrift 1 801 068 bekanntgewordenen Anordnung dieser Art ist die Hilfserregerwicklung parallel mit der Synchronmaschinen-Erregerwicklung an die rotierenden Gleichrichter der Haupterregermaschine angeschlossen. Auf diese Weise kann man bei Hochspannungs- oder Hochstrommaschinen eine lastabhängige Erregung der Synchronmaschine ohne Stromwandler und Drosselspulen bei normalen Bebriebsfällen erreichen. Dagegen kann die Spannung im Erregerkreis der Hilfserregermaschine bei bestimmten Betriebszuständen so weit zusammenbrechen, daß eine einwandfreie Erregung der Synchronmaschine nicht mehr möglich ist. Dies gilt für die Fälle; bei denen eine Rückwirkung der Ständerwicklung der Synchronmaschine auf ihre eigenen Erregerwicklung stattfindet und dabei der in der Synehronmaschinen-Erregerwicklung fließende trom stich ueber die mitrotierenden Gleichrichter schließt, wobei diese als Null-Dioden wirken. Die Spannung ist dann nur durcI den geringen Schwellwert der Gleichrichter bestimmt. Wegen der kle.nell Zeitkonstante des rregerkreises der Hilfserregermaschine wird dabei der Erregerstrom der Hilfserregermaschine schnell auf kleine Werte abgesunken sein, die für die Versorgung eines Reglers nicht ausreichen.Arrangement for load-dependent excitation of a brushless synchronizer The invention relates to an arrangement for load-dependent excitation a brushless synchronous machine whose excitation winding is via rotating rectifiers is fed by a also rotating main exciter, whose excitation winding Arranged in the stator circuit of an auxiliary exciter via a controller and rectifier whose co-rotating auxiliary excitation winding is connected to the Syuchron machine excitation winding is connected, in one of the published patent application 1 801 068 known The auxiliary excitation winding is arranged in parallel with the synchronous machine excitation winding connected to the rotating rectifier of the main exciter. To this In high-voltage or high-current machines, load-dependent excitation can be used the synchronous machine without current transformers and reactors in normal operating cases reach. On the other hand, the voltage in the excitation circuit of the auxiliary exciter can be certain operating conditions collapse so far that perfect excitation synchronous machine is no longer possible. This applies to the cases; at them a reaction of the stator winding of the synchronous machine on its own excitation winding takes place and the current flowing in the Synehron machine excitation winding stich over the co-rotating rectifier closes, these as zero diodes works. The voltage is then only through the low threshold value of the rectifier certainly. Because of the kle.nell time constant of the exciter circuit the Auxiliary exciter, the excitation current of the auxiliary exciter becomes fast may have dropped to small values that are not sufficient to supply a controller.

Der Erfindung liegt die Aufgabe zugrunde, auch bei solchen Betriebsfällen eine einwandfreie Erregung sicherzustellen und den Regler in die Lage zu versetzen, für die Haupterregermaschine den notwendigen Erregerstrom zu sichern.The invention is based on the object, even in such operating cases to ensure perfect excitation and to enable the controller to to secure the necessary excitation current for the main exciter.

Die Lösung der Aufgabe gelingt auf besonders einfache Weise dadurch, daß die llilfserregerwicklung in Reihe mit der Synchronmaschinen-Erregerwicklung an die rotierenden Gleichrichter der Haupterregermaschine angeschlossen ist.The task is solved in a particularly simple way by that the auxiliary exciter winding is in series with the synchronous machine exciter winding connected to the rotating rectifier of the main exciter.

Bei großen Erregerströmen der Synchronmaschine sind zumindest einzelne Gruppen von Polspulen der llilfserregerwicklung untereinander parallelzuschalten.In the case of large excitation currents from the synchronous machine, at least individual To connect groups of pole coils of the auxiliary excitation winding to one another in parallel.

Die Schaltung nach der Erfindung hat ferner den Vorteil, daß bei der Hintereinaiiderschaltung beider Erregerwicklungen infolge des dann maßgeblichen Stromes unterschiedliche Erwärmungen der einzelnen Erregerwicklungen praktisch ohne Einfluß bleiben.The circuit according to the invention also has the advantage that in the Backward connection of both excitation windings as a result of the then decisive Current different heating of the individual excitation windings practically without Remain influence.

In der Zeichnung ist ein vereinfacht dargestelltes-Ausführungsbeispiel der Anordnung nach der Erfindung dargestellt und nach-'folgend erläutert.In the drawing is a simplified illustrated embodiment the arrangement according to the invention shown and explained according to -'following.

Die Ständerwicklung einer Synchronmaschine 1 ist mit einem Netz verbunden. Auf der Welle der Synchronmaschine sitzt die Synchronwaschinen-Erregerwicklung 2, die mit den mitrotierenden Gleichrichtern 3 einer ebenfalls mitrotierenden Aukerwicklung 4 der Haupterregermaschine verbunden ist. Auf der Welle ist weiterhin die iiiifserregerwicklung 9 einer Hilfserregermaschine angeordnet und in Reihe mit der Erregerwicklung 2 an die Gleichrichter 3 angeschlossen. Der Standerkreis 8 der Hilfserregermaschine speist über ruhende Gleichrichter 7 und einen Regler 6 die Erregerwicklung 5 der Haupterregermaschine.The stator winding of a synchronous machine 1 is connected to a network. The synchronous machine excitation winding 2 sits on the shaft of the synchronous machine, with the co-rotating rectifiers 3 of a co-rotating external winding 4 is connected to the main exciter. The iiiifser excitation winding is still on the shaft 9 arranged an auxiliary exciter and in series with the excitation winding 2 on the rectifier 3 connected. The stand circuit 8 feeds the auxiliary exciter The excitation winding 5 of the main exciter machine is via a stationary rectifier 7 and a regulator 6.

Auch bei plötzlichen Laständerungen der Synchronmaschine bleibt bei dieser Schaltung die Erregerspannung der Haupterregermaschine erhalten.The synchronous machine remains constant even in the event of sudden changes in load this circuit receives the excitation voltage of the main exciter.

2 Patentansprüche 1 Figur2 claims 1 figure

Claims (2)

Patentansprüche 1 ;I Anordnung zur lastabhängigen Erregung einer bürstenlosen Synchronmaschine, deren Erregerwicklung über mitrotierende Gleichrichter von einer ebenfalls mitrotierenden Haupterregermaschine gespeist wird, deren Erregerwicklung über einen Regler und Gleichrichter im Ständerkreis einer Hilfserregermaschine angeordnet ist, deren mitrotierende Hilfserregerwicklung an die Synchronmaschinen-Erregerwicklung angeschlossen ist, dadurch gekennzeichnet, daß die Hilfserregerwicklung (9) in Reihe mit der Synchronmaschinen-Erregerwicklung (2) an die Gleichrichter (3) der Haupterregermaschine angeschlossen ist.Claims 1; I arrangement for load-dependent excitation of a brushless Synchronous machine, the field winding of which is driven by a rotating rectifier also co-rotating main exciter is fed, whose excitation winding Arranged in the stator circuit of an auxiliary exciter via a controller and rectifier whose co-rotating auxiliary excitation winding is connected to the synchronous machine excitation winding is connected, characterized in that the auxiliary excitation winding (9) in series with the synchronous machine exciter winding (2) to the rectifier (3) of the main exciter connected. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Polspulen der Hiliserregerwicklung untereinander zumindest gruppenweise parallelgeschaltet sind.2. Arrangement according to claim 1, characterized in that the pole coils the Hiliser excitation winding connected in parallel with each other at least in groups are.
DE19702047208 1970-09-25 1970-09-25 Arrangement for load-dependent excitation of a brushless synchronous machine Pending DE2047208A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702047208 DE2047208A1 (en) 1970-09-25 1970-09-25 Arrangement for load-dependent excitation of a brushless synchronous machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702047208 DE2047208A1 (en) 1970-09-25 1970-09-25 Arrangement for load-dependent excitation of a brushless synchronous machine

Publications (1)

Publication Number Publication Date
DE2047208A1 true DE2047208A1 (en) 1972-03-30

Family

ID=5783359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702047208 Pending DE2047208A1 (en) 1970-09-25 1970-09-25 Arrangement for load-dependent excitation of a brushless synchronous machine

Country Status (1)

Country Link
DE (1) DE2047208A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152968A1 (en) * 1984-01-27 1985-08-28 Koninklijke Philips Electronics N.V. Self-excited alternator
AU579340B2 (en) * 1984-01-27 1988-11-24 Philips Industries Holdings Limited Internally compensated brushless alternator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152968A1 (en) * 1984-01-27 1985-08-28 Koninklijke Philips Electronics N.V. Self-excited alternator
AU579340B2 (en) * 1984-01-27 1988-11-24 Philips Industries Holdings Limited Internally compensated brushless alternator

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