DE519909C - Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines - Google Patents

Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines

Info

Publication number
DE519909C
DE519909C DES95025D DES0095025D DE519909C DE 519909 C DE519909 C DE 519909C DE S95025 D DES95025 D DE S95025D DE S0095025 D DES0095025 D DE S0095025D DE 519909 C DE519909 C DE 519909C
Authority
DE
Germany
Prior art keywords
machines
excitation current
arrangement
regulating
secondary circuit
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.)
Expired
Application number
DES95025D
Other languages
German (de)
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 Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
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 Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES95025D priority Critical patent/DE519909C/en
Application granted granted Critical
Publication of DE519909C publication Critical patent/DE519909C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/34—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/38—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a commutator machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Description

Für die Drehzahlregelung oder für die Phasenkompenslerung von Asynchronmaschinen schaltet man in deren Sekundärstromkreis Kommutatorhintermaschinen ein, die im Läufer über Schleifringe mit Netzfrequenz oder annähernder Netzfrequenz erregt werden. Für die Regelung dieser Erregung verwendet man entweder Stufentransformatoren oder Doppeldrehtransformatoren. Der Stufentransformator hat den Nachteil, daß er für eine selbsttätige Betätigung mit Rücksicht auf die großen Verstellkräfte nicht geeignet ist und die Stufenregelung außerdem für viele Anwendungsgebiete ausscheidet, da sie nicht genügend fein ist. Die Regelung des Erregerstromes mittels eines Doppeldrehtransformators ist technisch vollkommen, jedoch ist dieser Transformator sehr teuer.
Die Erfindung betrifft eine Anordnung zurFor speed control or for phase compensation of asynchronous machines, commutator machines are switched on in their secondary circuit, which are excited in the rotor via slip rings with mains frequency or close to mains frequency. Either step transformers or double rotary transformers are used to regulate this excitation. The step transformer has the disadvantage that it is not suitable for automatic actuation in view of the large adjustment forces and that step control is also ruled out for many areas of application, since it is not sufficiently fine. The regulation of the excitation current by means of a double rotary transformer is technically perfect, but this transformer is very expensive.
The invention relates to an arrangement for

ao Regelung des Erregerstromes an Kommutatorhintermaschinen, die mit Netzfrequenz oder annähernder Netzfrequenz erregt werden, die ebenso feinstufig wie bei der Verwendung eines Doppeldrehtransformators ist, jedoch den Vorzug besitzt, daß nur ein einfacher Drehtransformator erforderlich ist. Erfindungsgemäß ist in den Erregerstromkreis der Kommutatorhintermaschine einao regulation of the excitation current on the commutator rear machines, which are excited with a mains frequency or an approximate mains frequency, which are just as finely graded as when they are used a double rotary transformer, but has the advantage that only a simple one Rotary transformer is required. According to the invention is in the excitation circuit the commutator back machine

Einfachdrehtransformator in Reihenschaltung seiner beiden gegeneinander verdrehlbaren 30 Wicklungen eingeschaltet. Ein derartiger Drehtransformator wirkt, wenn die magnetischen Achsen der beiden Wicklungen gleichsinnig miteinander zusammenfallen, wie eine starke Drosselspule. Wenn die magnetischen 35 Achsen einander entgegengerichtet sind, so ist der Widerstand vernachlässigbar klein. Man kann daher durch einfache Verdrehung eine feinstufige Regelung der Drosselwirkung des Drehtransformators und damit auch eine fein- 4° stufige Regelung des Erregerstromes herbeiführen. Single rotary transformer in series connection of its two mutually rotatable 30 Windings switched on. Such a rotary transformer works when the magnetic Axes of the two windings coincide with each other in the same direction, like a strong choke coil. When the magnetic 35 Axes are opposite to each other, the resistance is negligibly small. Man can therefore be used to fine-tune the throttling effect of the Rotary transformer and thus also a fine 4 ° stage control of the excitation current.

Claims (1)

Patentanspruch:Claim: Anordnung zur Regelung des Erregerstromes bei in den Sekundärstromkreis von Asynchronmaschinen eingeschalteten Kommutatorhintermaschinen, die im Läufer mit Netzfrequenz oder annähernder Netzfrequenz erregt werden, dadurch gekennzeichnet, daß in den Erregerstromkreis der Hintermaschine ein Drehtransformator in Reihenschaltung seiner beiden gegeneinander verdrehbaren Wicklungen eingeschaltet ist.Arrangement for regulating the excitation current in the secondary circuit Commutator machines switched on by asynchronous machines, which are in the rotor are excited with mains frequency or approximate mains frequency, characterized in that that in the excitation circuit of the rear machine a rotary transformer in series connection of its two mutually rotatable windings is switched on.
DES95025D 1929-11-17 1929-11-17 Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines Expired DE519909C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES95025D DE519909C (en) 1929-11-17 1929-11-17 Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES95025D DE519909C (en) 1929-11-17 1929-11-17 Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines

Publications (1)

Publication Number Publication Date
DE519909C true DE519909C (en) 1931-03-05

Family

ID=7519093

Family Applications (1)

Application Number Title Priority Date Filing Date
DES95025D Expired DE519909C (en) 1929-11-17 1929-11-17 Arrangement for regulating the excitation current in the case of commutator machines connected to the secondary circuit of asynchronous machines

Country Status (1)

Country Link
DE (1) DE519909C (en)

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