AT100116B - Asynchronous machine assembled with a frequency converter. - Google Patents

Asynchronous machine assembled with a frequency converter.

Info

Publication number
AT100116B
AT100116B AT100116DA AT100116B AT 100116 B AT100116 B AT 100116B AT 100116D A AT100116D A AT 100116DA AT 100116 B AT100116 B AT 100116B
Authority
AT
Austria
Prior art keywords
frequency converter
asynchronous machine
machine assembled
assembled
slip rings
Prior art date
Application number
Other languages
German (de)
Original Assignee
Aeg Union Elek Wien
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 Aeg Union Elek Wien filed Critical Aeg Union Elek Wien
Application granted granted Critical
Publication of AT100116B publication Critical patent/AT100116B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K47/00—Dynamo-electric converters
    • H02K47/18—AC/AC converters
    • H02K47/22—Single-armature frequency converters with or without phase-number conversion
    • H02K47/28—Single-armature frequency converters with or without phase-number conversion operating as commutator machines with added slip-rings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Dc Machiner (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Mit einem Frequenzwandler zusammengebaute Asynchronm,aschine. 



   Bei der bekannten Anwendung eines Frequenzwandlers zur Verbesserung des Leistungsfaktors von Asynchronmaschingn nach Fig. 1 ist die Wirkungsweise des   Maschinensatzes wesentlich abhängig   von der Grösse des Winkels zwischen der im   Läufer der Hauptmaschine V   erzeugten E. M. K. und der 
 EMI1.1 
 Stromwender des   Freql1enzwandlers   E, was jedoch nur dann möglich ist, wenn diese Maschine keine Wendepole   besitzt. Eine weitere Möglichkeit besteht   in der künstlichen Phasenverschiebung der den Schleifringen von E   aufgedruckten   Spannung durch Phasenmischung im Transformator T, wobei sich jedoch bei niedriger Spannung   technische   Schwierigkeiten ergeben.

   Schliesslich könnte man die gewollte Verschiebung der beiden E.   1Vf. 1\. auch durch   eine gegenseitige Verdrehung der Wellen von 7 und E mittels einer entsprechenden Kupplung erreichen. Auf dieser an sich bekannten Möglichkeit aufbauend, ist die vorliegende Erfindung entstanden. Insbesondere wenn der Frequenzwandler fliegend auf der Welle des Hauptmotors angeordnet werden soll, führt die Ausbildung einer verstellbaren Kupplung au grossen konstruktiven Schwierigkeiten. 



   Gemäss der Erfindung wird mm eine Kupplung vermieden und die angeführte Schwierigkeit dadurch beseitigt, dass man die Anschlüsse der Schleifringe an der Gleichstromwicklung des   Frequmz-   wandlers versetzbar anordnet. 



   Die Fig. 2 und 3 zeigen eine Ausführungsform der neuen Einrichtung. Die Schleifringe sind auf eine besondere Nabe 1 aufgesetzt, welche gegen eine fest mit der Welle verkeilte Buchse 2 drehbar ist. 



  Der Nabenflansch ist mit   Schrauben : : J versehen,   die durch Langlöcher des Buchsenflansches greifen   und eine Verdrehung des Schleifringkörpers je nach Länge dieser Schlitze zulassen. Die Ableitungsbolzen 4 der Schleifringe erhalten an ihren'Enden Gabeln 5, in denen je ein um den Punkt o drehbares   Messer 6 gelagert ist. Wenn man nun beliebig viele Kommutatorsegmente 7 mit entsprechenden Schlitzen versieht, so kann man je nach Wahl die Messer an beliebige Segmente anschliessen. Nach Einstellung des Satzes auf den erforderlichen Betriebszustand werden die Anschlüsse verlötet und die Stellschraube 8 angebracht.



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  Asynchronous machine assembled with a frequency converter.



   In the known use of a frequency converter to improve the power factor of asynchronous machines according to FIG
 EMI1.1
 Commutator of Freql1enzwandlers E, which is only possible if this machine has no reversing poles. A further possibility consists in the artificial phase shift of the voltage printed on the slip rings of E by phase mixing in the transformer T, although technical difficulties arise at low voltage.

   Finally, the deliberate postponement of the two E. 1Vf. 1\. can also be achieved by mutually rotating the shafts of 7 and E using a corresponding coupling. The present invention is based on this possibility, which is known per se. In particular, if the frequency converter is to be arranged overhung on the shaft of the main motor, the formation of an adjustable coupling leads to great structural difficulties.



   According to the invention, a coupling is avoided and the stated difficulty is eliminated by arranging the connections of the slip rings on the direct current winding of the frequency converter so that they can be moved.



   Figs. 2 and 3 show an embodiment of the new device. The slip rings are placed on a special hub 1 which can be rotated against a bushing 2 that is firmly keyed to the shaft.



  The hub flange is provided with screws:: J, which grip through the elongated holes of the socket flange and allow the slip ring body to rotate depending on the length of these slots. The derivation bolts 4 of the slip rings have forks 5 at their ends, in each of which a knife 6 rotatable about point o is mounted. If you now provide any number of commutator segments 7 with appropriate slots, you can connect the knife to any segments, depending on your choice. After setting the set to the required operating condition, the connections are soldered and the adjusting screw 8 is attached.

Claims (1)

PATENT-ANSPRUCH : Mit einem Frequenzwandler zusammengebaute Asynehronmaschine, dadurch gekennzeichnet, dass der Schleifringkörper (1) des Frequenzwandlers (E) mit den Ableitungsbolzen (4) gegenüber dem Kollektor drehbar ist und die Ableitungsbolzen mit beliebigen Kollektorsegmenten (7) verbunden werden können, zum Zwecke der Einstellung der Spannungsphase des Frequenzwandlers. EMI2.1 PATENT CLAIM: Asynchronous machine assembled with a frequency converter, characterized in that the slip ring body (1) of the frequency converter (E) with the discharge bolts (4) can be rotated relative to the collector and the discharge bolts can be connected to any collector segments (7) for the purpose of setting the voltage phase of the frequency converter. EMI2.1
AT100116D 1922-12-01 1923-12-01 Asynchronous machine assembled with a frequency converter. AT100116B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA38931D DE391157C (en) 1922-12-01 1922-12-01 Frequency converter

Publications (1)

Publication Number Publication Date
AT100116B true AT100116B (en) 1925-06-10

Family

ID=6931090

Family Applications (1)

Application Number Title Priority Date Filing Date
AT100116D AT100116B (en) 1922-12-01 1923-12-01 Asynchronous machine assembled with a frequency converter.

Country Status (2)

Country Link
AT (1) AT100116B (en)
DE (1) DE391157C (en)

Also Published As

Publication number Publication date
DE391157C (en) 1924-03-05

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