DE459845C - Arrangement to improve the synchronization of several single-phase repulsion motors - Google Patents

Arrangement to improve the synchronization of several single-phase repulsion motors

Info

Publication number
DE459845C
DE459845C DES76753D DES0076753D DE459845C DE 459845 C DE459845 C DE 459845C DE S76753 D DES76753 D DE S76753D DE S0076753 D DES0076753 D DE S0076753D DE 459845 C DE459845 C DE 459845C
Authority
DE
Germany
Prior art keywords
motors
arrangement
synchronization
several single
improve
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
DES76753D
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
Publication date
Priority to DES76753D priority Critical patent/DE459845C/en
Application granted granted Critical
Publication of DE459845C publication Critical patent/DE459845C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K27/00AC commutator motors or generators having mechanical commutator
    • H02K27/04AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection
    • H02K27/06AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection with a single or multiple short-circuited commutator, e.g. repulsion motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Description

Anordnung zur Verbesserung des Gleichlaufs von mehreren Einphasen-Repulsionsmotoren. Die Erfindung betrifft eine Schaltung zur Verbesserung des Gleichlaufs von mehreren Einphasen-Repulsionsmotoren. Die Erfindung kann insbesondere Anwendung.finden beim Mehrmotorenantriebe von Arbeitsmaschinen, wiePapiermaschinen oderDruckereimaschinen, mittels Einphasen-Repulsionsmotoren. Der durch die Erfindung erzielte Gleichlauf der einzelnen Motoren ist kein absoluter Gleichlauf, wie er z. B. bei Synchronmotoren vorhanden ist. Er nähert sich aber sehr stark dem synchronen Gleichlauf.Arrangement to improve the synchronization of several single-phase repulsion motors. The invention relates to a circuit for improving the synchronization of several Single-phase repulsion motors. The invention can be used in particular in Multi-motor drives for work machines, such as paper machines or printing machines, by means of single-phase repulsion motors. The synchronization achieved by the invention the individual motors is not an absolute synchronism, as z. B. with synchronous motors is available. However, it comes very close to synchronous synchronization.

Erfindungsgemäß besitzen die einzelnen Motoren im Ständer gegenüber der Hauptwicklung um 9o elektrische Grade verschobene Hilfswicklungen, die zueinander parallel geschaltet sind. Weichen die Drehzahlen der einzelnen Motoren aus irgendeinem Grunde erheblich voneinander ab; so findet über die Hilfswicklungen eine Energieübertragung von dem einen auf den anderen Motor statt, die auf eine Abgleichung der Drehzahlen hinwirkt. Bleibt z. B. die Drehzahl des einen Motors zurück, so wächst das Feld des Motors infolge seinerReihenschlußcharakteristik, und in seiner Hilfswicklung wird eine stärkere Spannung induziert als in den Hilfswicklungen der anderen Motoren. Es kommt nun ein Strom zum Fließen, der den Magnetfluß des einen Motors schwächt und den der anderen Motoren stärkt. Die Hilfswicklung kann für dieselbe Spannung wie die Hauptwicklung gewickelt sein; man kann aber auch eine abweichende Spannung wählen. Beispielsweise kann die Spannung der Hilfswicklung höher als die der Hauptwicklung sein, so daß die Verbindungsleitungen der einzelnen Motoren nur geringen Querschnitt besitzen. An sich kann der Querschnitt der Hilfswicklungen schon geringer gewählt werden als der der Hauptwicklung, weil die Hilfswicklung nicht dauernd vom Strom durchflossen wird, sondern nur bei Abweichungen der Drehzahlen der einzelnen Motoren.According to the invention have the individual motors in the stator opposite auxiliary windings shifted by 90 electrical degrees to each other are connected in parallel. The speeds of the individual motors give way to any one Basically, they differ significantly from each other; energy is transferred via the auxiliary windings from one engine to the other instead of an alignment of the speeds works towards. Remains z. B. decreases the speed of one motor, the field grows of the motor due to its series connection characteristic, and in its auxiliary winding a higher voltage is induced than in the auxiliary windings of the other motors. A current now comes to flow, which weakens the magnetic flux of one motor and that of the other engines. The auxiliary winding can be for the same voltage be wound like the main winding; but you can also have a different voltage Select. For example, the voltage of the auxiliary winding can be higher than that of the main winding so that the connecting lines of the individual motors only have a small cross-section own. As such, the cross section of the auxiliary windings can be chosen to be smaller are considered to be that of the main winding, because the auxiliary winding is not continuously connected to the current is flowed through, but only in the event of deviations in the speeds of the individual motors.

In der Zeichnung ist die neue Anordnung an einem Beispiel veranschaulicht. Es sind zwei Einphasen-Repulsionsmotoren mit den Läufern i und 2 und den Ständerwicklungen 3 und 4 vorhanden. Die Ständer der beiden Motoren besitzen nun außerdem zwei Hilfswicklungen 5 und 6, die gegeneinandergeschaltet sind.The drawing illustrates the new arrangement using an example. There are two single-phase repulsion motors with rotors i and 2 and the stator windings 3 and 4 available. The stator of the two motors now also have two auxiliary windings 5 and 6, which are connected against each other.

Beim Abschalten der einzelnen Motoren kann man die Hilfswicklungen zur raschen Stillsetzung der Motoren benutzen, indem man jede für sich kurzschließt. Die Bürsten der Motoren stehen dann in der Generatorstellung und erzeugen in der Hilfswicklung einen Kurzschlußstrom, der bremsend wirkt. Die Anordnung ist derart, daß nach dem Abschalten der Ständerwicklungen 3 und 4 vom Netz die Hilfswicklungen 5 und 6 kurzgeschlossen werden, was durch eine Überbrückung der Verbindungsleitungen mittels eines Schalters ohne weiteres erzielt werden kann.When switching off the individual motors, the auxiliary windings can be used Use it to stop the motors quickly by short-circuiting each of them. The brushes of the motors are then in the generator position and generate in the Auxiliary winding a short-circuit current that has a braking effect. The arrangement is such that after disconnecting the stator windings 3 and 4 from the network, the auxiliary windings 5 and 6 are short-circuited, which is achieved by bridging the connecting lines can be easily achieved by means of a switch.

Claims (2)

PATENTANSPRÜCHE< i. Anordnung zur Verbesserung des Gleichlaufs von mehreren Einphasen-Repulsionsmotoren, gekennzeichnet durch gegenüber den Ständerhauptwicklungen um 9o elektrische Grade verschobene und zueinander parallel geschaltete Ständerhilfswicklungen. PATENT CLAIMS <i. Arrangement to improve synchronization of several single-phase repulsion motors, characterized by opposite the main stator windings Stator auxiliary windings shifted by 90 electrical degrees and connected in parallel to each other. 2. Anordnung zum Stillsetzen der nach Anspruch i °geschalteten Motoren, gekennzeichnet durch einen Schalter, der nach dem Abschalten der Ständerhauptwicklungen vom Netz die Hilfswicklungen durch Überbrückung ihrer Verbindungsleitungen kurzschließt.2. Arrangement for stopping the motors switched according to claim i °, characterized by a switch that is activated after the main stator windings have been disconnected from the mains short-circuits the auxiliary windings by bridging their connecting lines.
DES76753D Arrangement to improve the synchronization of several single-phase repulsion motors Expired DE459845C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES76753D DE459845C (en) Arrangement to improve the synchronization of several single-phase repulsion motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES76753D DE459845C (en) Arrangement to improve the synchronization of several single-phase repulsion motors

Publications (1)

Publication Number Publication Date
DE459845C true DE459845C (en) 1928-05-16

Family

ID=7506340

Family Applications (1)

Application Number Title Priority Date Filing Date
DES76753D Expired DE459845C (en) Arrangement to improve the synchronization of several single-phase repulsion motors

Country Status (1)

Country Link
DE (1) DE459845C (en)

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