DE461986C - Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator - Google Patents

Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator

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Publication number
DE461986C
DE461986C DEM88224D DEM0088224D DE461986C DE 461986 C DE461986 C DE 461986C DE M88224 D DEM88224 D DE M88224D DE M0088224 D DEM0088224 D DE M0088224D DE 461986 C DE461986 C DE 461986C
Authority
DE
Germany
Prior art keywords
asynchronous machine
stator
compensated
rotor
auxiliary 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.)
Expired
Application number
DEM88224D
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication date
Priority to DEM88224D priority Critical patent/DE461986C/en
Application granted granted Critical
Publication of DE461986C publication Critical patent/DE461986C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/34Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/38Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a commutator machine

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

Description

Asynchronmaschine, kompensiert durch einen mechanisch vom Läufer der _Asynchronmaschine a_ ngetriebenen und kollektorseitig ans Netz angeschlossenen Periodenumformer mit Hilfswicklung im Stator In vielen Betrieben werden kompensiierte Asynchronma.schinen b:.evorzugt, bei denen der Asynchroncharakter der Maschine gewahrt bleibt, im Gegensatz zu den üblichen Synchronin.duktionsmotor.en. Die. Kompensation wird zweckmäße über Perioidenumformer vorbenommen. Der Nachteil dieser Ausführungen liegt aber darin, daßeinerseits der Kollektor des Periodenumformers für den vollen Rotorstrom der Asynchronmaschine bemessen werden muß, anderseits die zur Spannungsregulierung des Periodenumformers nötige Apparatur ebenfalls diese hohen Ströme bewältigen muß. Diese Mängel werden bei der den Gegenstand der Erfindung bildenden Asynchronmaschiue, die durch einen kollektorseitig ans Netz angeschlossenen Periodenumformer mit Hilfswicklung im Stator kompensiert wird, dadurch behoben, daß diese Hilfswicklung über einen Stromtransformator gespeist wird, der in Reihe zum Stator der asynchronen Vordermaschine liegt. Zweck.dieser Kompensationswicklung ist, die Amperewindungen der von den Schleifringen aus gespeisten Kollektorarmatur zu kompensieren, so daß die dem Kollektor vom Netz zuzuführenden Ströme lediglich dem Leerstrom des Umformers entsprechen. Hüerdurch wird erreicht, j daß einerseits der Kollektor klein gehalten werden kann und unter günstigen Kommutationsverhältnissen. arbeitet, anderseits auch die Regulierapparatur der Kollektorspannung klein gehalten werden kann. Ein wesentlicher Vorteil dieses kollektorseitig ans Netz angeschlossenen und mittels :einer Statorwicklung kompensierten Periodenumformers besteht darin, daß die Bürstenspannung dem Schlupf entsprechend klein ist, im Gegensatz zum schleifringseitig angeschlossenen Periodenumformer, wo die Netzp,erio:denzahl herrscht.Asynchronous machine, compensated mechanically by the rotor of the _Asynchronous machine driven and connected to the grid on the collector side Period converter with auxiliary winding in the stator In many companies, compensated Asynchronous machines b: preferred in which the asynchronous character of the machine is preserved remains, in contrast to the usual synchronous induction motors. The. compensation is expediently done via perioid transducers. The disadvantage of these designs but lies in the fact that on the one hand the collector of the period converter for the full The rotor current of the asynchronous machine must be measured, on the other hand that for voltage regulation the period converter necessary equipment must also cope with these high currents. These deficiencies are in the asynchronous machine forming the subject of the invention, the period converter with auxiliary winding connected to the network on the collector side is compensated in the stator, eliminated by the fact that this auxiliary winding has a Current transformer is fed, which is in series with the stator of the asynchronous front machine lies. The purpose of this compensation winding is to measure the ampere-turns of the slip rings to compensate from the collector armature fed, so that the collector from the network The currents to be supplied only correspond to the idle current of the converter. Through it is achieved that on the one hand the collector can be kept small and under favorable commutation ratios. works, on the other hand also the regulating apparatus the collector voltage can be kept small. A major benefit of this Connected to the grid on the collector side and compensated by means of: a stator winding Period converter consists in the fact that the brush voltage corresponds to the slip is small, in contrast to the period converter connected on the slip ring side, where the Netzp, erio: denzahl rules.

Ein Ausführungsbeispiel des Erfindungsgegenstandes zeigt das Schaltbild. i ist der Stator und a der Rotor der zu kompensierenden Asynchronmaschäne. Um die Polzahl des Periodenumformers frei wählen zu können, wird er über eine Übersetzung 3 vorn Rotor der Asynchronmaschne i"-;, aus angetrieben. Der Kollektoranker ¢ des Periodenumformers ist mit Schleifringen 5r versehen, über welche die Speisung des Ankers q. vom Rotor der Asynchronmaschüne aus erfolgt. Der Kollektoranschluß geschieht am Netz über einen regelbaren Spannungstransformator 6. Die Kompensationswicklung 7 des Perio,denumformers wird durch einen Serientransformator 8 gespeist, der zur StatoTwicklung i der Asynchronmaschine in Serie geschaltet 'ist. Durch entsprechende Wahl der Amperewind:ungen der Kompensatlonswicklvng wird es stets.möglich sein, die AmperewindungenderKollektorarmatur derart zu kompensieren, daß dem Kollektor des F#erio:denumform#ers ledigUchein Leerstrom zugeführt werden. muß, um die nötige Komp,ensatiionsspannung an den Bürsten zu erhalten.The circuit diagram shows an exemplary embodiment of the subject matter of the invention. i is the stator and a is the rotor of the asynchronous machine to be compensated. To the The number of poles of the period converter can be freely selected via a translation 3 front rotor of the asynchronous machine i "-;, driven out. The collector armature ¢ des Period converter is provided with slip rings 5r, via which the supply of the Anchor q. takes place from the rotor of the asynchronous machine. The collector connection happens on the mains via an adjustable voltage transformer 6. The compensation winding 7 of the Perio, denumformers is fed by a series transformer 8, which is used to Stato development i of the asynchronous machine is connected in series. Through appropriate Choice of ampere wind: it will always be possible to change the compensation winding to compensate the ampere turns of the collector armature in such a way that the collector des F # erio: denumform # ers can only be supplied with no idle current. must to get the necessary Comp, to maintain ensatiion tension on the brushes.

Um die aus dem Leerstrom der Asynchronmaschine resultierende Phasenabweichung zwischen den, Strömen der Teile q. und 7 aufzuheben, kann es zweckmäßig sein, dem Stromtransformator 8 Wechsdwiderstände parallel zu schalten bzw. die Stellung der Wicklung 7 im Raume zu ,ändern. Der direkte Antrieb des Ferlo;denumformers kann bekanntlich auch durch Anwendung .einer doppelt gespeisten Asynchromnaschine ersetzt werden.To the phase deviation resulting from the idle current of the asynchronous machine between the, flows of parts q. and 7, it may be useful to remove the Current transformer to connect 8 alternating resistors in parallel or the position of the Winding 7 in space to change. The direct drive of the ferrous converter can as is well known, also replaced by the use of a double-fed asynchronous machine will.

Claims (1)

PATENTANSPRÜCHE: r. Asynchronmaschine, kompensiert durch einen mechanisch vom Läufer der Asynchronmas,chine angetriebenen und hollektor!-seitig ans Netz angeschlossenen Periodenumformer mit Hilfswicklung im Stator, dadurch gekennzeichnet, daß diese Hüfswicklung .über einen zum Stator der asynchronen Vordermaschine in Reihe geschalteten Stromtransformator gespeist wird. z. Asynchronmaschine nach Anspruch i, dadurch gekennzeichnet, daß die Phasenübersetzung des Stromtransformators durch Wechselwiderstände veränderbar ist.PATENT CLAIMS: r. Asynchronous machine, compensated by a mechanical one from the rotor of the asynchronous machine, driven by the machine and connected to the network on the collector side Period converter with auxiliary winding in the stator, characterized in that this Auxiliary winding connected in series to the stator of the asynchronous front machine Current transformer is fed. z. Asynchronous machine according to claim i, characterized characterized in that the phase translation of the current transformer by alternating resistors is changeable.
DEM88224D Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator Expired DE461986C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM88224D DE461986C (en) Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM88224D DE461986C (en) Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator

Publications (1)

Publication Number Publication Date
DE461986C true DE461986C (en) 1928-07-02

Family

ID=7320958

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM88224D Expired DE461986C (en) Asynchronous machine, compensated by a period converter, mechanically driven by the rotor of the asynchronous machine and connected to the network on the collector side, with an auxiliary winding in the stator

Country Status (1)

Country Link
DE (1) DE461986C (en)

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