DE477908C - Three-phase collector machine connected in cascade with a single-phase asynchronous machine - Google Patents

Three-phase collector machine connected in cascade with a single-phase asynchronous machine

Info

Publication number
DE477908C
DE477908C DEA52232D DEA0052232D DE477908C DE 477908 C DE477908 C DE 477908C DE A52232 D DEA52232 D DE A52232D DE A0052232 D DEA0052232 D DE A0052232D DE 477908 C DE477908 C DE 477908C
Authority
DE
Germany
Prior art keywords
phase
cascade
machine
winding
series
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
DEA52232D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA52232D priority Critical patent/DE477908C/en
Application granted granted Critical
Publication of DE477908C publication Critical patent/DE477908C/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)
  • Filters And Equalizers (AREA)

Description

Drehstromkollektormaschine, die mit einer Einphasenasynchronmaschine in Kaskade geschaltet ist Drehstromkollektormaschinen, die mit Einphasenasynchronmotoren in Kaskade geschaltet sind, werden von einem Strom durchflossen, den man als Zusammensetzung eines Stromes von Schlupffrequenz und eines solchen von nahezu doppelter Netzfrequenz betrachten kann. Damit der letztere die Stromwendung nicht stört, versieht man die Ständer solcher Maschinen mit einer Kompensationswicklung, welche das vom Kommutatorstrom erzeugte Feld vollkommen aufhebt. Nun ist es in manchen Fällen erforderlich, im Ständer außer der Kompensationswicklung eine vom Kommutatorstrom durchflossene dreiphasige Zusatzwicklung einzubauen, z. B. um Pendelungen zu vermeiden. Die in dieser Wicklung fließende Stromkomponente von etwa doppelter Netzfrequenz stört nun aber ebenfalls die Stromwendung.Three-phase collector machine that works with a single-phase asynchronous machine Connected in cascade is three-phase collector machines with single-phase asynchronous motors Connected in cascade, a current flows through it, which is called the composition a current of slip frequency and one of almost double the network frequency can look at. So that the latter does not interfere with the commutation, it is provided Stand of such machines with a compensation winding, which the commutator current generated field completely cancels. Now in some cases it is necessary to use the In addition to the compensation winding, stator has a three-phase commutator current flowing through it To install additional winding, e.g. B. to avoid swings. The ones in this winding However, flowing current components of roughly twice the network frequency are now also disturbing the turn of the river.

Erfindungsgemäß wird daher dieser Wicklung ein induktionsfreier Widerstand parallel geschaltet, der von der schlupffrequenten Stromkomponente, die sich auf die beiden parallelen Stromzweige nahezu im Verhältnis der Ohmschen Widerstände verteilt, nur einen verhältnismäßig kleinen Teil aufnimmt. Für die Stromkomponente von nahezu doppelter Netzfrequenz ist der induktive Widerstand der beiden Stromzweige von weit größerem Einfluß als ihr Ohmscher Widerstand. Sie fließt daher zum größten Teil durch den parallel geschalteten und induktionsfreien Widerstand und kann alsdann die Stromwendung nicht mehr in nennenswerter Weise stören. Abb. I zeigt ein Ausführungsbeispiel der Erfindung. v ist der Vordermotor, h die in Kaskade geschaltete Drehstromkollektormaschine, die von der durch einen Motor m angetriebenen Synchronmaschine g mit Netzfrequenz erregt wird. Sie besitzt zwei vom Kommutatorstrom durchflossene Ständerwicklungen, die dreiphasige Kompensationswicklung w und die dreiphasige Zusatzwicklung d. Zur letzteren ist der dreiphasige induktionsfreie Widerstand s parallel geschaltet. Air Verstärkung der Wirkung kann, wie Abb. 2 zeigt, zu d eine Drosselspule p und zu s ein Kondensator k in Reihe geschaltet werden.According to the invention, this winding therefore becomes an induction-free resistor connected in parallel, that of the slip-frequency current component that is based on the two parallel branches almost in the ratio of the ohmic resistances distributed, takes up only a relatively small part. For the power component The inductive resistance of the two current branches is almost twice the mains frequency of far greater influence than its ohmic resistance. It therefore flows to the largest Part by the parallel-connected and induction-free resistor and can then no longer disturb the commutation in a noteworthy way. Fig. I shows an embodiment the invention. v is the front motor, h is the three-phase collector machine connected in cascade, that of the synchronous machine g driven by a motor m with mains frequency is excited. It has two stator windings through which the commutator current flows, the three-phase compensation winding w and the three-phase additional winding d. To the the three-phase induction-free resistor s is connected in parallel to the latter. Air amplification of the effect can, as Fig. 2 shows, to d a choke coil p and to s a capacitor k can be connected in series.

Claims (2)

PATENTANSPRÜCHE: I. Drehstromkollektormaschine, die mit einer Einphasenasynchronmaschine in Kaskade geschaltet ist und im Ständer außer der vom Kommutatorstrom durchflossenen Kompensationswicklung noch eine mit dieser in Reihe liegende Zusatzwicklung besitzt, dadurch gekennzeichnet, daß der letzteren ein induktionsfreier Widerstand parallel geschaltet ist. PATENT CLAIMS: I. Three-phase collector machine that works with a single-phase asynchronous machine is connected in cascade and in the stator except for the commutator current flowing through it Compensation winding still has an additional winding in series with it, characterized in that the latter has a non-inductive resistor in parallel is switched. 2. Drehstromkollektormaschinenach₧ Anspruch I, dadurch gekennzeichnet, daß eine Drosselspule in Reihe mit der Zusatzwicklung geschaltet ist. 3.yDrehstromkollektormaschinenach Anspruch i oder 2, dadurch gekennzeichnet, daß ein Kondensator in Reihe mit dein zur Zusatzwicklung parallel liegenden induktionsfreien Widerstand geschaltet ist.2. Three-phase collector machine according to ₧ claim I, characterized in that that a choke coil is connected in series with the auxiliary winding. 3.y three-phase collector machine according to Claim i or 2, characterized in that a capacitor is in series with your is connected to the additional winding parallel inductive resistor.
DEA52232D Three-phase collector machine connected in cascade with a single-phase asynchronous machine Expired DE477908C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA52232D DE477908C (en) Three-phase collector machine connected in cascade with a single-phase asynchronous machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA52232D DE477908C (en) Three-phase collector machine connected in cascade with a single-phase asynchronous machine

Publications (1)

Publication Number Publication Date
DE477908C true DE477908C (en) 1929-06-15

Family

ID=6938371

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA52232D Expired DE477908C (en) Three-phase collector machine connected in cascade with a single-phase asynchronous machine

Country Status (1)

Country Link
DE (1) DE477908C (en)

Similar Documents

Publication Publication Date Title
DE477908C (en) Three-phase collector machine connected in cascade with a single-phase asynchronous machine
DE468953C (en) Single-phase asynchronous motor with three-phase exciter without compensation winding
DE598544C (en) Device for connecting multi-phase induction motors, in which a phase winding is preceded by a capacitor, to a single-phase network
DE452073C (en) Three-phase collector machine with or without compensation winding in the stand
DE498524C (en) DC exciter for synchronizing single-phase induction motors
DE675139C (en) Arrangement for the suppression of harmonics in the secondary circuit of three-phase shunt collector motors
DE611617C (en) Single-phase induction motor for connection to various mains voltages
DE471182C (en) Multi-phase commutator machine with a winding housed in the stand and powered by induction from the armature
DE514236C (en) Arrangement for starting and operating synchronized asynchronous motors with a chained biaxial winding of the induced part, in which the chaining point of the winding is connected to an equipotential point of the DC exciter circuit
DE514908C (en) Cascade, consisting of a single-phase asynchronous machine and a commutator rear machine
DE410254C (en) Asynchronous motor for synchronous operation
DE383691C (en) Pole changing for multi-phase induction motors
DE478041C (en) Switching arrangement for even load distribution on mechanically coupled asynchronous motors
DE559188C (en) Switching arrangement for achieving a constant speed in a single-phase AC commutator motor
AT117372B (en) Regenerative braking circuit for single-phase collector motors.
DE580065C (en) Arrangement in commutator rear machines, which are switched on in the secondary circuit of asynchronous machines, in particular for the purpose of phase compensation
DE622972C (en) Device for keeping the voltage of AC machines constant
DE498441C (en) Arrangement to suppress the self-excitation with low frequency or direct current in single or multi-phase series collector machines fed with mains frequency
DE660035C (en) Arrangement to increase the remanence field of synchronous motors with permanent magnet steel rotor
DE761083C (en) Arrangement for regenerative braking of AC vehicles
DE445057C (en) Rotating rectifier
DE504012C (en) Three-phase collector machine that is connected in cascade with an asynchronous motor for the purpose of reactive power control
DE956430C (en) Double-wound motor for single-phase AC operation
DE714860C (en) Circuit for DC braking of two three-phase motors
AT121706B (en) Single-phase motor with an upstream capacitor.