DE386705C - Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase - Google Patents

Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase

Info

Publication number
DE386705C
DE386705C DEA37639D DEA0037639D DE386705C DE 386705 C DE386705 C DE 386705C DE A37639 D DEA37639 D DE A37639D DE A0037639 D DEA0037639 D DE A0037639D DE 386705 C DE386705 C DE 386705C
Authority
DE
Germany
Prior art keywords
phase
auxiliary
motors
manner
regenerative braking
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
DEA37639D
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA37639D priority Critical patent/DE386705C/en
Application granted granted Critical
Publication of DE386705C publication Critical patent/DE386705C/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Description

Einrichtung zum Nutzbremsen von Einphasenreihenschlußmotoren in Verbindung mit nach Art von Einphaseninduktionsmotoren mit Hilfsphase ausgebildeten Erregerphasenumformern. Um einen EinphasenreihenschluBmotor als Generator auf das Netz zurückarbeiten zu lassen und für diesen Betrieb richtig zu erregen, kann man einen Phasenumformer verwenden, welcher nach Art eines Einphaseninduktionsmotors mit Hilfsphasen ausgebildet ist. Die Spannung an der zur Hauptphase des Umformers räumlich senkrechten Hilfsphase ist beim Lauf des Umformers nahezu um go° elektrisch gegen die an der Hauptphase liegenden Netz-Spannung verschoben. Verwendet man diese Hilfsphasenspannung zur Erregung des Motorfeldes, so steht dieses, da der Erregerstrom nahezu rein induktiv ist, wieder zeitlich senkrecht auf der Hilfsphasenspannung, ist also in Phase oder vielmehr in Gegenphase zur Netz-Spannung und somit zur richtigen Erregung des ReihenschluBmotors bei der Nutzbremsung geeignet. An sich ist diese Anordnung bekannt und sie hat sich auch bewährt, wenn man den im Generator bei Belastung auftretenden Spannungsabfall durch einen Kompoundtransformator kompensiert. Dies geschieht in der Art, daß man die Primärwicklung des Kompoundtransformators mit dem Belastungstrom des Generators speist und die Sekundärwicklung des Kompoundtransformators in den Erregerkreis des Generators einfügt. Die an der Sekundärwicklung auftretende, dem Belastungsstrom proportionale Spannung addiert sich dann zur Spannung der H.lfsphasen und bewirkt die Kompensation des Spannungsabfalles. Diese Einrichtung hat aber noch den Nachteil, daß der Phasenumformer zu seinem Anlauf Hilfsapparate erfordert, welche den ohnehin eng begrenzten Raum auf der Lokomotive füllen und das Gewicht des Triebwagens erhöhen. In vielen Fällen scheitert die Verwendung an sich vorteilhafter Einrichtungen beim Bahnbetrieb durch ihren Raumbedarf und die Gewichtsvermehrung, welche sie bedingen. Im vorliegenden Falle stellt daher jede Ersparnis an Apparaten einen wesentlichen Fortschritt dar, und die dadurch erzielte Vereinfachung der Schaltung erhöht auch die Betriebsicherheit der Lokomotive.Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase. To use a single-phase series motor as a generator to work back on the grid and to excite properly for this operation, one can use a phase converter use, which is designed in the manner of a single-phase induction motor with auxiliary phases is. The voltage at the auxiliary phase, which is spatially perpendicular to the main phase of the converter is electrical compared to that of the main phase by almost go ° when the converter is running lying mains voltage shifted. If you use this auxiliary phase voltage for Excitation of the motor field, this is because the excitation current is almost purely inductive is, again in time perpendicular to the auxiliary phase voltage, is therefore in phase or rather in phase opposition to the mains voltage and thus to the correct excitation of the series motor suitable for regenerative braking. This arrangement is known per se and it has become also proven if you have the occurring in the generator under load Voltage drop compensated by a compound transformer. This is done in of the kind that the primary winding of the compound transformer with the load current of the generator and feeds the secondary winding of the compound transformer into the The exciter circuit of the generator inserts. The occurring on the secondary winding, the The voltage proportional to the load current is then added to the voltage of the auxiliary phases and compensates for the voltage drop. But this facility still has the disadvantage that the phase converter requires auxiliary equipment to start up, which fill the already narrow space on the locomotive and the weight of the railcar raise. In many cases, the use of facilities that are advantageous per se fails in rail operations by their space requirements and the increase in weight that they cause. In the present case, therefore, every saving in equipment represents an essential one And the resulting simplification of the circuit also increases the operational safety of the locomotive.

Die Erfindung betrifft nun eine Einrichtung zum Nutzbremsen von Einphasenreihenschlußmotoren in Verbindung mit nach Art von Einphaseninduktionsmotoren mit Hilfsphase ausgebildeten Erregerphasenumformern, bei welcher der Anker- und Erregerstrom des Reihenschlußmotors mittels eines Kompoundtransformators induktiv gekoppelt sind, und besteht darin, daß zur Ersparung eines besonderen Anlaßwiderstandes für den Phasenumformer die Wicklungen des Kompoundtransformators als Hilfsdrosselspulen zum Anlassen des Phasenumformers geschaltet werden.The invention now relates to a device for regenerative braking of single-phase series motors in connection with designed in the manner of single-phase induction motors with auxiliary phase Excitation phase converters, in which the armature and excitation current of the series motor are inductively coupled by means of a compound transformer, and consists of that to save a special starting resistor for the phase converter Windings of the compound transformer as auxiliary reactors for starting the phase converter be switched.

In dem Schaltbild bedeutet T die Sekundärwicklung des Haupttransformators zur Speisung des Reihenschlußmotors 11, welcher hier in derjenigen Schaltung dargestellt ist, welche er zum Nutzbremsen erhält. A ist sein Anker, C die Kompensationswicklung, Il' die Wendepolwicklung, zu der in Reihe der Widerstand R1 und parallel die Drosselspule D liegt. Diese besondere Schaltung des Wendepolstromkreises dient zur Erzeugung eines Wendefeldes richtiger Größe und Phase beim Betric be des Motors als Generator. F ist die Feldwicklung des Motors, welche zum Umschalter U führt. P ist der Phasenumformer, dessen Läufer L nach Art eines Käfigankers ausgebildet ist. Seine als geschlossene Gleichstromwicklung ausgeführte Statorwicklung S ist in zwei zueinander senkrechten Achsen stromführend. An zwei diametrale Punkte 1, 2 der einen Achse dieser Wicklung ist (über die Widerstände R. und R;) die Netz: pannung gelegt, während an den beiden diametralen Punkten 3, 4 in der zur ersten senkrechten Achse die Erregerspannung für die Wicklung F abgenommen wird. Die Punkte und 4 sind nun aber nicht unmittelbar mit den Enden der Wicklung F verbunden, sondern über die Wicklungen E und G des Kompoundtransformators K, während die beiden anderen Spulen J und N dieses Transformators vom Hauptstrom des Motors 31durchflor-sen werden. Durch den Umschalter U sind nun die Widerstände R2 und R3 kurz--chließbar und die Spulen des Kompoundtransformators befinden sich in der einen Stellung des Umschalters unter sich in Reihew chaltung und sind d.abf--i nach Art einer Anlaßdrosselspule mit der Hilfsphase 3, 4 verbunden, welche hierbei ebenfalls vom Netz (Sekrndärwicklung T) Strom erhält. Diese Verbindungen bestehen in der gezeichneten Stellung des Umschalters (Hebe1.H nach links in die Stellung A gestellt), in welcher auch die Widerstände R2 und. R, wirksam sind, so daß in den Stromkreis der Hauptphase Widerstand, in den Stromkreis der Hilfsphase Selbstinduktion (die vier Spulen des Kompoundtransformators) eingeschaltet ist. Diese Hebelstellung des Umschalters ist die Anlaßstellung. Der Phasenumformer läuft somit unter Verwendung der vorhandenen Einrichtungen und ohne Einbau einer besonderen Anlaßdrosselspule an. Ist der Phasenumformer auf Touren gekommen, dann wird der Hebel H des Umschalters U nach rechts gestellt. Damit werden die Widerstände R, und R, kurzgeschlossen und die mit der Hilfsphase verbundenen Spulen E und G des Kompoundtransformators mit den freien Enden der Wicklung F verbunden, während die Spulen J und N des Kompoundtransformators in Reihe zum Anker des Motors 1'1f geschaltet werden. Die Stellung B des Umschalters ergibt somit die Betriebschaltung der Einrichtung.In the circuit diagram, T means the secondary winding of the main transformer for supplying the series motor 11, which is shown here in the circuit which it receives for regenerative braking. A is its armature, C the compensation winding, Il 'the reversing pole winding, to which the resistor R1 is in series and the choke coil D is in parallel. This special circuit of the reversing pole circuit is used to generate a reversing field of the correct size and phase when the motor is operated as a generator. F is the field winding of the motor, which leads to changeover switch U. P is the phase converter, the rotor L of which is designed in the manner of a cage armature. Its stator winding S, designed as a closed direct current winding, carries current in two mutually perpendicular axes. The mains voltage is applied to two diametrical points 1, 2 of one axis of this winding (via resistors R. and R;), while the excitation voltage for winding F is applied to the two diametrical points 3, 4 in the axis perpendicular to the first axis is removed. Points 4 and 4 are not directly connected to the ends of winding F, but via windings E and G of compound transformer K, while the main current of motor 31 flows through the two other coils J and N of this transformer. The resistors R2 and R3 can now be short-circuited by the changeover switch U and the coils of the compound transformer are in one position of the changeover switch in series and are d.abf-i in the manner of a starting choke coil with the auxiliary phase 3, 4 connected, which here also receives power from the network (secondary winding T). These connections exist in the position shown of the switch (Hebe1.H set to the left in position A), in which the resistors R2 and. R, are effective, so that resistance is switched on in the circuit of the main phase, and self-induction (the four coils of the compound transformer) in the circuit of the auxiliary phase. This lever position of the switch is the starting position. The phase converter thus starts up using the existing equipment and without installing a special starting choke coil. If the phase converter has revved up, then the lever H of the switch U is turned to the right. The resistors R, and R, are short-circuited and the coils E and G of the compound transformer connected to the auxiliary phase are connected to the free ends of the winding F, while the coils J and N of the compound transformer are connected in series to the armature of the motor 1'1f . The position B of the switch thus results in the operating circuit of the device.

Claims (1)

PATENT-ANSPRUcH: Einrichtung zum Nutzbremsen von Einphasenreihenschlußmotoren in Verbindung m_t nach Art von Einphaseninduktionsmotoren mit Hilfsphase ausgebildeten Erregerphasenumformern, bei welcher der Anker- und Erregerstrom des Reihenschlußmotors mittels eines Kompoundtransformators induktiv gekoppelt sind, dadurch gekennzeichnet, daß zur Ersparung eines besonderen Anlaßwiderstandes für den Phasenumformer die Wicklungen des Kompoundtransformators als Hilfsdrosselspule zum Anlassen des Phasenumformers verwendet werden.PATENT CLAIM: Device for regenerative braking of single-phase series motors in connection m_t trained in the manner of single-phase induction motors with auxiliary phase Excitation phase converters, in which the armature and excitation current of the series motor are inductively coupled by means of a compound transformer, characterized in that that to save a special starting resistor for the phase converter Windings of the compound transformer as an auxiliary choke coil for starting the phase converter be used.
DEA37639D 1922-05-04 1922-05-04 Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase Expired DE386705C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA37639D DE386705C (en) 1922-05-04 1922-05-04 Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA37639D DE386705C (en) 1922-05-04 1922-05-04 Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase

Publications (1)

Publication Number Publication Date
DE386705C true DE386705C (en) 1923-12-14

Family

ID=6930333

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA37639D Expired DE386705C (en) 1922-05-04 1922-05-04 Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase

Country Status (1)

Country Link
DE (1) DE386705C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765105C (en) * 1938-06-30 1954-05-24 Aeg Device for phase compensation in single-phase traction vehicles in driving and regenerative braking mode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765105C (en) * 1938-06-30 1954-05-24 Aeg Device for phase compensation in single-phase traction vehicles in driving and regenerative braking mode

Similar Documents

Publication Publication Date Title
DE386705C (en) Device for regenerative braking of single-phase series motors in connection with exciter phase converters designed in the manner of single-phase induction motors with auxiliary phase
DE655451C (en) Arrangement for converters, especially for supplying AC motors and AC networks
DE644406C (en) Arrangement to achieve a series connection characteristic in valve-controlled motors in synchronous machine design
DE444049C (en) Device for route control of electric motors
DE379526C (en) Procedure to prevent interference caused by multi-phase resonance currents of the fifth or one higher harmonic occurring in capacitively loaded networks
DE714860C (en) Circuit for DC braking of two three-phase motors
DE489709C (en) Device for improving the power factor in regenerative braking of AC series machines
DE895194C (en) AC shunt motor with capacitive resistance switched into the secondary circuit via a transformer
DE935201C (en) Device to improve the commutation of DC series motors
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
DE622232C (en) Rotating frequency and phase number converter
DE941675C (en) Device for controlling the speed of an electric motor
DE670256C (en) Device for extensive control of the welding current strength of direct current cross-field machines
DE751106C (en) Regenerative braking circuit for AC vehicles
DE928055C (en) Device for eliminating remanence in DC machines of the Metadyne type
DE462878C (en) Arrangement for influencing the speed characteristics of asynchronous machines, which are exposed to strong impact loads, with a three-phase exciter and ohmic resistances in the main slip circuits
DE644781C (en) Motor without commutator, powered by grid-controlled vapor or gas discharge paths from an alternating current source
DE745574C (en) Arrangement for regulating an electrical generator, in particular a direct current generator
AT239384B (en) DC-AC converter with adjustable frequency
DE904711C (en) Speed control for internal combustion engine test stands
DE578124C (en) Method for welding by means of a direct current arc from a multi-phase alternating current network
AT130533B (en) Line protection by means of high frequency current.
DE571395C (en) Installation on AC series motors that are operated with regenerative braking
DE944505C (en) Forming arrangement
DE211518C (en)