DE384239C - Regenerative braking circuit for single-phase series motors - Google Patents

Regenerative braking circuit for single-phase series motors

Info

Publication number
DE384239C
DE384239C DES51779D DES0051779D DE384239C DE 384239 C DE384239 C DE 384239C DE S51779 D DES51779 D DE S51779D DE S0051779 D DES0051779 D DE S0051779D DE 384239 C DE384239 C DE 384239C
Authority
DE
Germany
Prior art keywords
winding
excitation
transformer
regenerative braking
phase 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
DES51779D
Other languages
German (de)
Inventor
Heinrich Kaun
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
Original Assignee
Siemens Schuckertwerke AG
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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Priority to DES51779D priority Critical patent/DE384239C/en
Application granted granted Critical
Publication of DE384239C publication Critical patent/DE384239C/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)
  • Stopping Of Electric Motors (AREA)

Description

Nutzbremsscheltung für Einphssenreihenschlußmotoren. Um bei der Nutzbremsung von Einphasenreihenschlußmotoren Gleichstromselbsterregung zu vermeiden, hat man die Erregerwicklung dieser Motoren für den Generatorbetrieb von einem besonderen Transformator aus gespeist, wie in Abb. t dargestellt ist. Die Kompensationswicklung k und der Anker a des Reihenschlußmotors sind mit der Primärwicklung p ;des Erregertransformators t hintereinander geschaltet, dessen Sekundärwicklung s die Erregerwicklung e .des Motors speist.Regenerative braking circuit for single-phase series motors. In order to avoid DC self-excitation during regenerative braking of single-phase series motors, the excitation winding of these motors has been fed from a special transformer for generator operation, as shown in Fig. T. The compensation winding k and the armature a of the series motor are connected in series with the primary winding p; of the excitation transformer t , the secondary winding s of which feeds the excitation winding e. Of the motor.

Nach der Erfindung wird die Umschaltung des Motors vom Motorbetrieb .auf Generatorbetrieb für die Nutzbremsung dadurch wesentlich vereinfacht, daß man den von dem Erregertransformator erzeugten Erregerstrom der Erregerwicklung .des Motors unter Beitehaltung der für Motorbetrieb benutzten Schaltung dieser Wicklung aufdrückt.According to the invention, the switching of the engine from engine operation .On generator operation for regenerative braking significantly simplified by the fact that one the excitation current of the excitation winding generated by the excitation transformer .des Motor while maintaining the circuit of this winding used for motor operation pushes on.

Ein Ausführungsbeispiel ist in Abb. 2 dargestellt. Die Kompensationswicklung k, - der Anker a und die Ernegerwicklunä e sind dauernd hintereinander geschaltet. Mit ihnen in Reihe liegt die Primärwicklung des Erregertransformators, welche aber für Motorbetrieb durch den Umschalter u kurzgeschlossen wird. Die Sekundärwicklung s des Transformators ist dagegen mit einem Ende zwischen dein Anker und der Erregerwicklung des Motors dauernd angeschlossen und wird für den Generatorbetrieb parallel zur Erregerwicklung e gelegt, der sie in dieser Schaltung den Erregerstrom im entgegengesetzten Sinne des diese beim Motorbetrieb durchfließenden Stromes aufdrückt. Dabei wird die Sekundärwicklung außer von dem Erregerstrom. auch noch vom Ankerstrom durchflossen, der über den Umschalter u nun der Primärwicklung des Transformators zugeführt wird. Gleichzeitig dient die Sekundärwicklung s, deren induktiver und Ohmscher Widerstand geringer ist als der der Erregerwicklung, dazu, den durch remanenten Magnetismus erzeugten Gleichstrom von der Erregerwicklung abzulenken. Dieser erzeugt im Entstehen im Transformator einen Strom, der in der Erregerwicklung dem remanenten Magnetismus entgegenwirkt und damit eine weitere Entwicklung von selbsterregendem Gleichstrom unterdrückt.An exemplary embodiment is shown in FIG. The compensation winding k, - the armature a and the Ernegerwicklunä e are continuously connected in series. The primary winding of the excitation transformer is in series with them, but which one for motor operation is short-circuited by the changeover switch u. The secondary winding On the other hand, one end of the transformer is between your armature and the excitation winding of the motor and is used for generator operation in parallel with Excitation winding e placed, which they in this circuit the excitation current in the opposite The sense of the current flowing through it when the motor is running. It will the secondary winding apart from the excitation current. still flowed through by the armature current, which is now fed to the primary winding of the transformer via the changeover switch u. The secondary winding s, its inductive and ohmic resistance, serves at the same time is less than that of the excitation winding, in addition to that caused by remanent magnetism divert generated direct current from the excitation winding. This creates as it arises a current in the transformer, which is related to the remanent magnetism in the excitation winding counteracts and thus a further development of self-exciting direct current suppressed.

Im Gegensatz zu .den bisher bekannten Schaltungen ermöglicht die Erfindung, die Umschaltung vom Motorbetrieb zur Nutzbremsung mit Hilfe eines einfachen Umschalters zu bewirken.In contrast to the previously known circuits, the invention enables switching from motor operation to regenerative braking with the help of a simple switch to effect.

Claims (1)

T-ANSPRÜ H : PAT senz. N tzbremsschaltung für Einph reihenschlußmotoren, dadurch gekennzeichnet, daB der Erregerstrom durch Zuschaitung eines Reihenschlußtransformators in an sich'bekannter Weise umgekehrt wird, daß aber dabei .die Schaltung der Erregerwicklung unverändert bleibt. a. Schaltung nach Anspruch z, dadurch gekennzeichnet, daß durch einen einpoligen t'mschalter die dauernd hinter der Erregerwicklung liegende Primärwicklung des Erregertransformators während des Betriebs als Motor kurzgeschlossen, und während des Betriebs als Generator die mit einem Ende dauernd zwischen Anker und Erregerwicklung angeschlossene Sekundärwicklung des Transformators parallel zur Erregerwicklung gelegt wird. T-ANSPRÜ H: PAT senz. Power brake circuit for single-phase motors, characterized in that the excitation current is reversed in a manner known per se by connecting a series transformer, but the circuit of the excitation winding remains unchanged. a. Circuit according to Claim z, characterized in that the primary winding of the exciter transformer, which is permanently behind the exciter winding, is short-circuited during operation as a motor and the secondary winding of the transformer which is permanently connected at one end between the armature and exciter winding during operation as a generator is placed parallel to the excitation winding.
DES51779D 1919-12-17 1919-12-17 Regenerative braking circuit for single-phase series motors Expired DE384239C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES51779D DE384239C (en) 1919-12-17 1919-12-17 Regenerative braking circuit for single-phase series motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES51779D DE384239C (en) 1919-12-17 1919-12-17 Regenerative braking circuit for single-phase series motors

Publications (1)

Publication Number Publication Date
DE384239C true DE384239C (en) 1923-11-24

Family

ID=7488411

Family Applications (1)

Application Number Title Priority Date Filing Date
DES51779D Expired DE384239C (en) 1919-12-17 1919-12-17 Regenerative braking circuit for single-phase series motors

Country Status (1)

Country Link
DE (1) DE384239C (en)

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