AT131530B - Valve controlled commutatorless motor. - Google Patents

Valve controlled commutatorless motor.

Info

Publication number
AT131530B
AT131530B AT131530DA AT131530B AT 131530 B AT131530 B AT 131530B AT 131530D A AT131530D A AT 131530DA AT 131530 B AT131530 B AT 131530B
Authority
AT
Austria
Prior art keywords
valve
motor
valve controlled
commutatorless motor
voltage
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of AT131530B publication Critical patent/AT131530B/en

Links

Landscapes

  • Dc Machiner (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Ventilgesteuerter   kommutatorloser   Motor. 



   Es sind ventilgesteuerte   komnmtatorlose Motoren bekannt, welehe von einem Gleichstromnetz   oder von einem Weehselstromnetz gespeist werden können. Im ersten Fall wird zum Anlassen des Motors eine zusätzliche Einrichtung   benötigt.   da die Ventile bei stillstehendem Motor nicht ohne weiteres steuerfähig sind. Es ist ferner bekannt, den ventilgesteuerten Motren Serie- oder Nebenschlusscharakteristik zu geben, je nachdem die Erregung der Feldwicklllng vom Motorstrom oder von einer Spannung abhängig gemacht wird. Bei spannungsabhängiger Erregung der Feldwicklung kann die Spannung einer 
 EMI1.1 
 von einem Wechselstromnetz gespeist werden, ist in letzterem Falle eine besondere Hilfsapparatur erforderlich, die zum Umformen der Wechselspannung in Gleichspannung dient.

   Handelt es sich   um   einen an einem Gleichstromnetz liegenden Motor, so ist bei den gewöhnlich verwendeten hohen Gleichspannungen eine weitgehende Spannungsteilung erforderlich, um die Feldwicklung von der Gleichspannung aus zu speisen. 



   Die Erfindung bezweckt nun. die Notwendigkeit einer besonderen Hilfsapparatur für die   spannungs-   abhängige Erregung zu umgehen, indem erfindungsgemäss der für die Erregung des Ventils erforderliche Gleichstrom zugleich zur Erregung der Feldwicklung des Motors verwendet wird. 



   In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Der ventilgesteuerte Motor 1 besitzt zwei im Stator   untergebrachte Arbeitswicklungen , welche über einen Trans-   
 EMI1.2 
 ringe 4 vom Erregergleiehstrom des Ventils   5   gespeist wird. Die einzelnen Phasen der Arbeitswicklungen 2 sind mit den Anoden des Ventils 5 verbunden. Zur Steuerung   der Anodengitter   dient die Batterie 6, welche den Gittern   nacheinander   über die auf der Rotorwelle aufgekeilte Bürste des Verteilers 7 positive Potentiale aufdrückt. Über die Widerstände 8 werden diejenigen Gitter. deren Lamellen des Verteilers 7 mit der Bürste nicht in Kontakt stehen, gegenüber der Kathode negativ aufgeladen.

   Die   Primärwicklung   des Erregertransformators 9 wird vom selben Transformator 11 gespeist wie der Motor. Der Widerstand dient zum Einstellen des Erregerstromes für die Feldwicklung 3 und damit zur Drehzahlregulierung. 



  Die Erregerelektroden des Ventils können ebenso wie die Hauptanoden mit Gittern ausgerüstet werden. die elektrisch gesteuert werden. Für die Erregung mit Wechselstrom müssen zwei Erregerelektroden vorhanden sein. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Valve controlled commutatorless motor.



   There are valve-controlled komnmtatorlose motors known welehe can be fed from a direct current network or from an alternating current network. In the first case, an additional device is required to start the engine. because the valves are not easily controllable when the engine is at a standstill. It is also known to give the valve-controlled motors series or shunt characteristics, depending on whether the excitation of the field winding is made dependent on the motor current or on a voltage. With voltage-dependent excitation of the field winding, the voltage of a
 EMI1.1
 are fed by an alternating current network, special auxiliary equipment is required in the latter case, which is used to convert the alternating voltage into direct voltage.

   If the motor is connected to a direct current network, the high direct voltages normally used require extensive voltage division in order to feed the field winding from the direct voltage.



   The invention now aims. to avoid the need for special auxiliary equipment for the voltage-dependent excitation, in that, according to the invention, the direct current required to excite the valve is used at the same time to excite the field winding of the motor.



   An exemplary embodiment of the invention is shown schematically in the drawing. The valve-controlled motor 1 has two working windings housed in the stator, which are
 EMI1.2
 rings 4 is fed by the exciter traction current of the valve 5. The individual phases of the work windings 2 are connected to the anodes of the valve 5. The battery 6 is used to control the anode grids and applies positive potentials to the grids one after the other via the brush of the distributor 7 wedged onto the rotor shaft. About the resistors 8 those grids. whose lamellae of the distributor 7 are not in contact with the brush, negatively charged with respect to the cathode.

   The primary winding of the excitation transformer 9 is fed by the same transformer 11 as the motor. The resistor is used to set the excitation current for the field winding 3 and thus to regulate the speed.



  The excitation electrodes of the valve, like the main anodes, can be equipped with grids. which are controlled electrically. Two excitation electrodes must be present for excitation with alternating current.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Ventilgesteuerter kommutatorloser Motor, dadm'ch gekennzeichnet, dass der für die Erregung des Ventils erforderliche Gleichstrom gleichzeitig zur Erregung der Feldwicklung des Motors verwendet wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Valve-controlled commutatorless motor, characterized by the fact that the direct current required to excite the valve is used to excite the field winding of the motor. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT131530D 1931-02-23 1932-02-18 Valve controlled commutatorless motor. AT131530B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE131530X 1931-02-23

Publications (1)

Publication Number Publication Date
AT131530B true AT131530B (en) 1933-01-25

Family

ID=29277678

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131530D AT131530B (en) 1931-02-23 1932-02-18 Valve controlled commutatorless motor.

Country Status (1)

Country Link
AT (1) AT131530B (en)

Similar Documents

Publication Publication Date Title
AT131530B (en) Valve controlled commutatorless motor.
AT115997B (en) Device for the automatic control of large electrical machines using a small controller.
DE654662C (en) Small electric machine
DE656155C (en) Repulsion motor controlled by discharge paths with clear current flow direction
CH161407A (en) Valve controlled commutatorless motor.
DE665201C (en) Arrangement to ensure the synchronization of motors connected to a single-phase network that work on the principle of a repulsion motor
DE349978C (en) Arrangement for controlling an electrical machine by means of a vacuum tube
AT116003B (en) Synchronously rotating rectifier.
DE524163C (en) Device for starting asynchronous three-phase motors using an asynchronous starting motor
DE500532C (en) Commutation control method for AC collector motors provided with reversing poles for driving work machines whose torque falls with decreasing speed
DE670619C (en) Device for achieving compounding or counter-compounding in direct current machines with reversing poles
DE432807C (en) Arrangement for stabilizing self-excited dynamo machines with shunt resistance control and additional external excitation
AT118952B (en) Device for self-exciting synchronous alternating current machines.
DE615191C (en) Adjustable electric motor to drive a spinning machine drum
DE476808C (en) Synchronously rotating rectifier
DE515765C (en) Device for quickly starting, stopping and reversing electrical DC machines
DE907795C (en) Power brake control
DE524021C (en) Control device for asynchronous motors for calender drive
AT120331B (en) Device for commutating currents in a multi-phase winding.
DE580293C (en) Device for compensating asynchronous motors
AT98127B (en) Arrangement for switching off circuits with self-induction.
AT46412B (en) Starting device for alternating current collector motors.
DE635383C (en) Machine connected to a single-phase network that works on the principle of a repulsion motor
AT43613B (en) Device for regulating alternating current collector machines with shunt or external excitation.
DE961187C (en) Self-excited compounded alternator