AT131512B - Device for improving the stability of parallel running alternating current generators by means of high-speed excitation. - Google Patents

Device for improving the stability of parallel running alternating current generators by means of high-speed excitation.

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Publication number
AT131512B
AT131512B AT131512DA AT131512B AT 131512 B AT131512 B AT 131512B AT 131512D A AT131512D A AT 131512DA AT 131512 B AT131512 B AT 131512B
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AT
Austria
Prior art keywords
stability
improving
alternating current
current generators
parallel running
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bbc Ag Oesterr
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 Ag Oesterr filed Critical Bbc Ag Oesterr
Application granted granted Critical
Publication of AT131512B publication Critical patent/AT131512B/en

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Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
   ellrone   Parallelbetrieb zwischen verschiedenen Kraftwerken durch Spannungssenkungen gefährdet wird.   Uni   das Aussertrittfallen einzelner   Kraftwerke   bzw. einzelner Generatoren oder Synchronkoinpensatoren zu verhüten, ist es zweckmässig, ihre   Erregung   nach dem Auftreten der erwähnten   Spannungssenkung   
 EMI1.3 
 werken bzw. Generatoren möglichst   zn   erhöhen. 



   Es ist ferner schon bekannt. die Erregungszeit von Magnetsystemen (z. B. der   Feldwicklung   eines Generators) dadurch   abzukiirzen,   dass die beim Anschalten einer mit Selbstinduktion behafteten   Wicklung   an eine Gleichstromquelle oder die beim Abschalten dieser Wicklung auftretende Änderung der Stromstärke zur Erzeugung einer zusätzlichen elektromotorischen Kraft benutzt wird. welche im Sinne einer Beschleunigung der Erregung des zu   erregenden Magnetsystems wirkt. Fnd zwar wird als   mit Selbst- 
 EMI1.4 
 formators benutzt, dessen   Sekundärwicklung   in Reihe mit der zu erregenden Wicklung oder einem Teil dieser Wicklung liegt. 



   Gegenstand der Erfindung ist eine Vorrichtung zur Verbesserung der Stabilität parallellaufender Wechselstromgeneratoren mittels einer   Schnellerregung   der eben besprochenen. Art. bei welcher erfindungsgemäss die bei Störung der Stabilität im Erregerkreis der Generatoren auftretenden zusätzlichen Ströme   unmittelbar   (d. h. ohne Zwischenschaltung von Reglern oder ähnlichen Hilfsorganen) dazu verwendet werden, die elektromotorische Kraft der Haupterregermaschine um einen   Betrag zu erhöhen, der gleich   oder grösser ist als der zusätzliche ohmsche Spannungsabfall im Haupterregerkreis der Wechselstromgeneratoren. 



   Erfindungsgemäss ist die   Erregermaschine   mit   einer Hilfserregerwicklung verseilen, welche mit dem   Hauptenegerkreis so gekoppelt ist. dass bei jeder Stromzunahme im Haupterregerkreis die Hilfserregerwicklung eine Vergrösserung der   EMK hervorruft.   
 EMI1.5 
 kreise kann entweder, wie dargestellt, mittels eines Transformators c oder aber über einen Shunt unter Verwendung eines   induktiven   Widerstandes (Drosselspule) erfolgen. Die Zeitkonstante des mit dem Haupterregerkreis gekoppelten Hilfserregerkreises wird zweckmässig so gewählt, dass die bei einer Störung auf- 
 EMI1.6 
 

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



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
   parallel operation between different power plants is endangered by voltage drops. To prevent individual power plants or individual generators or Synchronkoinpensatoren from stepping out, it is advisable to keep them excited after the aforementioned voltage drop has occurred
 EMI1.3
 Increase plants or generators as much as possible.



   It is also known. The excitation time of magnet systems (e.g. the field winding of a generator) can be shortened by using the change in current intensity that occurs when a self-induction winding is switched on to a direct current source or when this winding is switched off to generate an additional electromotive force. which acts to accelerate the excitation of the magnet system to be excited. And although it is considered with self-
 EMI1.4
 formator is used whose secondary winding is in series with the winding to be excited or part of this winding.



   The invention relates to a device for improving the stability of alternating current generators running in parallel by means of rapid excitation of the type just discussed. Art. In which, according to the invention, the additional currents occurring when the stability in the excitation circuit of the generators is disturbed are used directly (ie without the interposition of regulators or similar auxiliary organs) to increase the electromotive force of the main exciter by an amount that is equal to or greater than additional ohmic voltage drop in the main excitation circuit of the alternators.



   According to the invention, the exciter machine is stranded with an auxiliary exciter winding, which is thus coupled to the main exciter circuit. that with every increase in current in the main excitation circuit, the auxiliary excitation winding causes an increase in the EMF.
 EMI1.5
 Circuits can be done either, as shown, by means of a transformer c or via a shunt using an inductive resistor (choke coil). The time constant of the auxiliary excitation circuit coupled with the main excitation circuit is expediently chosen so that the
 EMI1.6
 

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

Claims (1)

<Desc/Clms Page number 2> EMI2.1 kreis des Wechselstromgenerators derart gekoppelt ist, dass bei jeder Stromzunahme im Haupterregerkreis die Hiifserregerwicklung eine Vergrösserung der elektromotorischen Kraft hervorruft. <Desc / Clms Page number 2> EMI2.1 circuit of the alternator is coupled in such a way that with every increase in current in the main excitation circuit, the auxiliary excitation winding causes an increase in the electromotive force. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Zeitkonstante des mit dem EMI2.2 EMI2.3 3. Apparatus according to claim 2, characterized in that the time constant of the EMI2.2 EMI2.3
AT131512D 1931-08-17 1931-08-17 Device for improving the stability of parallel running alternating current generators by means of high-speed excitation. AT131512B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT131512T 1931-08-17

Publications (1)

Publication Number Publication Date
AT131512B true AT131512B (en) 1933-01-25

Family

ID=29274527

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131512D AT131512B (en) 1931-08-17 1931-08-17 Device for improving the stability of parallel running alternating current generators by means of high-speed excitation.

Country Status (1)

Country Link
AT (1) AT131512B (en)

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