AT47884B - Device for the excitation and regulation of alternating current commutator machines. - Google Patents
Device for the excitation and regulation of alternating current commutator machines.Info
- Publication number
- AT47884B AT47884B AT47884DA AT47884B AT 47884 B AT47884 B AT 47884B AT 47884D A AT47884D A AT 47884DA AT 47884 B AT47884 B AT 47884B
- Authority
- AT
- Austria
- Prior art keywords
- excitation
- regulation
- alternating current
- current commutator
- commutator machines
- Prior art date
Links
- 230000005284 excitation Effects 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Description
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bürsten oder durch Kommutierungsspulen den v-fach grösseren Wert, als bei sinusförmiger Verteilung vorhanden wäre,
wobei unter v das Verhältnis zwischen der an den Erregerbürsten tatsächlich vorhandenen Feldstärke zu derjenigen bei sinusförmiger Feldverteilung zu verstehen ist, so wird die unter den Erregerbürsten kurzgeschlossene EMK proportional k-v. Die Fig. 13 zeigt noch den Verlauf für v = o und zwei zwischen 0 und 1 liegende Werte von t. Die bereits angeführte unterste Gerade entspricht dem Wert v = 1..
Wie man sieht, ist es auf diese Weise möglich, die Kurzschluss-EMK unter den Erregerbürsten auch dann beliebig zu vermindern, wenn den Arbeitsbürsten Spannung aufgedrückt wird.
PATENT-ANSPRÜCHE :
1. Einrichtung nach Patent Nr. 25879 zur Erregung und Regelung von ausschliesslich oder zum Teil durch den Anker erregten Wechselstromkommutatormaschinen in unmittelbarer oder induktiv vermittelter, gegebenenfalls für verschiedene Arbeitszustände wechselnder Reihenschluss-, Nebenschluss-, Kompound- oder Doppelschlussschaltung, dadurch gekennzeichnet, dass die gesamte Arbeitsspannung auf die von aussen gespeiste Ständer-und Läuferarbeitswicklung unter Berücksichtigung des vom Werte 1 abweichenden effektiven Windungsverhältnisses für jedenArbeitszustand so verteilt wird, dass-bezogen auf das Übersetzungsverhältnis 1 :
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samten Arbeitsspannung verhält wie das Quadrat der Periodfnzahl zum Quadrat der Tourenzahl, zum Zwecke, die zwischen den ungefähr senkrecht zu den Arbeitsbürsten angeordneten Erregerbürsten auftretende Spannung zu einem Minimum zu machen.
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brush or use commutation coils v times the value than would be present with a sinusoidal distribution,
where v is to be understood as the ratio between the field strength actually present at the exciter brushes to that in the case of a sinusoidal field distribution, the EMF short-circuited under the exciter brushes is proportional to k-v. FIG. 13 also shows the course for v = 0 and two values of t between 0 and 1. The lowest straight line already mentioned corresponds to the value v = 1 ..
As you can see, it is possible in this way to reduce the short-circuit EMF under the excitation brushes as desired, even when voltage is applied to the working brushes.
PATENT CLAIMS:
1. Device according to Patent No. 25879 for the excitation and regulation of exclusively or partially excited alternating current commutator machines in direct or inductively mediated series circuit, shunt circuit, compound circuit or double circuit circuit which alternates if necessary for different working conditions, characterized in that the entire Working voltage is distributed to the externally fed stator and rotor working windings, taking into account the effective turns ratio that deviates from the value 1, for each working state so that - based on the transformation ratio 1:
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The entire working voltage behaves like the square of the number of cycles to the square of the number of revolutions, for the purpose of minimizing the voltage that occurs between the exciter brushes arranged approximately perpendicular to the working brushes.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1901153730D DE153730C (en) | 1901-11-16 | 1901-11-16 | Method for controlling alternating current machines with direct current armature. |
| DE47884X | 1908-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT47884B true AT47884B (en) | 1911-05-26 |
Family
ID=25749059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT47884D AT47884B (en) | 1901-11-15 | 1909-01-23 | Device for the excitation and regulation of alternating current commutator machines. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT47884B (en) |
-
1909
- 1909-01-23 AT AT47884D patent/AT47884B/en active
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