AT72561B - Device for generating usable single or multi-phase alternating currents with a variable number of periods. - Google Patents
Device for generating usable single or multi-phase alternating currents with a variable number of periods.Info
- Publication number
- AT72561B AT72561B AT72561DA AT72561B AT 72561 B AT72561 B AT 72561B AT 72561D A AT72561D A AT 72561DA AT 72561 B AT72561 B AT 72561B
- Authority
- AT
- Austria
- Prior art keywords
- periods
- phase alternating
- variable number
- alternating currents
- generating usable
- Prior art date
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- Control Of Eletrric Generators (AREA)
Description
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Einen Frequenzwandler ohne Statorwicklung zeigt Fig. 4. Der Rotor dieses Frequenz. wandlers M wird durch einen besonderen synchronen oder asynchronen Generator a gespeist und mittels der Transformatoren t1, tz geregelt.
Der Regelbereich des Induktionsgenerators kann selbstverständlich auch durch Polumschaltung erweitert werden.
Der Vorteil aller dieser Anordnungen gegenüber einer gewöhnlichen WechselstromKollektormaschine zur Erzeugung veränderlicher Frequenz liegt darin begründet, dass man durch Kaskadierung der Kollektormaschine die Grösse des Kollektors selbst, der zum rein elektrischen Regeln ja unbedingt notwendig ist, ganz erheblich vermindern kann. Man erhöht dadurch die Betriebssicherheit der Anlage und gelangt bei grossen Leistungen durch dieses Hilfsmittel überhaupt erst in den Bereich der Ausführungsmöglichkeit. Daneben gewinnt man noch die Annehmlichkeit, dass die zu regelnden Ströme bei all diesen Kaskadenanordnungen sehr klein sind und daher einfachere und leichter von Hand zu bedienende Regelapparate erfordern, als wenn man diese in den Hauptstrom des Generators einschalten müsste.
PATENT-ANSPRÜCHE :
1. Einrichtung zum Erzeugen von nutzbaren ein-oder mehrphasigen Wechselströmen von veränderlicher Periodenzahl, bei welcher dem primären Teil eines mit konstanter Drehzahl angetriebenen kollektorlosen Schleifring-Induktionsgenerators Erregerstrom von verändarlicher Frequenz in Kaskadenschaltung zugeführt wird, dadurch gekennzeichnet, dass die Kaskadenmaschinen vermittelst Wechselstromkollektoren ohne Zuhilfenahme mechanischer Reguliergetriebe rein elektrisch geregelt werden.
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A frequency converter without a stator winding is shown in FIG. 4. The rotor of this frequency. converter M is fed by a special synchronous or asynchronous generator a and regulated by means of transformers t1, tz.
The control range of the induction generator can of course also be extended by changing the pole.
The advantage of all these arrangements compared to a conventional alternating current collector machine for generating a variable frequency is based on the fact that the size of the collector itself, which is absolutely necessary for purely electrical control, can be reduced considerably by cascading the collector machine. This increases the operational safety of the system and, in the case of high performance, this aid is only able to get into the realm of the possible execution. In addition, one gains the convenience that the currents to be regulated are very small in all these cascade arrangements and therefore require simpler and easier to operate regulating apparatus than if they had to be switched into the main current of the generator.
PATENT CLAIMS:
1. Device for generating usable single- or multiphase alternating currents of variable number of periods, in which the primary part of a collectorless slip ring induction generator driven at constant speed is supplied with excitation current of variable frequency in cascade connection, characterized in that the cascade machines mediate alternating current collectors without the aid of mechanical ones Regulating gear can be controlled purely electrically.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT72561T | 1913-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT72561B true AT72561B (en) | 1916-10-25 |
Family
ID=3594206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT72561D AT72561B (en) | 1913-05-16 | 1913-05-16 | Device for generating usable single or multi-phase alternating currents with a variable number of periods. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT72561B (en) |
-
1913
- 1913-05-16 AT AT72561D patent/AT72561B/en active
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