DE547704C - Arrangement for the suppression of harmonics for valve rectifiers fed by transformers in double-throw circuit - Google Patents
Arrangement for the suppression of harmonics for valve rectifiers fed by transformers in double-throw circuitInfo
- Publication number
- DE547704C DE547704C DEST44997D DEST044997D DE547704C DE 547704 C DE547704 C DE 547704C DE ST44997 D DEST44997 D DE ST44997D DE ST044997 D DEST044997 D DE ST044997D DE 547704 C DE547704 C DE 547704C
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- transformers
- suppression
- harmonics
- double
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Description
In Anlagen zur Gleichrichtung von Wechselstrom mittels Ventilen, die übet Transformatoren gespeist werden, dienen zur Verringerung der Obersehwingungen vielfach Drosselspulen, welche aber sehr unwirtschaftlich arbeiten.In systems for rectifying alternating current by means of valves, which exercises Transformers are fed, serve to reduce the upper visual vibrations in many ways Choke coils, which work very uneconomically.
Die Erfindung beschreitet einen anderen Weg, um die Obersehwingungen schon vor der Gleichrichtung des Wechselstromes zu ίο unterdrücken.The invention takes a different approach to the upper visual vibrations before the rectification of the alternating current to suppress ίο.
Bei einer bekannten Gleichrichterschaltung sind an einer Transformatorsekundärwicklung zwei Ventile derart angeschlossen, daß für den zwischen den Ventilen einerseits und X5 der Wicklungsmitte andererseits abgenommenen Gleichstrom beide Halbwellen des Wechselstromes nutzbar gemacht werden.In a known rectifier circuit, a transformer secondary winding two valves connected so that for between the valves on the one hand and X5 of the winding center on the other hand, direct current taken from both half-waves of the Alternating current can be made usable.
Erfindungsgemäß wird die Anordnung bei dieser Doppelwegschaltung so getroffen, daß ao für jede Wicklungshälfte ein für sich geschlossener magnetischer Eisenweg vorhanden ist. Zu diesem Zwecke werden zwei Einzeltransformatoren verwendet, deren Primärwicklungen in Reihe geschaltet sind »5. (Abb. la). Statt dessen kann auch der Transformator einen Mittelsteg erhalten, wodurch gleichfalls jeder Hälfte ein eigener magnetischer Weg gegeben wird (Abb. ib). In dieser Anordnung wirkt die Primärwicklung des durch sein Ventil auf der Sekundärseite gesperrten Transformators als Drossel, "so daß dem Transformator des stromdurchlässigen Ventils auf der Primärseite ein hoher Drosselwiderstand vorgeschaltet ist. Hierdurch wird der Scheitelwert der Spannung auf der Sekundärseite herabgedrückt.According to the invention, the arrangement is made in this two-way circuit so that ao there is a self-contained magnetic iron path for each winding half is. For this purpose, two individual transformers are used, their primary windings are connected in series »5. (Fig. La). Instead, the Transformer received a central web, which also means that each half has its own magnetic path is given (Fig. ib). The primary winding acts in this arrangement of the transformer blocked by its valve on the secondary side as a choke, "so that the transformer of the A high throttle resistor is connected upstream of the flow-permeable valve on the primary side is. This is the peak value of the voltage on the secondary side depressed.
Da während der Sperrzeit des Ventils auf der Primärseite des zugehörigen Transformators die Spannung sich erhöht, welcher Vorgang sich auf die Sekundärseite überträgt, wird dies Ventil früher wieder zünden und später erlöschen, so daß eine Überlappung der Ströme eintritt, wodurch eine weitere Herabminderung der Obersehwingungen erfolgt, die auf diese Weise bei richtiger Bemessung von Eisenkern und Wicklungen ganz unterdrückt werden können.Because during the blocking time of the valve on the primary side of the associated transformer the voltage increases, which process is transferred to the secondary side, this valve will re-ignite earlier and later extinguish, so that an overlap of the currents occurs, whereby another Reduction of the upper visual vibrations takes place, which in this way with correct dimensioning can be completely suppressed by the iron core and windings.
Zur Gleichrichtung von Mehrphasenströmen wird in bekannter Weise eine Mehrzahl von einphasigen Gleichrichtergruppen zusammengeschaltet. To rectify multiphase currents, a plurality is used in a known manner interconnected by single-phase rectifier groups.
Die Abb. 2 zeigt die Anordnung nach der Erfindung zur Drehstromgleichrichtung in Dreieckschaltung, doch kann dieselbe auch in Sternschaltung sowie in den 6-, 12- usw. Phasenschaltungen angewendet werden.Fig. 2 shows the arrangement according to the invention for three-phase rectification in Delta connection, but the same can also be used in star connection as well as in 6-, 12-, etc. Phase connections are applied.
In den Abbildungen ist die Anordnung der Transformatoren leicht zu erkennen, die Ventile sind mit V bezeichnet und jeweils nur mit einer Kathode und der entsprechenden Anzahl Anoden dargestellt. Die Wechselstromquelle ist durch das bekannte Wechselstromzeichen, die Abnahmestelle für den entstehenden Gleichstrom durch das Gleichstromzeichen gekennzeichnet/The arrangement of the transformers is easy to see in the figures, the valves are labeled V and each is shown with only one cathode and the corresponding number of anodes. The alternating current source is identified by the well-known alternating current symbol, the take-off point for the resulting direct current by the direct current symbol /
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST44997D DE547704C (en) | Arrangement for the suppression of harmonics for valve rectifiers fed by transformers in double-throw circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST44997D DE547704C (en) | Arrangement for the suppression of harmonics for valve rectifiers fed by transformers in double-throw circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE547704C true DE547704C (en) | 1932-04-02 |
Family
ID=7464789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST44997D Expired DE547704C (en) | Arrangement for the suppression of harmonics for valve rectifiers fed by transformers in double-throw circuit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE547704C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943541C (en) * | 1939-08-26 | 1956-05-24 | Siemens Ag | Arrangement for equal or proportionally equal current distribution to several anodes of power converters working in parallel |
-
0
- DE DEST44997D patent/DE547704C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943541C (en) * | 1939-08-26 | 1956-05-24 | Siemens Ag | Arrangement for equal or proportionally equal current distribution to several anodes of power converters working in parallel |
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