DE659866C - Arrangement for even current distribution during the entire working cycle on the anodes of several rectifier vessels working in parallel - Google Patents

Arrangement for even current distribution during the entire working cycle on the anodes of several rectifier vessels working in parallel

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Publication number
DE659866C
DE659866C DEM129592D DEM0129592D DE659866C DE 659866 C DE659866 C DE 659866C DE M129592 D DEM129592 D DE M129592D DE M0129592 D DEM0129592 D DE M0129592D DE 659866 C DE659866 C DE 659866C
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DE
Germany
Prior art keywords
anodes
arrangement
parallel
working
rectifier
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
Application number
DEM129592D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of DE659866C publication Critical patent/DE659866C/en
Expired legal-status Critical Current

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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
    • H02M7/08—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 arranged for operation in parallel

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Ac-Ac Conversion (AREA)

Description

Bei einer aus mehreren parallel arbeitenden, an je eine besondere Sechsphasensekundärwicklungangeschlossenen Gleichrichtergefäßen bestellenden Gleichrichtergruppe, welche als eine Einheit betrieben wird, ist es vorteilhaft, daß die Stromverteilung während des ganzen Arbeitszyklus auf alle gleichzeitig arbeitenden Anoden eine gleichmäßige ist, damit jede Anode den gleichen Strom führt und die Erwärmungs- und Spannungsabfallverhältnisse für alle Anoden die gleichen sind. Erfindungsgemäß werden die Anoden jedes Gleichrichters abwechslungsweise an verschiedene Sekundärwicklungen angeschlossen, und in dem Nulleiter jedes einzelnen Systems sind Induktivitäten vorgesehen bzw. diese Leiter durch Verkettungstransformatoren paarweise miteinander magnetisch gekoppelt. Die vorgesehenen Induktivitäten dienen dazu, rascheWith one of several working in parallel, each connected to a special six-phase secondary winding Rectifier group ordering rectifier vessels, which is operated as a unit, it is advantageous to that the current distribution during the entire working cycle to all working at the same time Anode is uniform, so that each anode carries the same current and the heating and voltage drop ratios are the same for all anodes. According to the invention the anodes of each rectifier are alternately connected to different secondary windings connected, and inductances are provided or these conductors through in the neutral conductor of each individual system Interlinking transformers are magnetically coupled to one another in pairs. The intended Inductors are used to speed up

2D Veränderungen in der Größe des Stromes zu verzögern, so daß Ungleichheiten in den aufeinanderfolgenden Anodenströmen, die z. B. infolge ungleichen Spannungsabfalles in den einzelnen Gleichrichtergefäßen hervorgerufen werden, ausgeglichen werden. Zur Verstärkung dieser Wirkung, insbesondere in Fällen, wo die ungleiche Verteilung der Ströme der einzelnen Gleichrichtersysteme von der Verschiedenheit der Transformatorwicklungen herrührt, können die gleichen Maßnahmen zusätzlich auch in den Kathodenleitungen getroffen werden.2D changes in the size of the stream too delay so that inequalities in the successive anode currents, e.g. B. caused by unequal voltage drop in the individual rectifier vessels be balanced. To reinforce this effect, especially in cases where the unequal distribution of the currents of the individual rectifier systems from the difference the transformer windings, the same measures can also be taken in the cathode lines will.

Es sei angenommen, daß zwei Gleichrichter A und B \*erschiedene Spannungsabfälle aufweisen, so daß ζ. B. A die Neigung hat, 60 °/o und B 40 % des Gesamtstromes zu übernehmen. In diesem Falle müssen die Induktivitäten während je Vo Periode 60 0/0. 40 ο/υ. 6o %· 40 % usw. Strom führen, was eine Ausgleichspannung hervorruft, welche die Ströme bis auf den zur Erzeugung der Ausgleichspannung nötigen Magnetisierungsstrom ausgleicht. Da es sich.um verhältnismäßig sehr geringe Spannungsdifferenzen handelt, ergibt sich praktisch ein sehr weitgehender Ausgleich der Anodenströme.It is assumed that two rectifiers A and B have different voltage drops, so that ζ. B. A has the tendency to take over 60% and B 40% of the total current. In this case the inductances must be 60 0/0 during each Vo period. 40 ο / υ. 6o% · 40% etc. lead current, which creates an equalizing voltage, which equalizes the currents except for the magnetizing current necessary to generate the equalizing voltage. Since the voltage differences are relatively very small, there is practically a very extensive compensation of the anode currents.

Die erforderliche Ausgleichspannung kann auch erzeugt werden, indem z. B. beide Nullleiter miteinander über einen Verkettungstransformator gekoppelt werden. The required compensation voltage can also be generated by z. B. both neutral conductors can be coupled to one another via an interlinking transformer.

Die vorgesehenen Induktivitäten dienen gleichzeitig als Glättungsvorrichtung für den gleichgerichteten Strom.The inductances provided also serve as a smoothing device for the rectified current.

Im folgenden sind verschiedene Ausführungsmöglichkeiten der Anordnung erörtert.Various possible embodiments of the arrangement are discussed below.

Fall ιCase ι

Zwei Sechsanodengleichrichter A und B arbeiten in einer Gruppe. Die zwei sechsphasigen Sekundärwicklungen, welche zur .Spei- fi«Two six-anode rectifiers A and B work in one group. The two six-phase secondary windings which are used for the "storage"

sung vorgeselien sind, -besitzen die Anschlüsse i', 2', 3', 4', 5', 6' und 1", 2", 3", 4", 5", 6", und zwar in dieser Phasenfolge.solution are provided, -have the connections i ', 2', 3 ', 4', 5 ', 6' and 1 ", 2", 3 ", 4", 5 ", 6", in this phase sequence.

Wie aus Fig. 1 ersichtlich, werden die Anoden jedes der beiden Gleichrichter A und "JS abwechselnd an die beiden Sekundärwicklungen (' und ") angeschlossen, so daß z.B. das Gleichrichtergefäß A an i', 2", 3', 4", 5', 6" und das Gleichrichtergefäß B an 1", 2', 3", 4', 5", 6' angeschlossen ist. Zum Ausgleich der Unterschiede der Anodenströme der beiden Systeme A und B sind nun in dem Nulleiter jedes Gleichrichtersystems A und B die Induktivitäten L0 und L0" eingefügt, oder es übernimmt der Verkettungstransformator M0, M0" diese Aufgabe. Zur Verstärkung dieser Wirkung dienen die in der Kathodenleitung jedes Systems A und B angeordneten Induktivitäten La und Lb sowie der Verketlängstransformator M0, Mb. As can be seen from FIG. 1, the anodes of each of the two rectifiers A and "JS" are alternately connected to the two secondary windings ('and "), so that, for example, the rectifier vessel A is connected to i', 2", 3 ', 4 ", 5 ', 6 "and the rectifier vessel B is connected to 1", 2', 3 ", 4 ', 5", 6'. To compensate for the differences in the anode currents of the two systems A and B , the inductances L 0 and L 0 "are inserted in the neutral conductor of each rectifier system A and B , or the concatenation transformer M 0 , M 0 " takes over this task. The inductances L a and L b arranged in the cathode line of each system A and B , as well as the chain longitudinal transformer M 0 , M b, serve to reinforce this effect.

Fall 2Case 2

Drei Sechsanodengleichrichter A, B, C und drei Sekundärwicklungsgruppen 1' bis 6', 1" bis 6" und i'" bis 6"' sind vorhanden.There are three six-anode rectifiers A, B, C and three secondary winding groups 1 'to 6', 1 "to 6" and i '" to 6"'.

Die Anschlüsse werden dann folgendermaßen vorgenommen: Gefäß A: i', 2", 3"', 4', 5", 6"'; Gefäß 5: i", 2'", 3', 4", 5'", 6'; GefäßC:.!"', 2', 3", 4"V S'. 6".The connections are then made as follows: Vessel A: i ', 2 ", 3"', 4 ', 5 ", 6"'; Vessel 5: i ", 2 '", 3', 4 ", 5 '", 6'; Vessel C:.! "', 2', 3", 4 "V S '. 6".

FaIl3 Case 3

\ Vorhanden sind vier Sechsanodengleichrichter A, B1 C und D und vier Sekundärwicklungsgruppen 1' bis 6', 1" bis 6", 1"' bis 6"' und 1"" bis 6"". Die Anschlüsse sind: Gefäß /4: i', 2", 3', 4'", 5"", 6"'; Gefäß B: 1", 2', 3", 4"", 5'", 6""; Gefäß C: ι'", 2"", 3'",4',5".6'; Gefäß D: 1"", 2'", 3"", 4", 5'. 6". \ There are four six-anode rectifiers A, B 1 C and D and four secondary winding groups 1 'to 6', 1 "to 6", 1 "'to 6"' and 1 "" to 6 "". The connections are: Vessel / 4: i ', 2 ", 3', 4 '", 5 "", 6 "'; Vessel B: 1", 2 ', 3 ", 4"",5'", 6 ""; Vessel C: ι '", 2"",3'", 4 ', 5 ".6'; Vessel D: 1"", 2 '", 3 "", 4 ", 5'. 6".

Fall 4Case 4

Zwei Zwölfanodengleichrichter sind an zwei Sechsphasenwicklungen angeschlossen. Durch Anordnung von Stromverteilertransformatoren für je zwei Anoden desselben Gleichrichters, welche die Aufgabe haben, den Strom einer Phase gleichmäßig auf zwei Anoden zu verteilen (s. Fig. 2), wird die Zahl der Anschlüsse pro Gleichrichter von zwölf auf sechs vermindert und die Schaltung wie für zwei Sechsanodengleichrichter (Fall 1) vorgenommen.Two twelve-anode rectifiers are connected to two six-phase windings. By Arrangement of power distribution transformers for two anodes each of the same rectifier, which have the task of dividing the current of one phase equally into two To distribute anodes (see Fig. 2), the number of connections per rectifier is twelve reduced to six and the circuit as for two six-anode rectifiers (case 1) performed.

Aus den obengenannten Beispielen gibt es noch eine Anzahl weiterer Ausführungsmöglichkeiten für den Gegenstand der Erfindung.There are a number of other possible embodiments from the above examples for the subject matter of the invention.

Claims (2)

Patentansprüche:Patent claims: ι . Anordnung zur gleichmäßigen Stromverteilung während des ganzen Arbeitszyklus auf die Anoden mehrerer parallel arbeitender Gleichrichtergefäße, welche zu einer Gruppe zusammengefaßt sind, als eine Einheit betrieben werden und von denen jedes Gefäß an eine besondere Sechsphasensekundärwicklung angeschlossen ist, gekennzeichnet durch das abwechs-; lungsweise Anschließen der Anoden jedes Gefäßes an verschiedene Sekundärwicklungen, wobei in dem Nulleiter jedes einzelnen Systems Induktivitäten vorgesehen bzw. diese Leiter durch Verkettungstransformatoren paarweise miteinander magnetisch gekoppelt sind.ι. Arrangement for even power distribution during the entire work cycle on the anodes of several rectifier vessels working in parallel, which are combined into a group, as a unit can be operated and each of which is connected to a special six-phase secondary winding is characterized by the alternating; lwise connecting the anodes each Vessel to different secondary windings, with each individual in the neutral System inductivities provided or these conductors through interlinking transformers are magnetically coupled to one another in pairs. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Induktivitäten als Glättungsvorrichtung des gleichgerichteten •Stromes dienen.2. Arrangement according to claim 1, characterized in that the inductances as Smoothing device of the rectified • Serve electricity. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DEM129592D 1934-12-20 1934-12-25 Arrangement for even current distribution during the entire working cycle on the anodes of several rectifier vessels working in parallel Expired DE659866C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH659866X 1934-12-20

Publications (1)

Publication Number Publication Date
DE659866C true DE659866C (en) 1938-05-11

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Cited By (2)

* Cited by examiner, † Cited by third party
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
DE1107784B (en) * 1954-12-11 1961-05-31 Siemens Ag Converter arrangement for reversible drives

Cited By (2)

* Cited by examiner, † Cited by third party
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
DE1107784B (en) * 1954-12-11 1961-05-31 Siemens Ag Converter arrangement for reversible drives

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