DE629382C - Process for converting direct current into alternating current or alternating current at a different frequency - Google Patents

Process for converting direct current into alternating current or alternating current at a different frequency

Info

Publication number
DE629382C
DE629382C DEA62611D DEA0062611D DE629382C DE 629382 C DE629382 C DE 629382C DE A62611 D DEA62611 D DE A62611D DE A0062611 D DEA0062611 D DE A0062611D DE 629382 C DE629382 C DE 629382C
Authority
DE
Germany
Prior art keywords
alternating current
discharge
current
converting direct
frequency
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
DEA62611D
Other languages
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA62611D priority Critical patent/DE629382C/en
Application granted granted Critical
Publication of DE629382C publication Critical patent/DE629382C/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
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/51—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only

Description

Im Patent 614706 ist ein Verfahren und Einrichtungen zur Umformung von Gleichstrom in Wechselstrom oder zur Frequenzumformung von Wechselstrom, mittels gesteuerter Dampf- oder Gasentladungsstrecken beschrieben, bei dem Kondensatoren über die Entladungsstrecken taktmäßig vom speisenden Netz aufgeladen und auf den Verbraucher entladen werden. Der Gegenstand des Hauptpatents bezieht sich, insbesondere darauf, daß die Kondensatoren in einem besonderen Zwischenkreis angeordnet sind und in einem gegen die Frequenz .des primären oder des sekundären Netzes höherfrequenten Takt geladen werden.Patent 614706 describes a method and devices for converting direct current into alternating current or for converting frequency from alternating current by means of controlled vapor or gas discharge paths, in which capacitors are charged cyclically from the supply network and discharged to the consumer via the discharge paths. The subject matter of the main patent relates, in particular, to the fact that the capacitors are arranged in a special intermediate circuit and are charged in a cycle with a higher frequency than the frequency of the primary or secondary network.

Die vorliegende Erfindung betrifft eine vorteilhafte und zweckmäßige Abänderung der im Hauptpatent beschriebenen Anordnungen 'und ist dadurch gekennzeichnet, daß nicht nur die Entladeströme der Kondensatoren, sondern auch ihre Ladeströme dem Verbraucher zugeführt werden. Dies wird erfindungsgemäß durch Anwendung eines sowohl dem Lade- als auch, dem Entladekreis gemeinsamen Transformators erreicht, dessen Teilwicklungen derart angeordnet sind, daß die während einer Halbwelle des niederfrequenten Wechselstromes fließenden Tieilströme den Transformatorkern sämtlich in gleicher Richtung magnetisieren. Die Entladungsstrecken sowohl im Lade- als auch im Entladekreis (1,1 bzw. 2, II) werden dabei sowohl im Takt der höheren Frequenz des Zwischenkreises als auch.' im Takt der Niederfrequenz gesteuert.The present invention relates to a advantageous and expedient modification of the arrangements described in the main patent 'and is characterized by the fact that not only the discharge currents of the capacitors, but also their charging currents are fed to the consumer. According to the invention, this is achieved by using both the charging as well as the discharge circuit common transformer reached, its Part windings are arranged such that the low-frequency during a half-wave Alternating current flowing low currents all in the transformer core magnetize in the same direction. The discharge paths in both the charging and the in the discharge circuit (1,1 or 2, II) are both in the cycle of the higher frequency of the intermediate circuit as well. ' controlled in time with the low frequency.

Der Erfindungsgedanke möge an einem Ausführungsbeispiel näher erläutert werden, das eine Anordnung zur Erzeugung von Einphasenstrom aus Gleichstrom betrifft. Hier- <to bei sind mindestens vier Entladungsstrecken erforderlich. Die in der beiliegenden Zeichnung dargestellten vier gittergesteuerten Entladungsstrecken i, 2, I und II wandeln den Gleichstrom des Netzes IB in Einphasenwechselstrom niederer Frequenz um, der dem Netz N zugeführt wird. Die Umformung geschieht in der Weise, daß während der einen Halbwelle des Wechselstromes die Entladungsstrecken ι und 2 arbeiten und die Entladungsstrecken I und II gesperrt sind. Während der zweiten Halbwelle des Wechselstromes arbeiten die Entladungsstrecken I und II, und die Entladungsstrecken 1 und 2 sind gesperrt. Die Lade- und Entladfeströme für den Kondensator C1 werden durch Teilwicklungen eines Transformators T geführt, dessen Sekundärwicklung den Verbraucher N speist. Die während der einen Halbwelle fließenden Lade- und Entlad'eströme magnetisieren den Haupttransformator in gleichem Sinne, wie durch die Pfeile in der Zeichnung angedeutet ist.The idea of the invention should be explained in more detail using an exemplary embodiment that relates to an arrangement for generating single-phase current from direct current. At least four discharge paths are required here. The four grid-controlled discharge paths i, 2, I and II shown in the accompanying drawing convert the direct current of the network IB into single-phase alternating current of low frequency, which is fed to the network N. The transformation takes place in such a way that the discharge paths ι and 2 work during one half-wave of the alternating current and the discharge paths I and II are blocked. During the second half cycle of the alternating current, the discharge paths I and II work, and the discharge paths 1 and 2 are blocked. The charging and discharging fixed currents for the capacitor C 1 are passed through partial windings of a transformer T , the secondary winding of which feeds the consumer N. The charging and discharging currents flowing during one half-wave magnetize the main transformer in the same way, as indicated by the arrows in the drawing.

Für den Umformungsvorgang, insbesondere für die Kommutierung zwischen den einzelnen Entladungsstrecken, ist es von Vorteil, eine Drosselspule D vorzusehen. Ferner kann es empfehlenswert sein, parallel zum Netz N einen Glättungskondensator C2 vorzusehen, der, wie im Patent 614706 bereits erwähnt ist, verhältnismäßig klein gehalten werden kann. It is advantageous to provide a choke coil D for the reshaping process, in particular for the commutation between the individual discharge paths. Furthermore, it can be advisable to provide a smoothing capacitor C 2 in parallel with the network N, which, as already mentioned in patent 614706, can be kept relatively small.

Die Steuerung der Entladungsstrecken ist im einzelnen nicht angegeben. Bei Verwendung von gittergesteuerten Entladungsgefäßen wird man vorteilhaft die bereits vor- geschlagenen vielfachen Gittersteuerungsmöglichkeiten verwenden.The control of the discharge paths is not specified in detail. Using grid-controlled discharge vessels benefit from the multiple grid control options already proposed use.

Claims (1)

Patentanspruch :Claim: Abänderung der Anordnung zur Umformung von Gleichstrom oder Wechselstrom in Wechselstrom nach Patent 614706, dadurch gekennzeichnet, daß nicht nur die Entladeströme der Kondensatoren (C1), sondern auch ihre Ladeströme dem Verbraucher unter Verwendung eines Transformators (T) mit derart angeordneten Teilwicklungen zugeführt werden, daß die während einer Halbwelle des niederfrequenten Wechselstromes fließenden Teilströme den Transformatorkern in gleichem Sinne magnetisieren und sowohl die die Ladung als auch die die Entladung vermittelnden" Entladungsstrecken (1, I bzw.' 2,- II) im Takt der höheren Frequenz und im Takt der Niederfrequenz gesteuert werden.Modification of the arrangement for converting direct current or alternating current into alternating current according to patent 614706, characterized in that not only the discharge currents of the capacitors (C 1 ) but also their charging currents are fed to the consumer using a transformer (T) with partial windings arranged in this way, that the partial currents flowing during a half-wave of the low-frequency alternating current magnetize the transformer core in the same way and both the charge and the discharge mediating "discharge paths (1, I or ' 2, - II) in the cycle of the higher frequency and in the cycle of the Low frequency can be controlled. Hierzu I Blatt ZeichnungenFor this purpose I sheet drawings
DEA62611D Process for converting direct current into alternating current or alternating current at a different frequency Expired DE629382C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA62611D DE629382C (en) Process for converting direct current into alternating current or alternating current at a different frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA62611D DE629382C (en) Process for converting direct current into alternating current or alternating current at a different frequency

Publications (1)

Publication Number Publication Date
DE629382C true DE629382C (en) 1936-04-29

Family

ID=6942959

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA62611D Expired DE629382C (en) Process for converting direct current into alternating current or alternating current at a different frequency

Country Status (1)

Country Link
DE (1) DE629382C (en)

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