DE581082C - The voltage curve flattening suction device for rectifier systems - Google Patents

The voltage curve flattening suction device for rectifier systems

Info

Publication number
DE581082C
DE581082C DES82169D DES0082169D DE581082C DE 581082 C DE581082 C DE 581082C DE S82169 D DES82169 D DE S82169D DE S0082169 D DES0082169 D DE S0082169D DE 581082 C DE581082 C DE 581082C
Authority
DE
Germany
Prior art keywords
suction device
voltage curve
rectifier
transformer
rectifier systems
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
DES82169D
Other languages
German (de)
Inventor
Dr-Ing Moritz Schenkel
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES82169D priority Critical patent/DE581082C/en
Application granted granted Critical
Publication of DE581082C publication Critical patent/DE581082C/en
Expired legal-status Critical Current

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
    • H02M7/068—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 mounted on a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Description

Die Spannungskurve abflachende Saugvorrichtung für Gleichrichteranlagen Es ist bekannt, bei Metalldampfglel.chrichtern zur Verteilung der Belastung auf zwei oder auch mehr Anoden sogenannte Saugdrosselspulen zu benutzen, die auch durch Manteltransformatoren für die Anodenspeisung ersetzt werden können. Diese Saugorgane haben die Wirkung, daß durch sie in die sinusförmige Kurve der den Gleichrichteranoden zugeführten Transformatorspannung eine dritte Harmonische eingefügt und dadurch die Spitze der Spannungskurve abgeflacht wird. Man erzielt damit mannigfache Vorteile: Die Belastung der einzelnen: Anoden wird vermindert, ebenso die Phasenbelastung des Transformators, und es bietet sich infolgedessen die Möglichkeit, kleinere Typen für den Speisetransformator zu verwenden und größere Kurzschlußspannungen im Transformator zuzulassen. Letzteres ist besonders wichtig wegen der Erhöhung der Kurzschlußsicherheit der Anlage.Suction device for rectifier systems that flattens the voltage curve It is known to distribute the load on Metalldampfglel.chrichtern two or more anodes to use so-called suction choke coils, which also through Sheathed transformers for the anode feed can be replaced. These suction organs have the effect of being in the sinusoidal curve of the rectifier anodes applied transformer voltage inserted a third harmonic and thereby the peak of the voltage curve is flattened. There are many advantages to this: The load on the individual: anodes is reduced, as is the phase load of the transformer and, as a result, there is the possibility of smaller types to be used for the supply transformer and larger short-circuit voltages in the transformer to allow. The latter is particularly important because it increases the short-circuit protection the plant.

Ein Nachteil der bekannten Saugvorrichtungen liegt darin, daß die Einfügung der dritten Harmonischen eine Wirkung des Belastungsstromes ist; bei geringer Belastung und gar bei Leerlauf des Gleichrichters fällt die dritte Harmonische aus, die Spannungskurve spitzt sich also wieder zu, und die Folge ist, daß bei Leerlauf oder in der Nähe des Leerlaufes eine Spannungssteigerung eintritt. Diese Spannungssteigerung bei geringem Belastungsstrom zu verhüten, ist :die Aufgabe, die durch die vorliegende Erfindung gelöst wird. Erfindungsgemäß wird nämlich für geringe Belastungen die zur Abflachung der Spannungskurve notwendige dritte Harmonische statt durch den Belastungsstrom künstlich durch einen Zusatzstrom dreifacher Grundfrequenz in der im sekundären Nullpunkt des Gleichrirhtertransformators angeschlossenen Saugvorrichtung oder im speisenden Manteltransformator erzeugt.A disadvantage of the known suction devices is that the Third harmonic insertion is an effect of the load current; at lower Load and even when the rectifier is idling, the third harmonic fails, the voltage curve comes to a head again, and the result is that at idle or an increase in voltage occurs near idle. This increase in tension To prevent at low load current is: the task that is caused by the present Invention is solved. According to the invention is namely for low loads third harmonic required to flatten the voltage curve instead of the Load current artificially through an additional current of three times the basic frequency in the suction device connected to the secondary zero point of the rectifier transformer or generated in the feeding jacket transformer.

Zu dem Zweck wird an der Saugdrossielspule oder an dem die Saugwirkung ,erzeugenden Manteltransformator eine Hilfswicklung vorgesehen, die von außen gespeist wird und dem Betriebsstrom einen Strom der dritten Harmonischen überlagert. Dieser zusätzliche Strom kann durch eine besondere Stromquelle, z. B. eine Synchronmasclhinle, für die Frequenz der dritten Harmonischeaz erzeugt werden; es ist aber auch möglich, ihn dafür geeigneten, ohnehin schon in der Anlage vorhandenen Teilen" die eine solche dritte Harmonische führen, zu entnehmen. Die Zusatzwicklung ist so einzulegen, daß sie deri magnetischen Kraftfluß, der in den genannten Apparaten vorhanden ist und die Grundperiodenzahl besitzt, nicht beeinflußt; bei Verwendung - von einphasigen Mantelhaupttransformatonen als Saugvorrichtung kann man dies beispielsweise dadurch erreichen, daß man als Zusatzwicklung eine auf die drei Schenkel der Transformatoranordnung verteilte, in Dreieck gbschaltete offene Wicklung verwendet.For this purpose, on the suction throttle coil or on which the suction effect , generating sheathed transformer provided an auxiliary winding, which is fed from the outside and a third harmonic current is superimposed on the operating current. This additional power can be supplied by a special power source, e.g. B. a synchronous drum, generated for the frequency of the third harmonic az; but it is also possible him suitable parts already available in the plant "the one such third harmonic lead to be taken. The additional winding is to be inserted so that they deri the magnetic flux that is present in the apparatus mentioned and owns the basic number of periods, does not affect it; when using - single-phase Mantle main transformers as a suction device can do this, for example achieve that as Additional winding one on the three legs Delta-connected open winding distributed in the transformer arrangement is used.

Claims (1)

PATEN TANSYRÜC11E: z. Die Spannungskurve abflachende Saugvorrichtung im sekundären Nullpunkt des Transformators für @Gleichrichteranlagen, dadurch gekennzeichnet, daß für geringe Belastungen die zur Abflachung der Spannungskurve notwendige dritte Harmonische -künstlich durch einen Zusatzstrom dreifacher Grundfrequenz mittels einer zusätzlichen Wicklung in der Saugvorrichtung erzeugt wird. z. Die Spannungskurve abflachende Saugvorrichtung für Gleichrichteranhgen, dadurch gekennzeichnet, daß bei Anwendung von @einphasigenn Mantelhaupttransformatoren als Saugvorrichtung die die dreifache Grundfrequenz führende Zusatzwicklung eine auf die drei Schenkel der Transformatoranordnung verteilte, in Dreieck geschaltete offene Wicklung ist. PATEN TANSYRÜC11E: z. The suction device flattening the voltage curve in the secondary zero point of the transformer for rectifier systems, characterized in that for low loads the third harmonic necessary to flatten the voltage curve is generated artificially by an additional current of three times the fundamental frequency by means of an additional winding in the suction device. z. The suction device flattening the voltage curve for rectifier attachments, characterized in that when using single-phase jacket main transformers as suction device, the additional winding carrying three times the fundamental frequency is a triangular open winding distributed over the three legs of the transformer arrangement.
DES82169D 1927-10-13 1927-10-13 The voltage curve flattening suction device for rectifier systems Expired DE581082C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES82169D DE581082C (en) 1927-10-13 1927-10-13 The voltage curve flattening suction device for rectifier systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES82169D DE581082C (en) 1927-10-13 1927-10-13 The voltage curve flattening suction device for rectifier systems

Publications (1)

Publication Number Publication Date
DE581082C true DE581082C (en) 1933-07-21

Family

ID=7510146

Family Applications (1)

Application Number Title Priority Date Filing Date
DES82169D Expired DE581082C (en) 1927-10-13 1927-10-13 The voltage curve flattening suction device for rectifier systems

Country Status (1)

Country Link
DE (1) DE581082C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751153C (en) * 1940-10-29 1952-09-22 Siemens Schuckertwerke A G Rectifier arrangement, especially for high voltage, with suction throttle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751153C (en) * 1940-10-29 1952-09-22 Siemens Schuckertwerke A G Rectifier arrangement, especially for high voltage, with suction throttle

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