DE638428C - Arrangement for supplying energy from one alternating current network to another by means of rectifiers and inverters with a direct current intermediate circuit - Google Patents
Arrangement for supplying energy from one alternating current network to another by means of rectifiers and inverters with a direct current intermediate circuitInfo
- Publication number
- DE638428C DE638428C DEA66476D DEA0066476D DE638428C DE 638428 C DE638428 C DE 638428C DE A66476 D DEA66476 D DE A66476D DE A0066476 D DEA0066476 D DE A0066476D DE 638428 C DE638428 C DE 638428C
- Authority
- DE
- Germany
- Prior art keywords
- rectifiers
- inverters
- arrangement
- another
- alternating current
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/48—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Description
Für die Umformung hoher Spannungen mittels Dampf- oder Gasentladungsgefäße ist bereits vorgeschlagen worden, in Reihe mit jeder Entladungsstrecke einen synchron be-S tätigten Schalter, insbesondere eine Schalt-., walze, vorzusehen. Dadurch wird erreicht, daß die Entladungsstrecken im wesentlichen nur die Kommutierung bewirken, d.h. die Überführung des Stromes von einem Entladungsweg auf den anderen, aber nicht oder nur sehr wenig auf Sperrspannung beansprucht werden. Die Abschaltung der angelegten Spannung muß dabei möglichst unmittelbar nach dem Verlöschen des betrefrenden Anodenstromes erfolgen. Diese Abschaltung bereitet beim Wechselrichter keine Schwierigkeiten, da die Kommutierung kurz vor dem Nulldurchgang der in Frage kommenden Difierenzspannung beendet sein muß.For the conversion of high voltages using vapor or gas discharge vessels is It has already been proposed that a synchronous be-S be in series with each discharge path made switch, in particular a switch., roll to be provided. This achieves that the discharge paths essentially only effect the commutation, i.e. the Transfer of the current from one discharge path to the other, but not or very little reverse voltage is required. The shutdown of the created The voltage must be as soon as possible after the relevant one has gone out Anode current. This shutdown does not cause any problems with the inverter, since the commutation is short must be ended before the zero crossing of the difference voltage in question.
ao In diesem Augenblick werden die Entladungsgefäße nur durch sehr kleine Spannungswerte beansprucht. Beim Gleichrichter erfolgt jedoch die Kommutierung erst nach dem Nulldurchgang der in Frage kommenden Differenzspannung. Dabei ergeben sich betriebliche Schwierigkeiten, weil nach Beendigung des Kommutierungsvorganges die am Gefäß liegende Spannung sprunghaft ansteigt und unter Umständen eine Rückzündung hervorrufen kann. Die Dauer des Kommutierungs-Vorganges ist bei gegebener Belastung in erster Linie durch die Streuinduktivitäten des Gleichrichtertransformators bestimmt. Man wird daher versuchen, die Betriebssicherheit dadurch zu steigern, daß man Transformatoren mit harter Charakteristik verwendet. Dies ist jedoch beim Betrieb mit Hochspannungen nicht durchführbar, da dann die Transformatoren so viel aktives Material aufweisen müßten, daß sie unwirtschaftlich groß werden würden.ao At this moment the discharge vessels are only exposed to very low voltage values claimed. With the rectifier, however, commutation only takes place after the zero crossing the differential voltage in question. This results in operational difficulties because after termination of the commutation process, the voltage on the vessel rises sharply and can cause a flashback under certain circumstances. The duration of the commutation process is primarily determined by the leakage inductance of the rectifier transformer at a given load. Man will therefore try to increase operational reliability by using transformers used with hard characteristic. However, this is when operating with high voltages not feasible because the transformers then have so much active material would have to be that they would become uneconomically large.
Die vorliegende Erfindung ermöglicht in einfacher Weise, die sich aus der Kommutierung beim Gleichrichter ergebenden Schwierigkeiten zu vermeiden, und zwar wird cTies erfindungsgemäß erreicht, indem bei Anordnungen zur Energielieferung von einem Wechselstromnetz an ein anderes mittels Gleichrichter und Wechselrichter, d. h. über einen Gleichstrornzwischenkreis, dessen Welligfceit durch Einfügung von Glättungsmitteln in bekannter Weise beliebig verringert werden kann, das primäre Wechselstromnetz un- ' mittelbar, d.h. ohne Transformator, auf den Gleichstromzwischenkreis arbeitet. Die erforderliche Umspannung wird lediglich durch den Wechselrichtertransformator vorgenommen. Bei Anwendung des Erfindungsgedan-The present invention enables in a simple manner that results from the commutation to avoid difficulties resulting from the rectifier, namely cTies achieved according to the invention by means of arrangements for supplying energy from one alternating current network to another Rectifier and inverter, d. H. via a DC link whose waviness can be reduced as desired by the addition of smoothing agents in a known manner the primary AC network directly, i.e. without a transformer, to the DC link is working. The required loop lashing is only carried out by made the inverter transformer. When applying the inventive concept
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Dr.-Ing. Hans Laub in Berlin-Wilmersdorf'.Dr.-Ing. Hans Laub in Berlin-Wilmersdorf '.
kens ergibt sich der Vorteil, daß der Kommutierungsvorgang in einer solchen kurzen Zeit abläuft, daß das sprunghafte Ansteigen der am Entladungsgefäß liegenden Spannung nvtgs verhältnismäßig klein ist, so daß E.ückzünd3di£Ä| gen nicht auftreten. Die Abkürzung "i&ß Kommutierungsvorganges kommt daher, da'ßS die Netzinduktivität sehr klein gegenüber den Streuinduktivitäten eines Transformators ist.kens, there is the advantage that the commutation process takes place in such a short time that the sudden rise in the voltage nvtgs across the discharge vessel is relatively small, so that re-ignition3di £ Ä | genes do not occur. The abbreviation " commutation process" comes from the fact that the network inductance is very small compared to the leakage inductance of a transformer.
ίο In der Zeichnung ist der Erfindungsgedanke bei einer Wechselstrom-Gleichstrom-Wechselstrom-Umf ormung mittels zweier mehrphasiger Graetzschaltungen dargestellt. Die als Gleichrichter arbeitende Umformungsein-ίο In the drawing, the concept of the invention in an alternating current-direct current-alternating current scope Shown by means of two multi-phase Graetz circuits. the converter working as rectifier
>5 richtung^ mit den gittergesteuerten Dampf . oder Gasentladungsgefäßen la', la" bis 3«', 3«" und den Schaltwalzen ζα' 'und 5a" ist unmittelbar, d.h. ohne Transformator, an die Phasen ia, 2« und 3« des Primärnetzes 4a angeschlossen. An das andere Ende des GleichstromzwischenKreises 6', 6" ist die als. Wechselrichter arbeitende Umformungseinrichtung .5 mit den gittergesteuerten Dampf- oder Gasentladungsgefäßen ib', ib" bis ^b', 36" und den Schaltwalzen^ö' und $b" angeschlossen, die über einen Transformator, von dem nur die Primärwicklung mit den Phasen xb, ib und 36 dargestellt ist, auf das Sekundärnetz 4& arbeitet.> 5 direction ^ with the grid controlled steam. or gas discharge vessels la ', la " to 3«', 3 «" and the shift drums ζα " and 5a" is connected directly, ie without a transformer, to phases ia, 2 "and 3" of the primary network 4a. To the other end of the direct current intermediate circuit 6 ', 6 "is the as. Inverter working conversion device .5 with the grid-controlled vapor or gas discharge vessels ib ', ib " to ^ b', 36" and the switching rollers ^ ö 'and $ b " connected via a transformer, of which only the primary winding with the phases xb , ib and 36 is shown, operates on the secondary network 4 &.
Handelt es sich um Netzkupplungen, bei denen in beiden Richtungen Energielieferungen möglich sein sollen, so wird man fcfoei Energierichtungswechsel Umschaltungen irt den Hauptstromkreisen vornehmen, damit fgpoiäß der vorliegenden Erfindung die bisher ?als Wechselrichter, nunmehr aber als Gleichrichter arbeitende Umformungseinrichtung unmittelbar an die Netzleitungen angeschlossen werden kann. Diese Vorschrift bedingt, daß für jede der beiden Umformungseinrichtungen je ein Transformator vorgesehen werden muß, von denen aber nur einer die Übertragungsleistung umspannt.Are they network couplings with energy supplies in both directions? should be possible, one will fcfoei change of direction of energy switchings irt make the main circuits, so that fgpoiäß the present invention the hitherto ? as an inverter, but now as a rectifier working conversion device can be connected directly to the power lines. This rule requires that a transformer can be provided for each of the two conversion devices must, of which only one spans the transmission capacity.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA66476D DE638428C (en) | 1932-07-03 | 1932-07-03 | Arrangement for supplying energy from one alternating current network to another by means of rectifiers and inverters with a direct current intermediate circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA66476D DE638428C (en) | 1932-07-03 | 1932-07-03 | Arrangement for supplying energy from one alternating current network to another by means of rectifiers and inverters with a direct current intermediate circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE638428C true DE638428C (en) | 1936-11-14 |
Family
ID=6944143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA66476D Expired DE638428C (en) | 1932-07-03 | 1932-07-03 | Arrangement for supplying energy from one alternating current network to another by means of rectifiers and inverters with a direct current intermediate circuit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE638428C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966722C (en) * | 1949-05-11 | 1957-08-22 | Siemens Ag | Converter with DC link |
DE1230490B (en) * | 1960-08-12 | 1966-12-15 | Licentia Gmbh | Converter |
-
1932
- 1932-07-03 DE DEA66476D patent/DE638428C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966722C (en) * | 1949-05-11 | 1957-08-22 | Siemens Ag | Converter with DC link |
DE1230490B (en) * | 1960-08-12 | 1966-12-15 | Licentia Gmbh | Converter |
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