DE1111279B - Protective device for rectifier arrangements - Google Patents
Protective device for rectifier arrangementsInfo
- Publication number
- DE1111279B DE1111279B DES61676A DES0061676A DE1111279B DE 1111279 B DE1111279 B DE 1111279B DE S61676 A DES61676 A DE S61676A DE S0061676 A DES0061676 A DE S0061676A DE 1111279 B DE1111279 B DE 1111279B
- Authority
- DE
- Germany
- Prior art keywords
- rectifier
- short
- circuiter
- protection device
- cells
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1203—Circuits independent of the type of conversion
- H02H7/1206—Circuits independent of the type of conversion specially adapted to conversion cells composed of a plurality of parallel or serial connected elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
- H02H7/1257—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers responsive to short circuit or wrong polarity in output circuit
-
- 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
- H02M7/066—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 particular circuits having a special characteristic
-
- 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
- H02M7/10—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 series, e.g. for multiplication of voltage
Description
Jede Art von Gleichrichteranordnungen muß mit Schutzeinrichtungen gegen evtl. auftretende Kurzschlüsse oder kurzschlußartige Überströme versehen sein. Dies gilt insbesondere auch für Gleichrichteranordnungen, die aus Halbleiterzellen aufgebaut sind. Häufig wird dieser Schutz von Kurzschließern auf der Sekundärseite des speisenden Transformators übernommen. Derartige Kurzschließer sind u.a. beim Kontaktumformer bekannt. Im Vergleich mit diesem spielt jedoch die Eigenzeit des Kurzschließers beim Halbleitergleichrichter keine so bedeutende Rolle. Es ist auch nicht nötig, daß ein extrem niederohmiger Kurzschluß gebildet wird, da hierbei im Gegensatz zum Kontaktumformer die Gleichrichterzelle die Eigenschaft eines echten Ventils behält. Es muß nur darauf geachtet werden, daß die vom Durchgangsstrom und von der Zeit abhängige Eigenerwärmung der Gleichrichterzellen das zulässige Maß nicht überschreitet. Every kind of rectifier arrangement must with Provide protective devices against any short-circuits or short-circuit-type overcurrents be. This also applies in particular to rectifier arrangements made up of semiconductor cells. This protection is often taken over by short-circuiters on the secondary side of the feeding transformer. Such short-circuiters are known, among other things, from contact converters. Compared with this plays However, the short-circuiter's operating time in the semiconductor rectifier does not play such an important role. It is it is also not necessary that an extremely low-resistance short circuit is formed, as this is in contrast to the Contact converter, the rectifier cell retains the property of a real valve. It just has to be on it care must be taken that the self-heating of the Rectifier cells does not exceed the permissible level.
Demgemäß betrifft die Erfindung eine Schutzeinrichtung mit Kurzschließer für Gleichrichteranordnungen mit Flächengleichrichterzellen auf der Basis eines Halbleitereinkristalls und dient der Anpassung an die besonderen Betriebsbedingungen.Accordingly, the invention relates to a protective device with short-circuiter for rectifier arrangements with surface rectifier cells on the base of a semiconductor single crystal and is used to adapt to the special operating conditions.
Erfindungsgemäß sind im Kurzschlußkreis auf der Wechselstromseite der Gleichrichteranordnung zusätzliche Impedanzen angeordnet.According to the invention are additional in the short circuit on the AC side of the rectifier arrangement Impedances arranged.
Die Fig. 1 bis 4 veranschaulichen verschiedene Ausführungsbeispiele bzw. Weiterbildungen der Erfindung. Gleiche Bauteile sind mit gleichen Ziffern bezeichnet, die Sinnbilder für die Gleichrichterzellen 3 und die Sicherungen 9 sollen dabei auch für Parallelschaltungen einer beliebigen Anzahl dieser Bauelemente gelten.FIGS. 1 to 4 illustrate various exemplary embodiments or further developments of the invention. Identical components are denoted by the same numbers, the symbols for the rectifier cells 3 and the fuses 9 should also be used for parallel connections apply to any number of these components.
Fig. 1 stellt eine einfache Sternschaltung dar. An die Sekundärwicklung 2 ernes Transformators sind
die Gleichrichterzellen 3 angeschlossen. Der Verbraucher besteht normalerweise aus ohmschen Widerstand
5 und Induktivität 4. Die Ausgänge der Sekundärwicklung 2 des Transformators sind mit einem
Kurzschließer 6 verbunden, wobei diesem Kurzschließer die zusätzlichen Impedanzen, z. B. Widerstände?,
vorgeschaltet sind. Diese Widerstände 7 sind so bemessen, daß im gleichstromseitigen Kurzschlußfall
der Strom durch die Halbleitergleichrichterzellen bis zum Abschalten der drehstromseitigen oder evtl.
auch der gleichstromseitigen, nicht gezeichneten Schalter, das tragbare Maß nicht überschreitet. Durch
diese Dämpfung des Kurzschlußstromes ergibt sich eine wesentlich geringere Beanspruchung von Transformator
und Kurzschließer, was von vornherein bei der Konstruktion dieser Bauteile berücksichtigt wer-Schutzeinrichtung
für Gleichrichteranordnungen1 shows a simple star connection. The rectifier cells 3 are connected to the secondary winding 2 of the transformer. The consumer normally consists of ohmic resistance 5 and inductance 4. The outputs of the secondary winding 2 of the transformer are connected to a short-circuiter 6 , this short-circuiter the additional impedances, for. B. resistors ?, are connected upstream. These resistors 7 are dimensioned so that in the event of a short circuit on the DC side, the current through the semiconductor rectifier cells does not exceed the acceptable level until the three-phase or possibly also the DC-side switches (not shown) are switched off. This damping of the short-circuit current results in a significantly lower load on the transformer and short-circuiter, which is taken into account from the outset when designing these components
for rectifier arrangements
Anmelder:
Siemens-Schuckertwerke Aktiengesellschaft,Applicant:
Siemens-Schuckertwerke Aktiengesellschaft,
Berlin und Erlangen,
Erlangen, Werner-von-Siemens-Str. 50Berlin and Erlangen,
Erlangen, Werner-von-Siemens-Str. 50
Dipl.-Phys. Günter Kliesch, Erlangen,
ist als Erfinder genannt wordenDipl.-Phys. Günter Kliesch, Erlangen,
has been named as the inventor
den kann. Die Auslösung der Kurzschließer geschieht dabei in üblicher Weise durch Impulswandler u. dgl.can. The short-circuiter is triggered in the usual way by pulse converters and the like.
Fig. 2 zeigt eine Abwandlung dieser Schaltung. Zwischen dem Kurzschließer 6 und dem Ausgang der Sekundärwicklungen 2 ist hier ein Hilfstransformator 10 eingebaut, der Strom und Spannung auf ein dem Kurzschließer genehmes Maß umformt. Die Streuung des Hilfstransformators 10 ist dabei so zu wählen, daß sich dieselben Verhältnisse wie in Fig. 1 ergeben; die vorgeschaltete Impedanz tritt also hier nicht mehr als selbständiges Bauelement auf.Fig. 2 shows a modification of this circuit. Between the short circuiter 6 and the output of the Secondary windings 2, an auxiliary transformer 10 is installed here, the current and voltage on a dem Short-circuiter formed into approved dimensions. The scatter of the auxiliary transformer 10 is to be selected so that that the same conditions result as in FIG. 1; the upstream impedance occurs here no longer appears as an independent component.
In Figur 2 sind außerdem mit den Gleichrichterzellen 3 Stromüberwachungseinrichtungen 9, z. B. Sicherungen, in Reihe geschaltet, die bei Verlust der Sperrfähigkeit einer Gleichrichterzelle sofort ansprechen und diese selektiv abschalten.In Figure 2 are also with the rectifier 3 current monitoring devices 9, z. B. Fuses, connected in series, which respond immediately if a rectifier cell loses its blocking capability and switch them off selectively.
Die Schaltung kann gemäß Fig. 3 weiter abgewandelt werden. Der getrennte Hilfstransformator 10 wird durch eine weitere Wicklung 8 des Haupttransformators ersetzt, die im Normalbetrieb leerläuft. Diese Zusatzwicklung 8 soll etwa den gleichen Kopplungsgrad zu allen drei Sekundärphasen besitzen, braucht aber im Leitungsquerschnitt nur für Kurzschlußfälle ausgelegt zu werden. Die Streuinduktivität ist dabei nach den gleichen Gesichtspunkten wie bei den bereits besprochenen Schaltungsbeispielen zu wählen.The circuit can be modified further according to FIG. 3. The separate auxiliary transformer 10 is replaced by another winding 8 of the main transformer, which runs idle in normal operation. This additional winding 8 should have approximately the same degree of coupling to all three secondary phases, but needs to be designed in the line cross-section only for short-circuit cases. The leakage inductance must be based on the same criteria as in the circuit examples already discussed Select.
Diese letzte Schaltung bietet insbesondere dann Vorteile, wenn, wie z. B. in Fig. 4, mehrere Sekundärwicklungen 21 bis 26 am Haupttransformator vorhanden sind. Jede dieser Sekundärwicklungen arbeitet auf eine dreiphasige Brückenschaltung von Gleichrichterzellen 3 und mit diesen in Reihe liegenden Sicherungen 9. Diese Einzelgleichrichteranordnungen sind in Reihe geschaltet, so daß sich insgesamt eineThis last circuit offers advantages especially when, such. B. in Fig. 4, several secondary windings 21 to 26 are present on the main transformer. Each of these secondary windings work on a three-phase bridge circuit of rectifier cells 3 and with these in series Fuses 9. These individual rectifier arrangements are connected in series, so that a total of one
109 648/161109 648/161
hohe Gleichspannung ergibt. Zur Erzielung einer zwölfphasigen Rückwirkung auf das Netz sind die Sekundärwicklungen 24 bis 26 in Dreieck geschaltet. Die Windungszahlen sind jedoch so gewählt, daß an den Gleichrichterzellen die gleichen Spannungsverhältnisse herrschen, wie bei den an die in Stern geschalteten Sekundärwicklungen 21 bis 23 angeschlossenen Gleichrichterzellen. Nach diesem Prinzip lassen sich Anlagen für hohe Spannungen, z. B. 3000 V, ohne besondere Schwierigkeiten ausführen. Der Aufwand für den Kurzschließer 6 und seine ihm zugeordnete gesonderte Wicklung 8 am Haupttransformator ist dabei der gleiche wie bei den vorher genannten einfacheren Schaltungen. Abschließend sei noch bemerkt, daß an Stelle des Kurzschließers selbstver- *5 ständlich auch ein entsprechend schnell ansprechender Schalter Verwendung finden kann. Die Schutzsicherungen für die Gleichrichterzellen sind zweckmäßigerweise so zu bemessen, daß ihr Ansprechstrom um einen angemessenen Betrag niedriger liegt als der für die Abschmelzzeit zulässige Strom durch die Gleichrichterzellen.high DC voltage results. To achieve a twelve-phase reaction to the network, the Secondary windings 24 to 26 connected in delta. However, the number of turns are chosen so that on the rectifier cells have the same voltage conditions as those connected to the star-connected Secondary windings 21 to 23 connected rectifier cells. Let according to this principle systems for high voltages, e.g. B. 3000 V, run without particular difficulties. The effort for the short-circuiter 6 and its associated separate winding 8 on the main transformer is the same as with the simpler circuits mentioned above. Finally it should be noted that instead of the short-circuiter, of course, a correspondingly fast responding one Switch can be used. The protective fuses for the rectifier cells are useful to be dimensioned in such a way that their response current is lower than that by an appropriate amount permissible current through the rectifier cells for the meltdown time.
Claims (5)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES61676A DE1111279B (en) | 1959-02-07 | 1959-02-07 | Protective device for rectifier arrangements |
GB423660A GB926051A (en) | 1959-02-07 | 1960-01-06 | Improvements in or relating to rectifier circuit arrangements |
NL247168A NL247168A (en) | 1959-02-07 | 1960-01-08 | |
BE586351A BE586351A (en) | 1959-02-07 | 1960-01-08 | Protective equipment for rectifier arrangements |
CH121161A CH382273A (en) | 1959-02-07 | 1960-01-15 | Rectifier bridge arrangement for high voltage |
CH42660A CH382270A (en) | 1959-02-07 | 1960-01-15 | Protective device for a rectifier |
FR816054A FR1245905A (en) | 1959-02-07 | 1960-01-19 | Protection device for rectifier equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES61676A DE1111279B (en) | 1959-02-07 | 1959-02-07 | Protective device for rectifier arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1111279B true DE1111279B (en) | 1961-07-20 |
Family
ID=7495041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES61676A Pending DE1111279B (en) | 1959-02-07 | 1959-02-07 | Protective device for rectifier arrangements |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE586351A (en) |
CH (2) | CH382270A (en) |
DE (1) | DE1111279B (en) |
FR (1) | FR1245905A (en) |
GB (1) | GB926051A (en) |
NL (1) | NL247168A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3445747A (en) * | 1965-04-16 | 1969-05-20 | Electricite De France | High-voltage power conversion assembly composed of a polyphase transformer combined with a plurality of sets of controlled rectifiers |
-
1959
- 1959-02-07 DE DES61676A patent/DE1111279B/en active Pending
-
1960
- 1960-01-06 GB GB423660A patent/GB926051A/en not_active Expired
- 1960-01-08 NL NL247168A patent/NL247168A/xx unknown
- 1960-01-08 BE BE586351A patent/BE586351A/en unknown
- 1960-01-15 CH CH42660A patent/CH382270A/en unknown
- 1960-01-15 CH CH121161A patent/CH382273A/en unknown
- 1960-01-19 FR FR816054A patent/FR1245905A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3445747A (en) * | 1965-04-16 | 1969-05-20 | Electricite De France | High-voltage power conversion assembly composed of a polyphase transformer combined with a plurality of sets of controlled rectifiers |
Also Published As
Publication number | Publication date |
---|---|
BE586351A (en) | 1960-05-03 |
GB926051A (en) | 1963-05-15 |
CH382273A (en) | 1964-09-30 |
CH382270A (en) | 1964-09-30 |
FR1245905A (en) | 1960-11-10 |
NL247168A (en) | 1964-02-10 |
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