DE1045530B - Capacitive voltage converter - Google Patents
Capacitive voltage converterInfo
- Publication number
- DE1045530B DE1045530B DES55695A DES0055695A DE1045530B DE 1045530 B DE1045530 B DE 1045530B DE S55695 A DES55695 A DE S55695A DE S0055695 A DES0055695 A DE S0055695A DE 1045530 B DE1045530 B DE 1045530B
- Authority
- DE
- Germany
- Prior art keywords
- choke
- voltage converter
- saturation
- capacitive voltage
- converter
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
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
- H02H7/04—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 transformers
- H02H7/05—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 transformers for capacitive voltage transformers, e.g. against resonant conditions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
DEUTSCHESGERMAN
Die Hauptpatentanmeldung S 50121 VHIb/21 d^ bezieht sich auf einen kapazitiven Spannungswandler mit einem Zwischenkreis, der aus einer Resonanzdrossel mit konstanter Induktivität und einem Hilfswandler besteht.The main patent application S 50121 VHIb / 21 d ^ refers on a capacitive voltage converter with an intermediate circuit, which consists of a resonance choke with constant inductance and an auxiliary converter.
Ein solcher Spannungswandler ist z. B. in der Fig. 1 dargestellt. An seinen kapazitiven Spannungsteiler C1ZC2 ist der schon erwähnte Zwischenkreis angeschlossen, welcher hier aus der Resonanzdrossel Dr mit konstanter Induktivität und dem Hilfswandler Sp (Mittelspannungswandler) besteht, auf dessen Sekundärseite die Bürde B angeschlossen ist. Außerdem sind unter Umständen noch weitere hier nicht interessierende Schaltelemente vorgesehen.Such a voltage converter is z. B. shown in FIG. The already mentioned intermediate circuit is connected to its capacitive voltage divider C 1 ZC 2 , which here consists of the resonance choke Dr with constant inductance and the auxiliary converter Sp (medium voltage converter), on whose secondary side the burden B is connected. In addition, other switching elements that are not of interest here may also be provided.
Bei einem solchen Wandler kann der Fall eintreten, daß bei Einleitung von Schaltvorgängen, z. B. bei hochspannungsseitiger Einschaltung des Wandlers oder nach erfolgtem Sekundärkurzschluß usw., Kippschwingungen angeregt werden, welche dazu führen, daß am unteren Teil des kapazitiven Spannungsteilers unzulässig hohe Spannungen und demzufolge auch hohe Ströme im angeschlossenen induktiven Zwischenkreis auftreten. Letzteres kann auch eintreten, wenn sekundärseitig starke Überlastungen bzw. Kurzschlüsse auftreten, ohne daß Kippschwingungen angeregt werden.With such a converter, the case may arise that when initiating switching operations, eg. B. at Switching on the converter on the high voltage side or after a secondary short circuit, etc., relaxation oscillations are excited, which lead to the lower part of the capacitive voltage divider Inadmissibly high voltages and consequently also high currents in the connected inductive intermediate circuit appear. The latter can also occur if there are severe overloads or short circuits on the secondary side occur without tilting vibrations being excited.
Um das Auftreten hoher Spannungen im obigen Sinne zu verhindern, ist gemäß dem Hauptpatent die Resonanzdrossel Dr mit einer Sekundärwicklung zum Anschluß einer weiteren derart bemessenen Drossel Dr1 mit geschlossenem Eisenweg ausgerüstet, daß ihre Induktivität mit steigendem Strom infolge Sättigung abnimmt.The occurrence of high voltages in the above sense to prevent the main patent is equipped in accordance with the resonant inductor Dr having a secondary winding for connection to another such sized throttle Dr 1 with a closed iron path that its inductance decreases with increasing current due to saturation.
Die Sättigungsdrossel Dr1 wirkt hierbei derart, daß ihr Scheinwiderstand mit zunehmendem Strom stark abnimmt, so daß im Zwischenkreis eine Verstimmung eintritt, welche in vielen Fällen das Entstehen von Kippschwingungen verhindert hat. Es hat sich nun gezeigt, daß nicht grundsätzlich Kippschwingungen, falls sie unter ungünstigen Umständen entstehen, zum Abklingen gebracht werden können.The saturation choke Dr 1 acts in such a way that its impedance decreases sharply with increasing current, so that a detuning occurs in the intermediate circuit, which in many cases prevented the occurrence of breakover oscillations. It has now been shown that tilting vibrations, if they arise under unfavorable circumstances, cannot fundamentally be made to subside.
Um hier Abhilfe zu schaffen, wird gemäß der Zusatzerfindung in den Kreis der Sättigungsdrossel ein Widerstand eingeschaltet oder die Wicklung der Sättigungsdrossel selbst aus Widerstandsdraht hergestellt. In order to remedy this situation, according to the additional invention, a saturation choke is added to the circle Resistance switched on or the winding of the saturable reactor itself made of resistance wire.
Der Kreis der Sättigungsdrossel Dr1 erhält damit vornehmlich Ohmschen Charakter, wobei der Wider-Kap azitiver SpannungswandlerThe circuit of the saturable choke Dr 1 is thus primarily given an ohmic character, with the conscapacitive voltage converter
Zusatz zur Patentanmeldung S 50121 VIIIb/21 d2
(Auslegeschrift 1 017 269)Addition to patent application S 50121 VIIIb / 21 d 2
(Interpretation document 1 017 269)
Anmelder:Applicant:
Siemens & Halske Aktiengesellschaft,Siemens & Halske Aktiengesellschaft,
Berlin und München,
München 2, Witteisbacherplatz 2Berlin and Munich,
Munich 2, Witteisbacherplatz 2
Dipl.-Ing. Hans Kettler, Berlin-Wilmersdorf,Dipl.-Ing. Hans Kettler, Berlin-Wilmersdorf,
und Dipl.-Ing. Erwin Henkel, Berlin-Siemensstadt,and Dipl.-Ing. Erwin Henkel, Berlin-Siemensstadt,
sind als Erfinder genannt wordenhave been named as inventors
standswert dieses Kreises durch Transformation in der Resonanzdrossel Dr dem Zwischenkreis eingeprägt wird und die damit erzielte Abdämpfung des Zwischenkreises die angeregten Kippschwingungen zum Erlöschen bringt.value of this circuit is impressed on the intermediate circuit by transformation in the resonance choke Dr and the damping of the intermediate circuit achieved thereby extinguishes the excited relaxation oscillations.
In der Fig. 2 ist das Schemabild der Fig. 1 durch Einfügung des Widerstandes R gemäß der Zusatzerfindung ergänzt. Wie schon erwähnt, kann dieser Widerstand auch dadurch ersetzt werden, daß die Drossel Dr1 selbst aus Widerstandsdraht hergestellt ist.In FIG. 2, the schematic diagram of FIG. 1 is supplemented by inserting the resistor R according to the additional invention. As already mentioned, this resistance can also be replaced by the fact that the choke Dr 1 itself is made from resistance wire.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES55695A DE1045530B (en) | 1957-10-29 | 1957-10-29 | Capacitive voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES55695A DE1045530B (en) | 1957-10-29 | 1957-10-29 | Capacitive voltage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1045530B true DE1045530B (en) | 1958-12-04 |
Family
ID=7490620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES55695A Pending DE1045530B (en) | 1957-10-29 | 1957-10-29 | Capacitive voltage converter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1045530B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1191904B (en) * | 1959-11-12 | 1965-04-29 | Hans Ritz Dr Ing | Capacitive voltage converter with inductive intermediate converter and damping resistor for suppressing relaxation oscillations |
| DE1287206B (en) * | 1959-02-21 | 1969-01-16 | Hans Dr Ing | Capacitive voltage converter |
-
1957
- 1957-10-29 DE DES55695A patent/DE1045530B/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1287206B (en) * | 1959-02-21 | 1969-01-16 | Hans Dr Ing | Capacitive voltage converter |
| DE1191904B (en) * | 1959-11-12 | 1965-04-29 | Hans Ritz Dr Ing | Capacitive voltage converter with inductive intermediate converter and damping resistor for suppressing relaxation oscillations |
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