DE752445C - Arrangement for harmonic compensation in alternating current networks - Google Patents
Arrangement for harmonic compensation in alternating current networksInfo
- Publication number
- DE752445C DE752445C DEA84731D DEA0084731D DE752445C DE 752445 C DE752445 C DE 752445C DE A84731 D DEA84731 D DE A84731D DE A0084731 D DEA0084731 D DE A0084731D DE 752445 C DE752445 C DE 752445C
- Authority
- DE
- Germany
- Prior art keywords
- choke coil
- arrangement
- transformer
- iron core
- harmonic
- 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
- H02M5/02—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 without intermediate conversion into dc
- H02M5/04—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 without intermediate conversion into dc by static converters
- H02M5/10—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 without intermediate conversion into dc by static converters using transformers
- H02M5/12—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 without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
Die Erfindung betrifft eine Anordnung zur Obermrellenkompensation in Wechselstromnetzen mittels einer an das Netz angeschlossenen Eisenkerndrosselspule, die die Störfrequenz kurzschließt und einen Strom passender Verzerrung aufnimmt. Dabei ist bereits vorgeschlagen worden, die Drosselspule zwecks Änderung der Phasenlage der Oberwellenströme gegenüber der Grundwelle über eine transformatorische Einrichtung an das zu reinigende Netz zu schalten.The invention relates to an arrangement for upper shaft compensation in alternating current networks by means of an iron core choke coil connected to the network, which short-circuits the interference frequency and absorbs a current of suitable distortion. It has already been proposed to use the choke coil to change the phase position of the harmonic currents compared to the fundamental wave via a transformer device to switch to the network to be cleaned.
Als transformatorische Einrichtung dient in diesen Fällen ein Drehregler. Hiermit kann zwar die gewünschte Phas:endrehung der Oberwellenströme erreicht werden, jedoch verlangt ein Drehregler eine erhebliche, Pflege und Wartung, was unerwünscht ist. Deingegenüber wird erfindungsgemäß eine einfachere Lösung darin gefunden, daß die Phasenänderung der Kompensation soberwellen durch einen Zwischentransformator in Zickzack- oder ähnlicher Schaltung erzwungen wird.In these cases, a rotary control is used as the transformer. This allows the desired phase rotation of the harmonic currents to be achieved, however, a rotary switch requires considerable care and maintenance, which is undesirable is. In contrast, a simpler solution is found according to the invention in that the phase change of the compensation soberwellen through an intermediate transformer is forced in zigzag or similar circuit.
'Die Erfindung wird nachstehend an Hand der Zeichnung an einigen Ausführungsbeispielen noch näher beschrieben.The invention is explained below with reference to the drawing of some exemplary embodiments described in more detail.
In Abb. i ist die Eisenkerndrosselspule i über einen solchen Transformator 2 an das Drehstromnetz RST angeschlossen. Die Phasenänderung des Zickzacktransformators kann durch die vorgesehenen Anzapfungen zwischen o und 30 elektrischen Graden geregelt werden, wobei beispielsweise die fünfte Harmonische gegenüber der Grundwelle um o bis i8o elektrische Grade geschwenkt wird. Die phasenschwenk .ende Eigenschaft von Zickzacktransformatoren in bezug auf die Grundwelle ist bekannt. Nicht bekannt war es dangen, daß man mit einer derartigen Anordnung auch eine Schwenkung des Oberwellenstromes gegenüber dem Grundwellenstrom erzielen kann. Eine gewisse Schwierigkeit besteht jedoch- darin, daß dabei gleichzeitig das Übersetzungsverhältnis des Zicl-:-zacktransformators geändert wird. Das läßt sich aber durch entsprechende Änderung der Windungszahlen der Drosselspule, die ja ohnehin mit Anzapfungen ausgerüstet sein muß, wieder ausgleichen.In Fig. I, the iron core choke coil i is connected to the three-phase network RST via such a transformer 2. The phase change of the zigzag transformer can be regulated by the provided taps between 0 and 30 electrical degrees, whereby, for example, the fifth harmonic is swiveled by 0 to 18o electrical degrees with respect to the fundamental wave. The phase pivoting property of zigzag transformers with respect to the fundamental wave is known. It was not known that with such an arrangement one can also achieve a swiveling of the harmonic current with respect to the fundamental wave current. However, there is a certain difficulty in that the transformation ratio of the Zicl -: - Zack transformer is changed at the same time. However, this can be compensated for by changing the number of turns of the choke coil, which must be equipped with taps anyway.
Man kann auch die Eisenkerndrosselspule mit der Phasenregeleinrichtung vereinigen, wenn man diese z. B. mit einer Zickzackwicklung ausrüstet. Allerdings müssen dann beide Teile der Wicklungen jeder Phase mit Anzapfungen ausgerüstet werden. Bei einer solchen Anordnung nimmt die Drosselspule in der in Abb.2 dargestellten Stellung der Anzapfschalter einen ebensolchen Strom auf wie eine in Stern geschaltete Spule. In einer Stellung gemäß Abb. 3 dagegen wirkt sie als reine Zickzackspule, die fünfte Harmonische hat ihre Stellung im Verhältnis zur Grundwelle um i8o elektrische Grade geschwenkt. Abb. a. zeigt eine Schaltung, deren Wirkung zwischen denen der Schaltungen gemäß den Abb. 2 und 3 liegt. Daß mit Hilfe der Anzapfschalter gleichzeitig auch eine Regelung der Stromgröße, durch Änderung der wirksamen Windungszahlen möglich ist, ist ohne weiteres ersichtlich.You can also use the iron core choke coil with the phase control device unite when one z. B. equipped with a zigzag winding. However then both parts of the windings of each phase must be equipped with taps. With such an arrangement, the choke coil takes on the position shown in Fig.2 Position the tap switch to the same current as a star-connected one Kitchen sink. In a position according to Fig. 3, on the other hand, it acts as a pure zigzag coil, the fifth harmonic has its position in relation to the fundamental wave around 18o electrical Panned straight. Fig. A. shows a circuit whose effect is between those of the Circuits according to Fig. 2 and 3 is located. That with the help of the tap switches at the same time It is also possible to regulate the current size by changing the effective number of turns is, is readily apparent.
Die- Anzapfschaltungen lassen sieh naturgemäß mannigfach abwandeln. Ein Beispiel einer solchen abgeänderten Anordnung zeigt Abb. 5.The tap circuits can naturally be modified in many ways. An example of such a modified arrangement is shown in Fig. 5.
Abb.6 schließlich zeigt eine Anordnung. bei welcher für den beschriebenen Zweck Dreieckwicklungen verwendet «-erden. Die Anzapfungen ermöglichen auch hier die Regelung sowohl der wirksamen Windungszahl als auch der Phase.Finally, Fig. 6 shows an arrangement. at which for the described Purpose triangular windings used «-ground. The taps allow here too the regulation of both the effective number of turns and the phase.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA84731D DE752445C (en) | 1937-11-04 | 1937-11-04 | Arrangement for harmonic compensation in alternating current networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA84731D DE752445C (en) | 1937-11-04 | 1937-11-04 | Arrangement for harmonic compensation in alternating current networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE752445C true DE752445C (en) | 1952-03-31 |
Family
ID=6949273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA84731D Expired DE752445C (en) | 1937-11-04 | 1937-11-04 | Arrangement for harmonic compensation in alternating current networks |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE752445C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2410243A1 (en) * | 1974-03-04 | 1975-09-11 | Klein Kg Elektro Geraete G | Three, interconnected single, phase transformer - has DC excited control and zig-zag connected transformer with series-parallel tuned ccts. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE495651C (en) * | 1927-11-15 | 1930-04-09 | Aeg | Device for independent regulation of the size and phase position of alternating voltages |
| DE583932C (en) * | 1931-01-04 | 1933-09-13 | Bernhard Jansen Dr Ing | Series stage transformer for the gradual regulation of the active or reactive power flow between coupled power supply units |
-
1937
- 1937-11-04 DE DEA84731D patent/DE752445C/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE495651C (en) * | 1927-11-15 | 1930-04-09 | Aeg | Device for independent regulation of the size and phase position of alternating voltages |
| DE583932C (en) * | 1931-01-04 | 1933-09-13 | Bernhard Jansen Dr Ing | Series stage transformer for the gradual regulation of the active or reactive power flow between coupled power supply units |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2410243A1 (en) * | 1974-03-04 | 1975-09-11 | Klein Kg Elektro Geraete G | Three, interconnected single, phase transformer - has DC excited control and zig-zag connected transformer with series-parallel tuned ccts. |
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