DE600457C - Sieve device for recycling the harmonics - Google Patents
Sieve device for recycling the harmonicsInfo
- Publication number
- DE600457C DE600457C DEK129935D DEK0129935D DE600457C DE 600457 C DE600457 C DE 600457C DE K129935 D DEK129935 D DE K129935D DE K0129935 D DEK0129935 D DE K0129935D DE 600457 C DE600457 C DE 600457C
- Authority
- DE
- Germany
- Prior art keywords
- harmonics
- harmonic
- voltage
- recycling
- series
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Description
Die Spannungskurve von Wechselstromnetzen, enthält bekanntlich Oberwellen, die infolge hoher Eisensättigung der Netzbelastungen entstehen. Mit Hilfe von Siebkreisen lassen sich diese Oberwellen verwerten, jedoch bedarf es einer Regelung, da die Spannung der ausgesiebten Oberwelle stark schwankt. Bisher sind zur Regelung der Siebkreisspannung regelbare Transformatoren,The voltage curve of AC networks, as is well known, contains harmonics that arise as a result of the high iron saturation of the network loads. With the help of sieve circles these harmonics can be used, but regulation is required because the voltage the filtered out harmonic fluctuates strongly. So far are to regulate the sieve circuit voltage adjustable transformers,
to Drosselspulen und auch Kondensatoren vorgeschlagen worden. Erfindungsgemäfi werden zur Regelung veränderliche Widerstände benutzt und dadurch niedrige Anlagekosten erreicht. Zur Veränderung der Regelwiderstände sind verhältnismäßig geringe Verstellkräfte erforderlich, auch die Abmessungen der Vorrichtung sind kleiner als bei anderen Regelapparaten. Der Siebkreis mit Regelwiderstand eignet sich daher besonders fürto inductors and also capacitors have been proposed. According to the invention variable resistances are used for regulation and therefore low system costs achieved. Relatively low adjusting forces are required to change the control resistances required, and the dimensions of the device are smaller than with other regulating devices. The filter circuit with rheostat is therefore particularly suitable for
ao Kleinanschlüsse, welche einfach und billig sein müssen. Während. ein Regelwiderstand wegen seiner Verluste sonst erhöhte Betriebskosten mit sich bringt, ist das hier nicht der Fall; denn die Oberwellenenergie fällt kostenlos an. Ihre Vernichtung ist sogar vorteilhaft, da hiermit die schädlichen Rückwirkungen der Oberwellen auf das primäre Netz abnehmen. Die im Regelwiderstand des Siebkreises auftretenden Verluste bringen daher keine wirtschaftlichen Nachteile mit sich.ao small connections, which have to be simple and cheap. While. a rheostat would otherwise result in increased operating costs due to its losses, this is not the one Case; because the harmonic energy is generated free of charge. Their destruction is even beneficial as this reduces the harmful effects of the harmonics on the primary network. The one in the rheostat of the filter circuit Any losses that occur therefore do not entail any economic disadvantages.
Die Siebvorrichtung ist entweder über einen Transformator oder, wie in der Zeichnung angegeben, unmittelbar an das Wechselstromnetz N angeschlossen, dessen SpannungskurveThe screening device is either connected via a transformer or, as indicated in the drawing, directly to the alternating current network N , its voltage curve
Oberwellen enthält. Um die Grundwelle fernzuhalten, ist ein auf die Grundfrequenz abgestimmter, aus der Drosselspule O1 und dem Kondensator C1 bestehender Sperrkreis vorhanden. In dem Verbrauchernetz, das durch die Lampen Lx bis ZL4 dargestellt ist, kann jetzt nur ein aus Oberwellen zusammengesetzter Strom fließen. Da ein sinusförmiger Strom erwünscht ist, der also nur eine einzige Oberwelle enthält, wird der Schwingungskreis mittels einer Drosselspule D2 auf die Frequenz der auszusiebenden Oberwelle abgestimmt. Contains harmonics. In order to keep the fundamental wave away, there is a blocking circuit which is tuned to the fundamental frequency and consists of the choke coil O 1 and the capacitor C 1. In the consumer network, which is represented by the lamps L x to ZL 4 , only a current composed of harmonics can now flow. Since a sinusoidal current is desired, which therefore contains only a single harmonic, the resonant circuit is tuned to the frequency of the harmonic to be filtered out by means of a choke coil D 2.
In Reihe mit der Drosselspule Z>2 und dem Verbrauchernetz liegt der regelbare Widerstand R. Steigt die Oberwellenspannung, so wird er vergrößert, und umgekehrt. Die Regelung kann selbsttätig erfolgen und etwa von der Spannung der ausgesiebten Oberwelle, also der Verbraucherspannung, gesteuert werden. . The adjustable resistor R is in series with the choke coil Z> 2 and the consumer network. If the harmonic voltage increases, it is increased, and vice versa. The regulation can take place automatically and be controlled, for example, by the voltage of the sifted out harmonic, i.e. the consumer voltage. .
Abweichend von der Zeichnung kann das Verbrauchernetz auch über einen Transformator angeschlossen werden, der für die Frequenz der ausgesiebten Oberwelle bemessen ist.Deviating from the drawing, the consumer network can also use a transformer must be connected, which is dimensioned for the frequency of the filtered out harmonic.
Die Siebvorrichtung hat besondere Bedeutung für den Anschluß an 162/3periodige Netze, von denen im Verbrauchernetz zweckmäßig die dritte Oberwelle (Frequenz 50 Hz) ausgenutzt wird.The screening device has special significance for the connection to 2 16 of which suitably the third harmonic (frequency 50 Hz) utilized in the consumer network / 3 periodige networks.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK129935D DE600457C (en) | Sieve device for recycling the harmonics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK129935D DE600457C (en) | Sieve device for recycling the harmonics |
Publications (1)
Publication Number | Publication Date |
---|---|
DE600457C true DE600457C (en) | 1934-07-23 |
Family
ID=7246991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK129935D Expired DE600457C (en) | Sieve device for recycling the harmonics |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE600457C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117729B (en) * | 1956-12-06 | 1961-11-23 | Ericsson Telefon Ab L M | Device for suppressing the fundamental and subharmonic ferromagnetic oscillations in alternating current circuits |
-
0
- DE DEK129935D patent/DE600457C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117729B (en) * | 1956-12-06 | 1961-11-23 | Ericsson Telefon Ab L M | Device for suppressing the fundamental and subharmonic ferromagnetic oscillations in alternating current circuits |
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