DE718576C - Arrangement to compensate the reactive power of oscillating armature motors - Google Patents
Arrangement to compensate the reactive power of oscillating armature motorsInfo
- Publication number
- DE718576C DE718576C DEB185396D DEB0185396D DE718576C DE 718576 C DE718576 C DE 718576C DE B185396 D DEB185396 D DE B185396D DE B0185396 D DEB0185396 D DE B0185396D DE 718576 C DE718576 C DE 718576C
- Authority
- DE
- Germany
- Prior art keywords
- coil
- oscillating armature
- arrangement
- reactive power
- oscillating
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
- H02K33/04—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Description
Anordnung zur Kompensierung der Blindleistung von Schwingankermotoren Schwingankermotoren, wie sie z. B. für den Antrieb von Kältemaschinen bekanntgeworden sind, besitzen eine gefederte Masse, die in einem magnetischen Wechselfeld schwingt. Es ist bekannt, daß derartige Schwingankermotoren eine hohe Blindleistung und damit eine große Stromaufnahme besitzen. Es ist versucht worden, diese Nachteile dadurch zu vermeiden, daß der Magnetspule. eine Kapazität parallel geschaltet -wird. Es zeigt sich jedoch, daß in einem solchen Falle sehr stark verzerrte Stromkurven auftreten, die es unmög-7ich machen, derartige Geräte, namentlich in größerer Anzahl; an ein Netz anzuschließen. Diese Erscheinung tritt auch dann auf. wenn der Magnet ungesättigt ist und eine rein sinusförmige Netzspannung sichergestellt ist.Arrangement for compensating the reactive power of oscillating armature motors Oscillating armature motors as they are, for. B. has become known for driving refrigeration machines are, have a sprung mass that oscillates in an alternating magnetic field. It is known that oscillating armature motors of this type have a high reactive power and thus have a large power consumption. Attempts have been made to overcome these disadvantages to avoid the solenoid. a capacitance is connected in parallel. It it turns out, however, that in such a case very strongly distorted current curves occur, who make it impossible for me to use such devices, especially in large numbers; on a Connect the network. This phenomenon also occurs then. when the magnet is unsaturated and a purely sinusoidal mains voltage is ensured.
Die Erfindung beruht auf der grundlegenden Erkenntnis, daß das elektrische System eines Schwingankermotors eine dritte Stromharmonische braucht, von noch höheren Harmonischen abgesehen. Dies isst darauf zurückzuführen, daß dem System elektrische` Energie mit beispielsweise 5o Perioden zugeführt wird, während das mechanisch schwingende System aber mechanische Energie mit ioo Perioden abgibt. Daraus ergibt sich, daß die dritte Stromharmonische durch das System des Schwingankermotors bedingt ist, also nicht von außen her aufgedrückt wird. Die Größe der dritten Stromharmonischen ist, wie theoretische Untersuchungen zeigen, von derselben Größenordnung wie das Stromglied- der ersten Wirkharmonischen.The invention is based on the fundamental knowledge that the electrical System of a vibrating armature motor needs a third current harmonic, of even higher ones Apart from harmonics. This eats due to the fact that the system has electrical ' Energy with, for example, 50 periods is supplied, while the mechanically oscillating System but emits mechanical energy with 100 periods. It follows that the third current harmonic is due to the oscillating armature motor system, so is not pushed on from the outside. The size of the third current harmonic is, as theoretical studies show, of the same order of magnitude as that Current element - the first active harmonics.
Af Grund dieser Erkenntnis wird zur Kompenslerung der Blindleistung von Schwingankermotoren und zum Fernhalten der dritten Stromharmonischen vom Netz nach der Erfindung vorgeschlagen, der Magnetspule und der Kapazität eine Reaktanz vorzuschalten. Es gelingt dies z. B. sehr einfach dadurch, daß der mit :einem Kondensator parallel geschalteten Magnetspule eine Drosselspule vorgeschaltet wird.The basis of this knowledge is used to compensate for the reactive power of oscillating armature motors and to keep the third current harmonic away from the network proposed according to the invention, the solenoid and the capacity upstream a reactance. It succeeds z. B. very simply in that the with: a capacitor, a magnet coil connected in parallel, a choke coil connected upstream will.
Um den notwendigen Aufwand möglichst klein zu halten, -wird die Magnetspule des Schwingankermotors für eine solch hohe Spannung ausgelegt, z. B. 5oo Volt, daß der Kondensator möglichst klein wird. Nach der Erfindung wird hierzu empfohlen, daß der aus Magnetspule und Kapazität bestehende Schwingungskreis den Sekundärkreis eines Transformators bildet, dessen Sekundärspule die Magnetspule selbst ist und dessen Primärspule an das Wechselstromnetz, angeschlossen ist. Die Streuung zwischen beiden Spulen wird im Sinne einer Vorschaltreaktanz benutzt.In order to keep the necessary effort as small as possible, the magnetic coil of the oscillating armature motor designed for such a high voltage, e.g. B. 500 volts that the capacitor becomes as small as possible. According to the invention, it is recommended for this purpose that the oscillating circuit consisting of the magnet coil and the capacitance is the secondary circuit of a transformer whose secondary coil is the solenoid itself and whose primary coil is connected to the AC network. The spread between both coils is used in the sense of a series reactance.
Die Zeichnung veranschaulicht Ausführungsbeispiele des Erfindungsgedankens. In Abb. i ist die Schaltung einer Ausführungsmöglichkeit, in Abb. 2 :eine -weitere Schaltung veranschaulicht. Abb. 3 zeigt eine Anordnung zur Ausführung der Schaltung nach Abb.2.The drawing illustrates exemplary embodiments of the inventive concept. In Fig. I is the circuit of one possible implementation, in Fig. 2: another Circuit illustrated. Fig. 3 shows an arrangement for implementing the circuit according to Fig.2.
In Abb. i bedeutet a die Magnetspule des Schwingankermotors und b die parallel geschaltete Kapazität. Beiden -st eine Reaktanz c vorgeschaltet. Die Wirkung der Reaktanz c besteht darin, daß die durch das Schwingankersystem bedingte dritte Stromharmonische verhindert wird, in das Netz zurückzufließen. Die Real,-tanz c bildet zwar auch einen Widerstand für die zufließende erste Harmonische, jedoch ist dieser Widerstand klein, da die hierfür maßgebende Reaktanz nur ein Drittel so groß ist wie für die dritte Harmonische. Es kommt -weiterhin erleichternd hinzu, daß die Kapazität für die dritte Harmonische gut durchlässig ist und ihr Widerstand für die dritte Harmonische nur ein Drittel so groß ist -wie für die erste Harmonische.In Fig. I, a means the magnet coil of the oscillating armature motor and b the capacitance connected in parallel. Both -st a reactance c upstream. the The effect of the reactance c is that that caused by the oscillating armature system third current harmonic is prevented from flowing back into the network. The real, dance Although c also forms a resistance for the incoming first harmonic, however this resistance is small, since the reactance decisive for this is only a third is as large as for the third harmonic. It also makes things easier, that the capacitance for the third harmonic is well permeable and its resistance for the third harmonic is only a third as large as for the first harmonic.
Um den Aufwand an Kompensierungsmitteln möglichst klein zu halten, ist bei der Schaltung nach Abb. 2 die Magnetspule a des Schwingankermotors für eine solche Spannung, z. E. 5oo Volt, ausgelegt, daß die Kapazität b möglichst klein wird. Da die Netzspannung normalerweise kleiner ist als 5oo Volt, ist eine Primärwicklung d erforderlich, welche von der Netzspannung gespeist wird. Zwischen Primär- und Sekundärwicklung besteht Streuung, welche in ihrer Wirkung ähnlich ist der vorgeschalteten Reaktanz c in Abb. i. Sollte die natürliche Streuung nicht genügen, dann kann diese durch besondere Mittel verstärkt werden.In order to keep the cost of compensation means as small as possible, is in the circuit according to Fig. 2, the magnet coil a of the oscillating armature motor for a such tension, e.g. E. 500 volts, designed so that the capacity b is as small as possible will. Since the mains voltage is usually less than 500 volts, there is a primary winding d required, which is fed by the mains voltage. Between primary and Secondary winding is scattered, which is similar in its effect to the upstream Reactance c in Fig. I. If the natural spread is not sufficient, then this can be strengthened by special means.
Abb.3 zeigt ein Ausführungsbeispiel hierfür. Es bedeutet c die Magnetspule des Schwingankermotors, die gleichzeitig Sekundärwicklung eines Vorschalttransformators ist, d die Primärwicklung dieses Transformators. Zwischen Primär- und Sekundärwicklung ist ein Spalte vorgesehen, durch welchen die Streuung zwischen beiden Spulen vergrößert wird. Die Vergrößerung kann noch wirksamer gestaltet werden, wenn der Spalt mit einem magnetischen Baustoff ausgefüllt wird.Fig.3 shows an embodiment for this. It means c the solenoid of the oscillating armature motor, which is also the secondary winding of a series transformer is, d is the primary winding of this transformer. Between primary and secondary winding a gap is provided through which the scatter between the two coils is increased will. The enlargement can be made even more effective if the gap with filled with a magnetic building material.
Statt, wie in Abb.2 angegeben, zwei getrennte Wicklungen a und d zu verwenden, kann man auch eine sog. Sparschaltung zur Anwendung bringen.Instead of two separate windings a and d as shown in Fig a so-called economy circuit can also be used.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB185396D DE718576C (en) | 1938-11-29 | 1938-11-29 | Arrangement to compensate the reactive power of oscillating armature motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB185396D DE718576C (en) | 1938-11-29 | 1938-11-29 | Arrangement to compensate the reactive power of oscillating armature motors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE718576C true DE718576C (en) | 1942-03-16 |
Family
ID=7010004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB185396D Expired DE718576C (en) | 1938-11-29 | 1938-11-29 | Arrangement to compensate the reactive power of oscillating armature motors |
Country Status (1)
Country | Link |
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DE (1) | DE718576C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971137C (en) * | 1951-08-03 | 1958-12-18 | Alfred Zeh Dipl Ing | Method for operating an electromagnetic vibration compressor |
US3703692A (en) * | 1971-11-03 | 1972-11-21 | Hipotronics | Mechanically adjustable high voltage inductive reactor for series resonant testing |
DE2906335A1 (en) * | 1978-02-22 | 1979-09-13 | Yeda Res & Dev | DEVICE FOR GENERATING A LINEAR MOVEMENT |
-
1938
- 1938-11-29 DE DEB185396D patent/DE718576C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971137C (en) * | 1951-08-03 | 1958-12-18 | Alfred Zeh Dipl Ing | Method for operating an electromagnetic vibration compressor |
US3703692A (en) * | 1971-11-03 | 1972-11-21 | Hipotronics | Mechanically adjustable high voltage inductive reactor for series resonant testing |
DE2906335A1 (en) * | 1978-02-22 | 1979-09-13 | Yeda Res & Dev | DEVICE FOR GENERATING A LINEAR MOVEMENT |
US4455497A (en) * | 1978-02-22 | 1984-06-19 | Yeda Research And Development Co., Ltd. | Linear motion devices |
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