DE916718C - Arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, especially those in one-way or two-way circuits, for voltage regulation of smaller machines - Google Patents
Arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, especially those in one-way or two-way circuits, for voltage regulation of smaller machinesInfo
- Publication number
- DE916718C DE916718C DEL3365A DEL0003365A DE916718C DE 916718 C DE916718 C DE 916718C DE L3365 A DEL3365 A DE L3365A DE L0003365 A DEL0003365 A DE L0003365A DE 916718 C DE916718 C DE 916718C
- Authority
- DE
- Germany
- Prior art keywords
- way
- grid
- arrangement
- gas discharge
- voltage regulation
- 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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Description
Die Erfindung bezieht sich auf eine Anordnung für mit gittergesteuerten Dampf- oder Gasentladungsstrecken arbeitende Gleichrichter, insbesondere solche in Ein- und Zweiwegschaltungen, zur Spannungsregelung kleinerer Maschinen, und bezweckt eine Vereinfachung solcher Regelschaltungen, besonders hinsichtlich des Aufwandes. Erfindungsgemäß arbeiten der oder die Gleichrichter auf einen aus zwei parallelen Zweigen bestehenden Verbraucher, von denen der eine Zweig ohmschen Widerstand R1 und Induktivität L, der andere Zweig ohmschen Widerstand R2 und Kapazität C aufweist und zwischen den Größen die Beziehung besteht. Diese Beziehung ist in der Wechselstromtechnik als sogenannte Widerstandsresonanz bekannt. Wer nun die Verbraucherverhältnisse in der Stromrichtertechnik auf der Gleichstromseite genauer untersucht, kommt zu dem Ergebnis, daß der Verbraucherkreis möglichst rein ohmschen Charakter haben soll. An sich ist es bekannt, zu einem induktiven Verbraucher einen Kondensator parallel zu schalten. Es bedarf keiner weiteren Begründung, daß man dann nur optimale Verhältnisse bezüglich einer Frequenz erhält, wenn auch weitere Oberwellen vermindert werden. Aus regeltechnischen Gesichtspunkten ist eine derartige Bevorzugung einer Frequenz nicht erwünscht. Ein gleichmäßiges Verhalten bei -allen Frequenzen kann, man aber nur mittels der eingangs genannten, in der reinen Wechselstromtechnik als Widerstandsresonanz bekannten Beziehung erreichen, und dies stellt gleichzeitig ein Optimum für Gleichrichter und Verbraucher dar.The invention relates to an arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, in particular those in one-way and two-way circuits, for voltage control of smaller machines, and aims to simplify such control circuits, particularly with regard to the complexity. According to the invention, the rectifier or rectifiers work on a consumer consisting of two parallel branches, one branch of which has ohmic resistance R1 and inductance L, the other branch has ohmic resistance R2 and capacitance C and the relationship between the variables consists. This relationship is known in AC technology as so-called resistance resonance. Anyone who examines the consumer conditions in converter technology on the direct current side more closely will come to the conclusion that the consumer circuit should have a purely ohmic character as possible. It is known per se to connect a capacitor in parallel to an inductive load. There is no need for any further justification that only optimal conditions with regard to a frequency are obtained if further harmonics are also reduced. From a technical control point of view, such a preference for a frequency is not desirable. Uniform behavior at all frequencies can, but only be achieved by means of the relationship mentioned at the beginning, known in pure alternating current technology as resistance resonance, and this is at the same time an optimum for rectifiers and consumers.
In der Zeichnung ist die Erfindung beispielsweise dargestellt. Zunächst zeigt Fig. i einen Einweggleichrichter, der auf einen aus den beiden Zweigen Kapazität 15 und Widerstand 16 sowie Induktivität 14 mit nicht dargestelltem ohmschem Anteil bestehendem Verbraucher arbeitet. Der über einen Transformator und Gleichrichter in Gleichstrom verwandelte und über eine Meßbrücke geführte Strom fließt durch zwei eisengeschlossene Drosseln i und 2 mit den Windungen W1 und W2, deren Windungszahlverhältnisse 1Y'1: W, das Verstärkerverhältnis angibt. Die Kondensatoren 3 und 4, der Widerstand 5 und die Netzwicklungen 6 und 7 sind Schaltelemente für die Phasenschiebung. 8 ist ein Gitterschutzwiderstand und g ein Gitterkondensator. Je nach den Belastungsverhältnissen werden die dabei entstehenden Spannungsschwankungen ausgesteuert und damit die Spannung der Erregerwicklung 14 des Drehstromgenerators, dessen Spannungen konstant gehalten werden sollen, gesenkt oder erhöht. Um zu vermeiden, daß durch das periodische Wiederzünden der Entladungsstrecke io Oberwellen in die Generatorspannung gelangen und ungünstige Regelzeiten entstehen, ist der Feldwicklung 14 eine Reihenschaltung aus einem Kondensator 15 und einem ohmschen Widerstand 16 parallel geschaltet, die so bemessen ist, daß die bekannte aperiodische Bedingung erfüllt ist. Dabei ist R14 der ohmsche Widerstand und L14 die Induktivität der Feldwicklung 14 und C15 die Kapazität des Kondensators 15.In the drawing, the invention is shown as an example. First, FIG. 1 shows a half-wave rectifier which operates on a consumer consisting of the two branches capacitance 15 and resistance 16 and inductance 14 with an ohmic component (not shown). The current, which is converted into direct current via a transformer and rectifier and passed via a measuring bridge, flows through two iron-enclosed chokes i and 2 with windings W1 and W2, the number of windings 1Y'1: W indicating the amplifier ratio. The capacitors 3 and 4, the resistor 5 and the mains windings 6 and 7 are switching elements for the phase shift. 8 is a grid protection resistor and g is a grid capacitor. Depending on the load conditions, the resulting voltage fluctuations are controlled and thus the voltage of the field winding 14 of the three-phase generator, the voltages of which are to be kept constant, is reduced or increased. In order to avoid that the periodic reignition of the discharge path io harmonics get into the generator voltage and unfavorable control times arise, the field winding 14 is connected in parallel with a series circuit of a capacitor 15 and an ohmic resistor 16, which is dimensioned so that the known aperiodic condition is satisfied. Here, R14 is the ohmic resistance and L14 is the inductance of the field winding 14 and C15 is the capacitance of the capacitor 15.
Ein weiteres Ausführungsbeispiel der Erfindung zeigt Fig. 2. Die Erregung der Feldwicklung 14 ist in diesem Beispiel für größere Leistungen erweitert. Zu diesen Zwecken sind in Zweiwegschaltung arbeitende Entladungsgefäße 21 und 22 vorgesehen, die durch entsprechende Gittersteuerung eine bestimmte Ruheöffnung für eine gesonderte Grunderregung erhalten können.Another embodiment of the invention is shown in FIG. 2. The excitation the field winding 14 is expanded in this example for greater powers. to Discharge vessels 21 and 22 working in two-way circuit are provided for this purpose, the appropriate grid control a certain rest opening for a separate Can get basic excitation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL3365A DE916718C (en) | 1950-08-19 | 1950-08-19 | Arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, especially those in one-way or two-way circuits, for voltage regulation of smaller machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL3365A DE916718C (en) | 1950-08-19 | 1950-08-19 | Arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, especially those in one-way or two-way circuits, for voltage regulation of smaller machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE916718C true DE916718C (en) | 1954-08-16 |
Family
ID=7256162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL3365A Expired DE916718C (en) | 1950-08-19 | 1950-08-19 | Arrangement for rectifiers working with grid-controlled vapor or gas discharge paths, especially those in one-way or two-way circuits, for voltage regulation of smaller machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE916718C (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE638659C (en) * | 1931-02-14 | 1936-11-20 | Aeg | Device for voltage regulation of alternators using grid-controlled steam or gas discharge paths |
-
1950
- 1950-08-19 DE DEL3365A patent/DE916718C/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE638659C (en) * | 1931-02-14 | 1936-11-20 | Aeg | Device for voltage regulation of alternators using grid-controlled steam or gas discharge paths |
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