DE463147C - Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs - Google Patents

Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs

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Publication number
DE463147C
DE463147C DEA47693D DEA0047693D DE463147C DE 463147 C DE463147 C DE 463147C DE A47693 D DEA47693 D DE A47693D DE A0047693 D DEA0047693 D DE A0047693D DE 463147 C DE463147 C DE 463147C
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DE
Germany
Prior art keywords
reactive power
active
machines
cascade
phase collector
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
Application number
DEA47693D
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German (de)
Inventor
Dipl-Ing Wilhelm Weiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
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Filing date
Publication date
Application filed by AEG AG filed Critical AEG AG
Priority to DEA47693D priority Critical patent/DE463147C/en
Application granted granted Critical
Publication of DE463147C publication Critical patent/DE463147C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/34Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/38Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a commutator machine

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Description

Selbsttätige Regelung der Wirk- und Blindleistung von in Kaskade mit Drehstromkollektormaschinen geschalteten Asynchronmaschinen durch zwei Regelorgane In manchen Fällen, beispielsweise bei Umformersätzen, die zur Kupplung zweier Wechselstromnetze verschiedener Frequenz dienen, ist es erwünscht, die Wirk- und die Blindleistung des asynchronen Gliedes selbsttätig zu regeln. Zu diesem Zwecke wird bekanntlich die Asynchronmaschine mit irgendeiner Drehstromkollektormaschine in Kaskade geschaltet und das Feld der letzteren in Abhängigkeit von der Wirk- und Blindleistung geregelt, beispielsweise durch zwei Doppeldrehtransformatoren, von denen der eine zur Regelung der Wirkleistung dient, während der andere die Regelung der Blindleistung übernimmt.Automatic regulation of active and reactive power from in cascade with Three-phase collector machines switched asynchronous machines by two control organs In some cases, for example with converter sets that are used to couple two AC networks serve different frequencies, it is desirable to have the active and reactive power of the asynchronous member to regulate automatically. For this purpose it is known the asynchronous machine is connected in cascade with any three-phase collector machine and the field of the latter is regulated depending on the active and reactive power, for example with two double rotary transformers, one of which is used for regulation the active power, while the other takes over the regulation of the reactive power.

Die selbsttätige Regelung der Wirk- und Blindleistung beschränkt sich nicht auf Umformersätze. Sie wird auch bei Doppelgeneratoren gebraucht, die zwei verschiedene Netze speisen, aber von einer gemeinsamen Kraftmaschine angetrieben werden, ferner bei Asynchronmotoren, bei denen von einer gewissen Belastung an die Aufnahme elektrischer Leistung erschwert wird, um die Schwungmassen des Motors zur Arbeitsleistung heranzuziehen.The automatic regulation of the active and reactive power is limited not on converter sets. It is also used in double generators, the two feed different networks, but driven by a common prime mover be, furthermore with asynchronous motors, where of a certain load to the Consumption of electrical power is made more difficult to the centrifugal masses of the motor To use work performance.

Die Abb. I zeigt ein Ausführungsbeispiel. Der Primärteil der Asynchronmaschine v liegt am Netz n, während der Sekundärteil über Schleifringes und die Kompensationswicklung zu den Bürsten des Kommutators k der Drehstromkollektormaschine führt, auf deren Welle ein in das Netz n zurückarbeitender Synchron- oder Asynchrongenerator g angeordnet ist. Die Regelung der Wirk- und Blindleistung geschieht durch zwei Doppeldrehte ansformatoren, deren Primärwicklungen a, b, c, d in Reihenparallelschaltung verbunden sind, während die zugehörigen Sekundärwicklungen a', b', c', d' in Reihe liegen. DieDrehtransformatoren werden mit Schlupffrequenz gespeist und sind sekundär an die Ständererregerwicklung f der Kollektormaschine angeschlossen. Die Regelung der Wirkleistung übernimmt der Doppeldrehtransformator a a', b b', während die Regelung der Blindleistung von dem zweiten Doppeldrehtransformator c c', d d' übernommen wird. Die resultierenden Sekundärspannungen der beiden Doppeldrehtransformatoren stehen zueinander annähernd phasensenkrecht. Der erste Doppeldrehtransformator beeinflußt jedoch, obgleich nur in geringem Maße, auch die Blindleistung und umgekehrt. Falls die Wirk- und die Blindleistung selbsttätig geregelt werden sollen, so arbeiten die zur Betätigung der Doppeldrehtransformatoren notwendigen Regelorgane nicht unabhängig voneinander, was Pendelerscheinungen zur Folge haben kann. Dieser Nachteil wird nach der Erfindung dadurch beseitigt, daß man für ungleich schnelle Wirkungsweise der beiden Regelorgane sorgt, indem beispielsweise das eine Regelorgan als Schnellregler, das andere als Langsamregler ausgebildet wird.Fig. I shows an embodiment. The primary part of the asynchronous machine v is connected to the network n, while the secondary part is via the slip ring and the compensation winding leads to the brushes of the commutator k of the three-phase collector machine, on whose Shaft arranged a synchronous or asynchronous generator g working back into the network n is. The regulation of the active and reactive power is done by two double turns Ansformatoren, whose primary windings a, b, c, d connected in series parallel connection are, while the associated secondary windings a ', b', c ', d' are in series. The rotary transformers are fed with slip frequency and are secondary on the stator excitation winding f of the collector machine is connected. The scheme of Active power is taken over by the double rotary transformer a a ', b b', during the regulation the reactive power taken over by the second double rotary transformer c c ', d d' will. The resulting secondary voltages of the two double rotary transformers are approximately perpendicular to each other. The first double rotary transformer affects however, although only to a small extent, also the reactive power and vice versa. If the active and reactive power should be regulated automatically, so work the regulating organs necessary to operate the double rotary transformers are not independent from each other, which can result in pendulum phenomena. This Disadvantage is eliminated according to the invention that one for unequal fast The mode of action of the two regulating organs ensures, for example, one regulating organ as a fast regulator, the other is designed as a slow regulator.

Diese Ausführung der Regelorgane kann selbstverständlich auf die verschiedensten Kaskadenanordnungen angewendet werden. Beispielsweise kann gemäß Abb. 2 an Stelle der beiden Drehtransformatoren eine besondere Erregermaschine treten, die Strom von der Schlupffrequenz zur Speisung der Erregerwicklung f der Drehstromkollektormaschine k liefert und deren Spannung dann gemäß der Erfindung geregelt wird. Auch kann gemäß Abb. 3 die Kollektormaschine k synchron mit dem Vordermotor v angetrieben und alsdann über zwei Doppeldrehtransformatoren mit Netzfrequenz erregt werden. Auch hier kann ähnlich Abb. 2 die Drehstromkollektormaschine k durch eine besondere Erregermaschine erregt werden. Diese ist gemäß Abb. 4 ein Synchrongenerator e, der durch einen Synchronmotor m angetrieben wird. Der Synchrongenerator e besitzt zwei aufeinander senkrecht stehende, von Gleichstrom erregte Feldwicklungen, von denen die eine durch einen Schnellregler, die andere durch einen Langsamregler selbsttätig geregelt wird.This execution of the regulating organs can of course be applied to the most varied Cascade arrangements are applied. For example, according to Fig. 2 in place The two rotary transformers connect a special exciter that generates electricity from the slip frequency to feed the field winding f of the three-phase collector machine k supplies and the voltage of which is then regulated according to the invention. Also can according to Fig. 3 the collector machine k driven synchronously with the front motor v and then are excited via two double rotary transformers with mains frequency. Here, too, can similar to Fig. 2 the three-phase collector machine k by a special exciter machine get excited. According to Fig. 4, this is a synchronous generator e, which is driven by a synchronous motor m is driven. The synchronous generator e has two mutually perpendicular, field windings excited by direct current, one of which is controlled by a high-speed regulator, the other is regulated automatically by a slow regulator.

Das Wesen der Regelung, gleichviel, ob sie unmittelbar auf einen Wechselstrom- oder einen Gleichstromkreis einwirkt, besteht in jedem Falle darin, daß das eine Regelorgan langsam, das andere rasch wirkt, zum Zwecke, Pendelungen zu vermeiden.The essence of the regulation, regardless of whether it is directly related to an alternating current or a DC circuit acts, is in each case that one The regulating organ works slowly, the other acts quickly, for the purpose of avoiding oscillation.

Claims (1)

PATENTANSPRUCH: Selbsttätige Regelung der Wirk- und Blindleistung von in Kaskade mit Drehstromkollektormaschinen geschalteten Asynchronmaschinen durch zwei Regelorgane (wie z. B. Doppeldrehtransformatoren), von denen das eine zur Regelung der gelieferten Wirkleistung und das andere zur Regelung der gelieferten Blindleistung dient, dadurch gekennzeichnet, daß die beiden Regelorgane ungleich schnell wirken, indem beispielsweise das eine als Schnellregler, das andere als Langsamregler ausgebildet ist.PATENT CLAIM: Automatic regulation of active and reactive power of asynchronous machines connected in cascade with three-phase collector machines two regulating organs (such as double rotary transformers), one of which is used for regulation the delivered active power and the other to regulate the delivered reactive power serves, characterized in that the two control organs act unequally quickly, in that, for example, one is designed as a fast regulator, the other as a slow regulator is.
DEA47693D 1926-05-06 1926-05-06 Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs Expired DE463147C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA47693D DE463147C (en) 1926-05-06 1926-05-06 Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA47693D DE463147C (en) 1926-05-06 1926-05-06 Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs

Publications (1)

Publication Number Publication Date
DE463147C true DE463147C (en) 1928-07-23

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Application Number Title Priority Date Filing Date
DEA47693D Expired DE463147C (en) 1926-05-06 1926-05-06 Automatic regulation of the active and reactive power of asynchronous machines connected in cascade with three-phase collector machines by two regulating organs

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