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DE600443C - Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate - Google Patents

Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate

Info

Publication number
DE600443C
DE600443C DES95953D DES0095953D DE600443C DE 600443 C DE600443 C DE 600443C DE S95953 D DES95953 D DE S95953D DE S0095953 D DES0095953 D DE S0095953D DE 600443 C DE600443 C DE 600443C
Authority
DE
Germany
Prior art keywords
vectors
angle
voltage
regulate
regulating
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
DES95953D
Other languages
German (de)
Inventor
Dipl-Ing Dr Robert Schimpf
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.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens Corp filed Critical Siemens Schuckertwerke AG
Priority to DES95953D priority Critical patent/DE600443C/en
Application granted granted Critical
Publication of DE600443C publication Critical patent/DE600443C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for AC mains or AC distribution networks
    • H02J3/04Circuit arrangements for AC mains or AC distribution networks for connecting networks of the same frequency but supplied from different sources
    • H02J3/06Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback
    • G05D3/14Control of position or direction using feedback using an analogue comparing device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46Controlling of the sharing of output between the generators, converters, or transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Eletrric Generators (AREA)

Description

Verfahren zum Regeln der Leistungsabgabe von Wechselstromerzeugern, bei dem zur Regelung der Winkel zwischen zwei Vektoren herangezogen wird Es ist bereits vorgeschlagen worden, die Leistungsabgabe von Wechselstromerzeugern in Abhängigkeit von dem Winkel zwischen zwei Vektoren zu regeln. Man kann beispielsweise die Energiezufuhr zu der Antriebsmaschine des Generators in Abhängigkeit von dem Winkel zwischen den Spannungsvektoren an zwei verschiedenen Punkten einer Leitung beeinflussen. Man kann die Energiezufuhr aber auch abhängig von der Winkellage der Netzspannung gegenüber dem Verkehr der elektromotorischen Kraft des Generators bzw. der Lage des Polrandes gegenüber dem Spannungsvektor steuern. Es ist auch schon vorgeschlagen worden, zwecks Aufrechterhaltung der Parallelschaltbereitschaft von ungekuppelten Netzen die Winkellage zwischen den Spannungsvektoren dieser Netze auf einen bestimmten Wert einzustellen. Bei sämtlichen der erwähnten Regelverfahren tritt eine Beeinflussung der Energiezufuhr zu den Kraftmaschinen erst dann ein, wenn bereits eine Winkelveränderung stattgefunden hat.Procedure for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate Es ist has already been proposed, depending on the power output of alternators on the angle between two vectors to regulate. One can, for example, the energy supply to the prime mover of the generator depending on the angle between the Affect voltage vectors at two different points on a line. Man However, the energy supply can also depend on the angular position of the mains voltage the traffic of the electromotive force of the generator or the position of the pole edge control against the voltage vector. It has also been suggested for the purpose of Maintaining the readiness for parallel switching of uncoupled networks the angular position to set a certain value between the voltage vectors of these networks. In all of the control methods mentioned, the energy supply is influenced to the prime mover only when an angle change has already taken place Has.

Gemäß der Erfindung kann die Empfindlichkeit der Regelanordnung noch gesteigert werden, wenn man die Energiezufuhr von der Änderungsgeschwindigkeit des Winkels zwischen den Vektoren abhängig macht, und zwar im Sinne einer Verminderung der Änderungsgeschwindigkeit des Winkels. Man kann beispielsweise so vorgehen, daß man mit Hilfe zweier Wechselspannungen, welche den Vektoren entsprechen, eine Spannung erzeugt, deren Größe dem Winkel zwischen den Vektoren entspricht. Zu diesem Zwecke genügt es, die beiden Spannungen mit Hilfe eines Transformators in Reihe zu schalten.According to the invention, the sensitivity of the control arrangement can still can be increased if the energy supply depends on the rate of change of the Angle between the vectors makes dependent, in the sense of a reduction the rate of change of the angle. One can, for example, proceed in such a way that one can create a voltage with the help of two alternating voltages, which correspond to the vectors generated whose size corresponds to the angle between the vectors. To this end it is sufficient to connect the two voltages in series using a transformer.

In Fig. z ist ein Ausführungsbeispiel der Erfindung dieser Art dargestellt. z und 2 sind zwei Transformatoren. Es sei angenommen, daß dem Transformator r eine Spannung zugeführt wird, die durch den Vektor 3 in Fig. 2 dargestellt ist. Es sei ferner angenommen, daß dem Transformator 2 eine durch den Vektor 4 in Fig. 2 dargestellte Spannung zugeführt wird. Die Sekundärwicklungen der Transformatoren r und 2 sind gegeneinandergeschaltet, so daß an den Punkten 5 und 6 eine Spannung herrscht, die dem Vektor 7 (Fig. 2) entspricht. Die Größe dieses Vektors entspricht dem Winkel zwischen den Vektoren 3 und 4. Um die Änderungsgeschwindigkeit des Winkels zwischen den Vektoren zu ermitteln und zur Regelung heranzuziehen, ist es notwendig, eine Spannung zu erzeugen, die dem Differentialquotienten der Amplitudenkurv e derjenigen Wechselspannung entspricht, die durch den Vektor 7 dargestellt wird. Zu diesem Zweck kann man die Spannung zwischen den Punkten s und 6, die dem Vektor 7 entspricht, mit Hilfe des Gleichrichters 8 gleichrichten. Man erhält dann eine Gleichspannung, deren Größe der Größe des Vektors 7 entspricht. Der Verlauf dieser Gleichspannung entspricht dem Verlauf der Amplitudenkurve der durch den Vektor 7 dargestellten Wechselspannung. Der Differentialquotient der Amplitudenkurve wird mit Hilfe des Transformators 9 gewonnen, dessen Primärwicklung von dem vom Gleichrichter 8 gelieferten Gleichstrom gespeist wird. Zur Beseitigung von kleinen Schwankungen der Gleichspannung kann man einen Kondensator io vorsehen. Die Sekundärwicklung des Transformators 9 wird an das Steuerrelais i i angeschlossen, durch das die Energiezufuhr zu den Kraftmaschinen beeinflußt wird.In Fig. Z, an embodiment of the invention of this type is shown. z and 2 are two transformers. It is assumed that the transformer r a Voltage represented by vector 3 in FIG. 2 is supplied. Be it Assume further that the transformer 2 is one represented by the vector 4 in FIG Voltage is supplied. The secondary windings of transformers r and 2 are switched against each other, so that there is a voltage at points 5 and 6, the corresponds to vector 7 (Fig. 2). The size of this vector corresponds to the angle between vectors 3 and 4. To determine the rate of change of the angle between To determine the vectors and to use them for regulation, it is necessary to use a To generate voltage corresponding to the differential quotient of the amplitude curve e of those AC voltage corresponds to the Vector 7 is represented. For this purpose one can determine the voltage between the points s and 6 which make up the vector 7 corresponds to rectify with the aid of the rectifier 8. You then get one DC voltage, the magnitude of which corresponds to the magnitude of the vector 7. The course of this DC voltage corresponds to the course of the amplitude curve of the vector 7 AC voltage shown. The differential quotient of the amplitude curve is obtained with the help of the transformer 9, the primary winding of which differs from that of the rectifier 8 supplied direct current is fed. To eliminate small fluctuations A capacitor can be provided for the direct voltage. The secondary winding of the transformer 9 is connected to the control relay i i, through which the energy supply to the prime movers.

Die Anordnung wirkt in der Weise, daß bei Änderungen der Winkellage zwischen den Vektoren 3 und 4 sich die Größe des Vektors 7 ändert. Dadurch ändert sich auch die vom Gleichrichter 8 gelieferte Spannung und der durch die Wicklung des Transformators 9 fließende Strom. An der Sekundärseite des Transformators 9 entsteht dann eine Spannung, die der Änderungsgeschwindigkeit der Größe des Vektors 7 und damit der Geschwindigkeit der Winkeländerung zwischen den Vektoren 3 und 4 entspricht. Es kann zweckmäßig sein, in die Primärwicklung des Transformators 9 einen besonderen Widerstand einzuschalten oder die Wicklung mit genügend hohem Eigenwiderstand auszubilden, damit die Sekundärspannung genau der Änderungsgeschwindigkeit der vom Gleichrichter 8 gelieferten Spannung entspricht. Anstatt die Änderungsgeschwindigkeit der vom Gleichrichter 8 gelieferten Spannung mit Hilfe eines Transformators auf ein Relais zu übertragen, kann man auch das Relais unter Zwischenschaltung eines Kondensators an den Gleichrichter anschließen. Es ist zweckmäßig, außer, der beschriebenen Regleranordnung noch einen weiteren Regler zu verwenden, der in Abhängigkeit von der Größe des Winkels zwischen den Vektoren regelt, damit langsame Winkeländerungen nicht zum Außertrittfallen führen.The arrangement works in such a way that when the angular position changes between the vectors 3 and 4 the size of the vector 7 changes. This changes also the voltage supplied by the rectifier 8 and that through the winding of the transformer 9 current flowing. On the secondary side of the transformer 9 A voltage then arises which corresponds to the rate of change in the size of the vector 7 and thus the speed of the change in angle between vectors 3 and 4 is equivalent to. It can be useful to use the primary winding of the transformer 9 to switch on a special resistor or the winding with a sufficiently high inherent resistance train so that the secondary voltage exactly the rate of change of the Rectifier 8 corresponds to the voltage supplied. Instead of the rate of change the voltage supplied by the rectifier 8 with the aid of a transformer To transmit a relay, one can also use the relay with the interposition of a Connect the capacitor to the rectifier. It is appropriate, except as described Controller arrangement to use another controller that depends on regulates the size of the angle between the vectors, so that slow angle changes do not lead to falling out of step.

Claims (1)

#PIATENTANSPRÜCHE: i. Verfahren zum Regeln der Leistungsabgabe von Wechselstromerzeugern, bei dem zur Regelung der Winkel zwischen zwei Vektoren herangezogen wird, dadurch gekennzeichnet, daß die Energiezufuhr zu der Antriebsmaschine des Stromerzeugers in Abhängigkeit von der Änderungsgeschwindigkeit des Winkels zwischen den Vektoren im Sinne einer Verminderung der Änderungsgeschwindigkeit des Winkels beeinflußt wird. a. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Differenzspannung zwischen zwei Spannungen, die den zur Regelung herangezogenen Vektoren entsprechen, gleichgerichtet und über einen Transformator oder Kondensator einem die Energiezufuhr beeinflussenden Relais zugeführt wird.# PARTY CLAIMS: i. Procedure for regulating the output of Alternating current generators, which are used to regulate the angle between two vectors is, characterized in that the energy supply to the prime mover of the Power generator depending on the rate of change of the angle between the vectors in the sense of reducing the rate of change of the angle being affected. a. Method according to Claim i, characterized in that the differential voltage between two voltages that correspond to the vectors used for regulation, rectified and the energy supply via a transformer or capacitor influencing relay is supplied.
DES95953D 1931-01-04 1931-01-04 Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate Expired DE600443C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES95953D DE600443C (en) 1931-01-04 1931-01-04 Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES95953D DE600443C (en) 1931-01-04 1931-01-04 Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate

Publications (1)

Publication Number Publication Date
DE600443C true DE600443C (en) 1934-07-23

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DES95953D Expired DE600443C (en) 1931-01-04 1931-01-04 Method for regulating the power output of alternating current generators, in which the angle between two vectors is used to regulate

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767702C (en) * 1936-10-16 1953-03-30 Siemens App Und Maschinen G M Device for producing an alternating voltage proportional to the error speed from the variable path error alternating voltage that arises in an electrical transmission device
DE768075C (en) * 1936-10-20 1955-06-16 Siemens App Method for producing a voltage proportional to the error rate from the error alternating voltage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767702C (en) * 1936-10-16 1953-03-30 Siemens App Und Maschinen G M Device for producing an alternating voltage proportional to the error speed from the variable path error alternating voltage that arises in an electrical transmission device
DE768075C (en) * 1936-10-20 1955-06-16 Siemens App Method for producing a voltage proportional to the error rate from the error alternating voltage

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