DE530144C - Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows - Google Patents

Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows

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Publication number
DE530144C
DE530144C DEM102993D DEM0102993D DE530144C DE 530144 C DE530144 C DE 530144C DE M102993 D DEM102993 D DE M102993D DE M0102993 D DEM0102993 D DE M0102993D DE 530144 C DE530144 C DE 530144C
Authority
DE
Germany
Prior art keywords
winding
transformer
compensation
mains current
currents
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
DEM102993D
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German (de)
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.)
OTTO MUCK DIPL ING
Original Assignee
OTTO MUCK DIPL ING
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 OTTO MUCK DIPL ING filed Critical OTTO MUCK DIPL ING
Priority to DEM102993D priority Critical patent/DE530144C/en
Application granted granted Critical
Publication of DE530144C publication Critical patent/DE530144C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

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

Description

Transformator zur Serienüberlagerung von Starkstromnetzen mit Strömen netzfremder Frequenz mit einer Kompensationswicklung, deren Feld der vom Netzstrom durchflossenen Transformatorwicklung entgegengesetzt gerichtet ist Es ist bekannt, Starkstromnetze, insbesondere Gleichstromdreileiternetze, für Fernmelde- oder Fernsteuerzwecke dadurch mit Signalströmen von gegebenenfalls verschiedenen Frequenzen: zu überlagern, daß man entweder in den Nulleiter, wie in Abb. r angedeutet, oder in einen Außenleiter oder in die Verbindungsleitung zwischen der dem Netzgenerator parallel geschalteten Batterie und den Außenleitern einen Überlagerungstransformator T einschaltet, der oberspannungsseitig von der Überlagerungsmaschine G gespeist wird.Transformer for the series superposition of heavy current networks with currents non-network frequency with a compensation winding, the field of which is that of the mains current through which the transformer winding flows in the opposite direction It is known Power networks, in particular direct current three-wire networks, for telecommunication or remote control purposes thus with signal currents of possibly different frequencies: to be superimposed, that one is either in the neutral conductor, as indicated in Fig. r, or in an outer conductor or in the connection line between the parallel connected to the network generator Battery and the outer conductors a superposition transformer T turns on, the is fed from the superimposition machine G on the high-voltage side.

Diese bekannte Anordnung hat den Nachteil, daß der Transformator T bei starken Netz- bzw. Ausgleichsströmen übermagnetisiert wird; es ist naheliegend, hiergegen einen gegebenenfalls regelbaren Luftspalt im Eisenkern des Transformators anzubringen, um den magnetischen Widerstand des Kernes zu vergrößern mit der Folge, daß der vom Netzstrom induzierte Fluß entsprechend verkleinert wird. Dieser Luftsphlt wirkt aber auch nachteilig für die Überlagerungseinrichtung, da der Transformator T einen entsprechend höheren Magnetisierungsstrom aufnimmt und die Maschine G deshalb mit einem schlechten Leistungsfaktor arbeitet.This known arrangement has the disadvantage that the transformer T is over-magnetized in the case of strong mains or equalizing currents; it is obvious, against this, an air gap in the iron core of the transformer that can be regulated if necessary to be attached in order to increase the magnetic resistance of the core with the result, that the flux induced by the mains current is reduced accordingly. This air space but also has a detrimental effect on the superimposition device, since the transformer T absorbs a correspondingly higher magnetizing current and the machine G therefore works with a poor power factor.

Man kann diesen Nachteil dadurch beseitigen, daß man auf den Transformator T eine dritte Wicklung .aufbringt, der man mittels einer elektrischen Maschine Strom von solcher Größe und Phajse zuführt, da,ß bei normalen Belastungsverhältnissen die magnetisierende Wirkung der in den Zug des Netzleiters eingeschalteten Wicklung in der Hauptsache aufgehoben wird. Diese Einrichtung beseitigt aber die eingangs erwähnten Mängel nur bei einem bestimmten Belastungszustand des Netzes, bei zu schwachen Belastungen dagegen überwiegt die magnetisierende Wirkung der Kompensationswicklung, bei Überlastungen die magnetisierende Wirkung der Netzstromwicklung, so daß also trotz Anwendung der Kompensationswicklung bei diesen Belastungszuständen immer noch die lästige Vormagnetisierung des Überlagerungstransformators auftritt.This disadvantage can be eliminated by turning to the transformer T a third winding .bringt, which is supplied with current by means of an electrical machine of such a size and phase that, ß under normal load conditions the magnetizing effect of the winding connected to the line conductor in the main is repealed. However, this facility eliminates the one at the beginning mentioned defects only with a certain load condition of the network, with too weak On the other hand, loads outweigh the magnetizing effect of the compensation winding, in the event of overloads the magnetizing effect of the mains current winding, so that in spite of the use of the compensation winding in these load conditions the annoying premagnetization of the superposition transformer occurs.

Nach vorliegender Erfindung wird auch dieser Mangel noch beseitigt. Erfindungsgemäß wird die die Kompensationswicklung speisende Spannungsquelle in Abhängigkeit vom Netzstrom derart gesteuert, daß sich bei allen Belastungszuständen die Amperewindungen der Kompensations- und Netzstromwicklungen wenigstens annähernd aufheben.According to the present invention, this deficiency is also eliminated. According to the invention, the voltage source feeding the compensation winding is in Depending on the mains current controlled in such a way that in all load conditions the ampere-turns of the compensation and mains current windings at least approximately lift.

Eine Ausführungsform des Erfindungsgegenstandes ist in der Zeichnung (Abb. z) beispielsweise dargestellt.An embodiment of the subject matter of the invention is shown in the drawing (Fig. Z) shown for example.

Die Kompensationswicklung W ist über den den Kondensator C und die Drosselspule D enthaltenden Sperrkreis an den Anker Qu einer Kommutator- oder Unipolarmaschine angeschlossen. Die Feldwicklunglll dieser Maschine. ist. über den aus dem Kondensator C , D' bestehenden Sperrkreis an die Enden des im Zuge des Netzleiters eingeschalteten Widerstandes N' angeschlossen. Die beiden Sperrkreise sind derart abgestimmt, daß sie Ströme von der Frequenz des 1_Tberlagerungsgenerators G möglichst vollkommen drosseln.The compensation winding W is connected to the armature Qu of a commutator or unipolar machine via the blocking circuit containing the capacitor C and the choke coil D. The field winding III of this machine. is. connected via the blocking circuit consisting of the capacitor C , D ' to the ends of the resistor N' which is switched on in the course of the power line. The two blocking circuits are coordinated in such a way that they throttle currents of the frequency of the 1_Tüberlagungsgenerators G as completely as possible.

Die Einrichtung arbeitet auf folgende Weise: Fließt in dem Netzleiter kein Strom, so ist die Maschine M, Qu unerregt, also, spannungslos. Es fließt dann -auch durch die Kompensiationswicklung W kein Strom. Ist ein Netzstrom bestimmter Größe vorhanden, so entsteht zwischen. den Enden des Widerstandes N ein diesem Netzstrom proportionales Spannungsgefälle, und durch die Feldwicklung 11I fließt ebenfalls ein dem Netzstrom proportionaler Erregerstrom. Die von der Maschine Qu erzeugte Spannung ist wenigstens annähernd ihrer Erregung, also annähernd dem Netzstrom proportional, und da der Widerstand des Kompensationskreises praktisch als unveränderlich anzusehen ist, fließt auch durch die Kompensationswicklung W ein dem Netzstrom wenigstens annähernd proportionaler Strom. Das Windungsverhältnis zwischen der vom Netzstrom und Kompensationsstrom durchflossenen Wicklung ist entsprechend dem Proportionalitätsfaktor eingestellt. Auf diese Weise wird die magnetisierende Wirkung der vom Netzstrom 'durchflossenen Wicklung auf den Eisenkern stets annähernd ausgeglichen.The device works in the following way: Flows in the network conductor no current, the machine M, Qu is unexcited, that is, de-energized. It then flows - also through the compensation winding W no current. Is a mains current certain Size present, so arises between. the ends of the resistor N a this mains current proportional voltage gradient, and also flows through the field winding 11I an excitation current proportional to the mains current. The one generated by the machine Qu Voltage is at least approximately proportional to its excitation, i.e. approximately proportional to the mains current, and since the resistance of the compensation circuit can be regarded as practically unchangeable is, the mains current at least flows through the compensation winding W in approximately proportional current. The turns ratio between that of the mains current and compensation current flowing through the winding is according to the proportionality factor set. In this way, the magnetizing effect becomes that of the mains current 'flow through the winding on the iron core is always approximately balanced.

Da auch an den Klemmen der * vom Netzstrom durchflossenen Transformatorwicklung stets ein wenigstens annähernd dem Netzstrom proportionales Spannungsgefälle herrscht, kann die Feldwicklung 11I unter Umständen auch gleich an die Wicklung dieses Transformators angeschlossen werden.As also at the terminals of the * transformer winding through which the mains current flows there is always a voltage gradient that is at least approximately proportional to the mains current, the field winding 11I can also be connected to the winding of this transformer under certain circumstances be connected.

Man kann die Maschine Qu, 111 ersparen, wenn man, wie strichliert angedeutet, die Kompensationswicklung W unmittelbar an die Enden des Widerstandes N anschließt.One can save the machine Qu, 111 if one, as shown in dashed lines indicated, the compensation winding W directly to the ends of the resistor N connects.

Bei Wechselstromnetzen verwendet man zweckmäßig für die Speisung der Kompensationswicklung eine Synchronmaschine, die durch einen ans Netz angeschlossenen Synchronmotor angetrieben wird. Die Erregung des Synchrongenerators wird durch eine kegulierungsvo:rrichtung, beispielsweise durch ein dynamometrisches Stufenrelais, derart eingestellt, daß zwischen den Feldern der am Netz liegenden Wicklung und der Kompensationswicklung möglichste Proportionalität besteht.In the case of alternating current networks, it is advisable to use the Compensation winding of a synchronous machine, which is connected to the network by a Synchronous motor is driven. The excitation of the synchronous generator is through a control device, for example by means of a dynamometric step relay, set in such a way that between the fields of the winding and lying on the network the compensation winding is as proportional as possible.

Claims (5)

PATENTANSPRÜCHE: i. Transformator zur Serienüberlagerung von Starkstromnetzen mit Strömen netzfremder Frequenz mit einer Kompensationswicklung, deren Feld der vom Netzstrom durchflossenen Transformatorwicklung entgegengesetzt gerichtet ist, dadurch gekennzeichnet, daß die die Kompensationswicklung speisende Spannungsquelle in Abhängigkeit vom Netzstrom derart gesteuert wird, daß sich bei allen Belastungszuständen die Amperewindungen der Kompensations- und Netzstromwicklung wenigstens annähernd aufheben. PATENT CLAIMS: i. Transformer for series superimposition of power networks with currents of non-network frequency with a compensation winding whose field is the the transformer winding through which the mains current flows is in the opposite direction, characterized in that the voltage source feeding the compensation winding is controlled as a function of the mains current in such a way that in all load conditions the ampere turns of the compensation and mains current winding at least approximately lift. 2. Transformator nach Anspruch i, dadurch gekennzeichnet, daß als Spannungsquelle für die Kompensationswicklung eine Kommutatormaschine verwendet wird, deren Feldwicklung an die Enden eines im Zuge des Netzleiters eingeschalteten Widerstandes oder an die Klemmen der Netzstromwicklung des Transformators angeschlossen ist: 3. 2. Transformer according to claim i, characterized in that as a voltage source a commutator machine is used for the compensation winding, the field winding of which to the ends of a resistor switched on in the course of the power line or to the terminals of the transformer mains winding are connected: 3. Transformator nach Anspruch i, dadurch gekennzeichnet, daß als Spannungsquelle ein Synchrongenerator verwendet wird, dessen Erregung durch ein dynamometrisches Stufenrelais derart eingestellt wird, daß zwischen den Feldern der am Netze liegenden Wicklung und der Kompensationswicklung möglichste Proportionalität besteht. q.. transformer according to claim i, characterized in that a synchronous generator is used as the voltage source is used, the excitation of which is set by a dynamometric step relay is that between the fields of the winding lying on the network and the compensation winding as possible proportionality exists. q .. Transformator nach Anspruch i, dadurch gekennzeichnet, daß die Kompensationswicklung selbst an die Enden eines der Netzstromwicklung des Transformators vorgeschalteten, im Zuge des Netzleiters liegenden Widerstandes angeschlossen ist. Transformer according to claim i, characterized characterized in that the compensation winding itself is connected to the ends of one of the mains current winding The resistor connected upstream of the transformer and located in the course of the line conductor connected. 5. Transformator nach Anspruch. i bis q., dadurch gekennzeichnet, daß in den Stromkreis der Kompensationswicklung Sperrkreise oder Drosseln zwecks Unterdrückung von Strömen mit überlagerungsfrequenz eingeschaltet sind.5. Transformer according to claim. i to q., characterized by that in the circuit of the compensation winding for the purpose of blocking circuits or chokes Suppression of currents with superimposed frequencies are switched on.
DEM102993D 1928-01-12 1928-01-12 Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows Expired DE530144C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM102993D DE530144C (en) 1928-01-12 1928-01-12 Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM102993D DE530144C (en) 1928-01-12 1928-01-12 Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows

Publications (1)

Publication Number Publication Date
DE530144C true DE530144C (en) 1931-07-22

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DEM102993D Expired DE530144C (en) 1928-01-12 1928-01-12 Transformer for the series superposition of high-voltage networks with currents of non-network frequency with a compensation winding, the field of which is opposite to the transformer winding through which the mains current flows

Country Status (1)

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DE (1) DE530144C (en)

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