DE633260C - Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network - Google Patents

Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network

Info

Publication number
DE633260C
DE633260C DES106445D DES0106445D DE633260C DE 633260 C DE633260 C DE 633260C DE S106445 D DES106445 D DE S106445D DE S0106445 D DES0106445 D DE S0106445D DE 633260 C DE633260 C DE 633260C
Authority
DE
Germany
Prior art keywords
direct current
audio frequency
remote control
conductors
frequency 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
DES106445D
Other languages
German (de)
Inventor
Dipl-Ing Georg Muensterer
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 AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 AG filed Critical Siemens Schuckertwerke AG
Priority to DES106445D priority Critical patent/DE633260C/en
Application granted granted Critical
Publication of DE633260C publication Critical patent/DE633260C/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

Einrichtung zur Fernsteuerung von Resonanzapparaten in Gleichstromnetzen mit Hilfe von den Leitern des Gleichstromnetzes überlagerten Tonfrequenzströmen Die Durchführung des an sich bekannten Überlagerungsferns.teuerverfahrens, bei dem im allgemeinen höher periodische, insbesondere tonfrequente Steuerströme über die Leiter eines Starkstromnetzes den an- diese Leiter angeschlossenen Empfangsapparaten (Resonanzrelais) zugeführt werden, stößt in Gleichstromnetzen auf erhebliche Schwierigkeiten. Die im Netz installierten Starkstromverbraucher sollen nämlich durch die überlagerungsspannung möglichst nicht beeinflußt werden.Device for remote control of resonance devices in direct current networks with the help of the conductors of the direct current network superimposed audio frequency currents The implementation of the known overlay remote control method in which generally higher periodic, in particular audio-frequency control currents via the Head of a high-voltage network to the receiving devices connected to these conductors (Resonance relays), encountered considerable difficulties in direct current networks. The high-voltage consumers installed in the network are supposed to be affected by the superimposed voltage as far as possible not be influenced.

Man hat daher- schon vorgeschlagen, die Starkstromverbraucher durch auf die Steuerfrequenz abgestimmte Sperrkreise für den Durchgang der Steuerenergie zu sperren. Diese Maßnahme ist jedoch umständlich und teuer.It has therefore already been proposed that the heavy current consumers through Blocking circuits matched to the control frequency for the passage of the control energy to lock. However, this measure is cumbersome and expensive.

Nach ,einem anderen Vorschlag wählt man die Steuerspannung wesentlich niedriger als die Netzspannung, so daß die Steuerenergie über die Starkstromverbraucher fließen kann, ohne diese zu gefährden. Da jedoch in diesem Fall die Starkstromverbraucher auch Steuerenergie verzehren, ergeben sich für den Fernsteuerbetrieb sehr große Stromstärken und dadurch sehr starke Spannungsabfälle, so daß in ausgedehnten Gleichstromnetzen insbesondere die an die äußersten Ausläufer des Netzes angeschlossenen Empfangsapparate eine zu kleine Steuerspannung erhalten und nicht mehr ansprechen. Man ist daher gezwungen, in ausgedehnten Gleichstromnetzen mehrere unter Umständen synchron arbeitende Fernsteuerzentralen vorzusehen.According to another suggestion, the control voltage is chosen essentially lower than the mains voltage, so that the control energy over the heavy current consumers can flow without endangering it. Since, however, in this case the heavy current consumers also consume control energy, the result for remote control operation is very large Current intensities and therefore very strong voltage drops, so that in extensive direct current networks especially the receiving devices connected to the outermost foothills of the network receive a control voltage that is too low and no longer respond. One is therefore forced, in extensive DC networks, several working synchronously under certain circumstances Provide remote control centers.

Die Erfindung ermöglicht auch in ausgedehnten Gleichstromnetzen einen einwandfreien Steuerbetrieb mit einer einzigen Fernsteuerzentrale.The invention also enables one in extensive direct current networks flawless control operation with a single remote control center.

Sie macht dabei von der in mit Wechselstrom arbeitenden Starkstromnetzen üblichen Transformierung der Spannung von einer höheren Übertragungsspannung auf die Gebrauchsspannung Gebrauch.In doing so, it makes use of the alternating current working power networks usual transformation of the voltage from a higher transmission voltage the use voltage use.

Erfindungsgemäß wird die Tonfrequenzspannung von der Aufdrückstelle zu den Verbrauchern durch gegen den Gleichstrom gesperrte Transformatoren so abgestuft, daß in dem Übertragungsnetz die Spannungsabfälle in mäßigen Grenzen bleiben. Zwischen die Primär- und Sekundärseite der Transformatoren werden an sich bekannte Sperreinrichtungen für die Tonfrequenzströme eingeschaltet.According to the invention, the audio frequency voltage is from the pressure point graduated to the consumers by transformers blocked against direct current, that the voltage drops in the transmission network remain within moderate limits. Between the primary and secondary sides of the transformers are blocking devices known per se switched on for the audio frequency currents.

Beispielsweise kann das Netz durch Sperrkreise in Abschnitte unterteilt sein, die durch gegen den Gleichstrom gesperrte übersetzungsvorrichtungen gekoppelt sind. Als übersetzungsvorrichtungen können beispielsweise Spannungsteiler, die aus mehreren Kondensatoren bestehen können, oder Transformatoren verwendet werden. Werden TransformatoTen zur Kopplung der Netzabschnitte benutzt, so schaltet man den Transformatbr" wicklungen zweckmäßig Kondensatorenöz;? die s.o. bemessen sind, daß durch sie gleiß;..-' zeitig die Transformatorverluste kompensiert'` werden. Statt dessen könnten. aber auch entsprechend geschaltete Gleichrichter zum Absperren der Transformatoren gegen den Gleichstrom benutzt werden.For example, the network can be divided into sections by blocking circuits be coupled by translation devices locked against the direct current are. As translation devices, for example, voltage dividers that consist of multiple capacitors can exist, or transformers are used will. If transformators are used to couple the network sections, it switches one of the transformer windings expediently capacitors? are that through them glitz; ..- 'the transformer losses are compensated for in good time' '. Instead, could. but also appropriately switched rectifiers to shut off the transformers can be used against the direct current.

Die Erfindung soll an Hand der Zeichnung näher ;.erläutert werden, in der ein Ausfüh-, rungsbeispiel des Gegenstandes der Erfindung dargestellt ist.The invention is to be explained in more detail with reference to the drawing, in which an Ausfüh-, approximately example of the subject matter of the invention is shown.

Mit i ist ein Gleichstromzweileiternetz -bezeichnet, das. von dem Gleichstromgenerator 2 gespeist wird. 3 ist die Fernsteuerzentrale, die aus dem Sendegenerator q. und dem Auf drück-Kransfoxmator 5 besteht. Bei 6 ist in den Zug des. einen Netzleiters ein auf den überlagerungsstrom abgestimmter Sperrkreis eingeschaltet, der in an sich bekannter Weise aus einer Drosselspule 7 und einem dazu parallel geschalteten Kondensator 8 besteht. Der Gleichstrombetrieb wird nach bekannten Gesetzen durch den Einbau dieser Drossel nicht gestört, da der Gleichstrom über die Drosselspule 7 ungehindert fließen kann, insbesondere dann, wenn man diese Sperrkreise gemäß Fig.2 als Resonanztransformator ausbildet. Die Sperrstelle ist für den Steuerbetrieb durch einen Transformator 9 überbrückt, dessen Wicklungen die Kondensatoren i o und i i vorgeschaltet sind, um, einen Kurzschluß des Gleichstromes über diese Wicklungen zu verhüten. Zweckmäßig wird die Größe dieser Kondensätoren so gewählt, daß durch den Transformator eine möglichst verlustlose Übertrag der Energie von einem Netzabschnitt in den anderen möglich ist. An dem mit 12 bezeichneten Netzteil sind die Empfangsapparate 13 angeschlossen. Die in der Aufdrückzentrale 3 überlagerte Spannung wird so gewählt, daß die Verluste durch -Spannungsabfälle in der Leitung i in erträglichen Grenzen bleiben. Der Transformator 9 hat ein Übersetzungsverhältnis, daß in dem Netzteil I2 die Betriebsspannung der Relais herrscht. -#Bai.dem beschriebenen und gezeichneten Ausflrungsbeispiel erfolgt die Überlagerung der Sfeuerenergie _ in Serie zum Netzgenerator. 'km kann aber auch sämtliche anderen möglichen überlagerungsschaltungen verwenden, beispielsweise kann die Energie auch parallel zum Netzgenerator aufgedrückt werden. Dabei ist jedoch dafür zu sorgen, daß der Netzgenerator von der überlagerungsenergie nicht mitgespeist wird. Bei längeren Leitungen kann es unter Umständen zweckmäßig sein, die Leitung mehrmals in der gleichen Weise zu unterteilen.A direct current two-wire network, which is fed by the direct current generator 2, is denoted by i. 3 is the remote control center, which consists of the transmitter generator q. and the press-on Kransfoxmator 5 consists. At 6, in the train of the. One power line, a blocking circuit tuned to the superimposed current is switched on, which, in a manner known per se, consists of a choke coil 7 and a capacitor 8 connected in parallel therewith. According to known laws, the direct current operation is not disturbed by the installation of this choke, since the direct current can flow unhindered through the choke coil 7, especially if these blocking circuits are designed as resonance transformers according to FIG. The blocking point is bridged for the control operation by a transformer 9, the windings of which the capacitors io and ii are connected upstream in order to prevent a short circuit of the direct current through these windings. The size of these capacitors is expediently chosen so that the transformer enables the energy to be transferred from one network section to the other with as little loss as possible. The receiving apparatuses 13 are connected to the power supply unit labeled 12. The voltage superimposed in the pressure center 3 is chosen so that the losses due to voltage drops in the line i remain within tolerable limits. The transformer 9 has a transformation ratio that the operating voltage of the relay prevails in the power supply unit I2. - # In the example described and drawn, the fire energy is superimposed in series with the network generator. However, km can also use all other possible superimposing circuits, for example the energy can also be applied in parallel to the network generator. However, it must be ensured that the network generator is not fed by the superimposed energy. In the case of longer lines, it may be useful to subdivide the line several times in the same way.

Erwähnt sei schließlich, daß die Anwendung des Verfahrens gemäß der Erfindung nicht auf Gleichstromzweileiteranlagen beschränkt ist, sondern mit den gleichen Vorteilen auch auf Gleichstromdreileiteranlagen angewendet werden kann.Finally, it should be mentioned that the application of the procedure according to Invention is not limited to direct current two-wire systems, but with the The same advantages can also be applied to direct current three-wire systems.

Claims (2)

PATENTANSPRÜCHE: i. Einrichtung zur Fernsteuerung von Resonanzapparaten in Gleichstromnetzen mit Hilfe von den Leitern des Gleichstromnetzes überlagerten Tonfrequenzströmen, dadurch gekennzeichnet, daß die Tonfrequenzspannung von der Aufdrückstelle zu den Verbrauchern durch gegen den Gleichstrom gesperrte Transformatoren so abgestuft ist, daß in dem Übertragungsnetz die Spannungsabfälle in mäßigen Grenzen bleiben und daß zwischen der Primär- und Sekundärseite der Transformatoren an sich bekannte Sperreinrichtungen für die Tonfrequenzströme eingeschaltet sind. PATENT CLAIMS: i. Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network, characterized in that the audio frequency voltage from the pressure point to the consumers is graduated by transformers blocked against the direct current so that the voltage drops in the transmission network remain within moderate limits and that between the primary and secondary side of the transformers known blocking devices for the audio frequency currents are switched on. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß den Transformatonvicklungen Kondensatoren vorgeschaltet sind, deren Kapazität die Streuinduktivität der Transformatoren kompensiert.2. Establishment according to claim i, characterized in that the transformer windings have capacitors are connected upstream, the capacity of which compensates for the leakage inductance of the transformers.
DES106445D 1932-09-29 1932-09-29 Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network Expired DE633260C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES106445D DE633260C (en) 1932-09-29 1932-09-29 Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES106445D DE633260C (en) 1932-09-29 1932-09-29 Device for remote control of resonance devices in direct current networks with the help of audio frequency currents superimposed on the conductors of the direct current network

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DE633260C true DE633260C (en) 1936-07-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954347C (en) * 1938-09-28 1956-12-13 Aeg Procedure for remote switching by changing the voltage
DE1055115B (en) * 1953-10-14 1959-04-16 Landis & Gyr Ag Ripple control transmitter for superimposing a power network over its natural energy propagation range with audio-frequency signal voltages

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954347C (en) * 1938-09-28 1956-12-13 Aeg Procedure for remote switching by changing the voltage
DE1055115B (en) * 1953-10-14 1959-04-16 Landis & Gyr Ag Ripple control transmitter for superimposing a power network over its natural energy propagation range with audio-frequency signal voltages

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