DE763437C - Device for generating control pulses in alternating current networks - Google Patents

Device for generating control pulses in alternating current networks

Info

Publication number
DE763437C
DE763437C DES135387D DES0135387D DE763437C DE 763437 C DE763437 C DE 763437C DE S135387 D DES135387 D DE S135387D DE S0135387 D DES0135387 D DE S0135387D DE 763437 C DE763437 C DE 763437C
Authority
DE
Germany
Prior art keywords
choke
networks
pulse
switched
control pulses
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
DES135387D
Other languages
German (de)
Inventor
Floris Dr Koppelmann
Rudolf Dr-Ing Schade
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 DES135387D priority Critical patent/DE763437C/en
Application granted granted Critical
Publication of DE763437C publication Critical patent/DE763437C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0076—Details of emergency protective circuit arrangements concerning transmission of signals by superposition on the watched current
    • 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
    • H02J13/0001—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 modification of a parameter of the network power signal
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location
    • 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

Description

Vorrichtung zur Erzeugung von Steuerimpulsen in Wechselstromnetzen Zusatz zum Patent 742 8,45 In dem Hauptpatent 742 845 ist eine Vorrichtung zum Erzeugen von Steuerimpulsen in Wechselstromverteilnetzen durch kurzzeitige Einschaltung einer Eisendrossel zwischen Netz und Spannungsquelle angegeben, bei welcher der Eisenkern der Drossel derart bemessen ist, daß bereits bei einem verhältnismäßig geringen Stromwert die. Sättigung eintritt.Device for generating control pulses in alternating current networks Addendum to Patent 742 8.45 In the main patent 742 845 is a device for generating of control pulses in AC distribution networks by briefly switching on a Iron choke specified between the mains and the voltage source, at which the iron core the throttle is dimensioned such that even at a relatively low Current value the. Saturation occurs.

Nach der Erfindung kann -diese Anordnung wertvoll dadurch verbessert werden, daß außer der Drossel zwischen zwei Phasen noch eine zusätzliche Kapazität eingeschaltet wird, um durch die Einschaltung :der Drossel eine Schwingung der Netzspannung anzufachen. In Fig. i der Zeichnung ,ist das Schaltbild einer derartigen Anordnung für ein Einphasennetz dargestellt. Mit i ist die Spannungsquelle bezeichnet, aus der :das schematisch durch den-Ohmschen Widerstand 2 und die Induktivität 3 wiedergegebeneVerbranehernetzgespeist wird. Mit 4 isteinÜberbrückungsschalter bezeichnet, mit dessen- Hilfe eine Drossel 5 in den Netzleiter eingeschaltet werden kann. Zwischen den beiden Phasen liegt ein Kondensator 6. Mit 7 ist eine Empfangseinrichtung bezeichnet, die aus einem Transformator 8 und :einem vorgeschalteten Kondensator g besteht, von dem aus über einen Gleichrichter io ein Relais i z gespeist wird. das seinerseits ein Schütz 12 betätigen kann. In Fig. 2 sind neben°inander als Vergleich zwei Kurven u und Ft gezeichnet, wobei die Kurve u den Einfluß der eingeschalteten Drossel auf die Netzspannung bei einem Kosinus oT von o,9 zeigt. Hierbei sind die Zacken c, die durch die plötzlicheWiderstands- änderung bei Stromnulldurchgang hervor- gerufen «-erden. deutlich zu @et"lzenneti. Die Kurve b zeigt den Verlauf der Spannung bei der Verwendung der zusätzlichen Kapazität an, wobei deutlich ersichtlich ist, daß durch die Einschaltung eine Schwingung der Netz- spannung angefacht wird, die rasch abklingt. Durch eine derartige Schwingung wird die Verzerrung d, -r Netzspannung in ihrer Wirkung verstärkt und der Empfang er- leichtert. Mit besonderem Vorteil wird für den Empfang ein Relais verwendet, das auf höhe Werte der Spannungssteilheit, also auf hohe Werte von dE, anspricht. Mit besonderem Vorteil wird weiter dem Empfangsrelais eine hintereinandergeschaltete Induktivität und Kapazität, wie diese im Aus- führungsbeispiel durch :den Transformator S und den Kondensator g gebildet ist, vor- geschaltet, die so dimensioniert sind, daß bei der erzeugten Hochfrequenz entsprechend den angefachten Schwingungen der größte Teil des Spannungsabfalles praktisch an der Induk- tiv ität liegt. Auf diese Weise können die Hoch- frequenzschwingungen zur Auslösung des Relais praktisch voll ausgenutzt werden. Es ist möglich, die Einschaltung derartiger Drosseln zur Kommandoübertragung in allen Phasen vorzusehen, jedoch empfiehlt es sich, auch bei dreiphasigen Netzen, wie das bereits in dem Hauptpatent angegeben ist, die Ein- schaltung nur in einer Phase vorzunehmen. Soweit es sich um Netze handelt, die von mehrer_°a Stellen bzw. mehreren Seiten: gespeist werden, ist es erforderlich, eitle gleichartige und gleichzeitige Beeinflussung in allen Zu- leitungen vorzunehmen. Nach der Erfindung kann in dieser Hinsicht für viele Fälle eine °rhebliche Vereinfachung dadurch erreicht werden. daß für die Dauer der Kommandogabe alle Zuleitungen bis auf eine Hauptspeise- leitung abgeschaltet werden und die Impulse lediglich in dieser Hauptspeiseleitung gegeben werden. Dies bedeutet eine erhebliche Ver- einfachung hinsichtlich der Steuerung der Impulsgebung und wird in den meisten Fällen auch unter Berücksichtigung der Verschiebung im Spannungsabfall usw., die durch eine der- artige U mschaItung zustande kommt, zulässig sein. Es sind bereits Umformer bekanntgeworden, bei denen eine ähnliche Drosselspule in den Stromkreis eingeschaltet ist, um durch Erzeugung einer stromschwachen Pause in der -Nähe der Stromnulldurchgänge den Unterbrechungs- oder Kommutierungsvorgang zu vereinfachen.According to the invention, this arrangement can be improved in a valuable way in that, in addition to the choke, an additional capacitance is switched on between two phases in order to fan an oscillation of the mains voltage by switching on: the choke. In Fig. I of the drawing, the circuit diagram of such an arrangement is shown for a single-phase network. The voltage source i denotes from which: the branch network, shown schematically by the ohmic resistance 2 and the inductance 3, is fed. A bridging switch is denoted by 4, with the aid of which a throttle 5 can be switched into the power line. A capacitor 6 is located between the two phases. 7 denotes a receiving device which consists of a transformer 8 and: an upstream capacitor g, from which a relay iz via a rectifier io is fed. that in turn is a contactor 12 can operate. In Fig. 2 are next to each other as a comparison two curves u and Ft are drawn, the Curve u the influence of the switched on Choke on the line voltage at one Shows cosine oT of o.9. Here are the Spikes c, caused by the sudden resistance change at current zero crossing. called «- earth. clearly to @et "lzenneti. The Curve b shows the course of the voltage at using the additional capacity on, whereby it can be clearly seen that through the Switching on an oscillation of the network tension is fanned, which quickly subsides. Such a vibration is the Distortion d, -r line voltage in their The effect is increased and the reception eases. It is particularly advantageous for the Reception uses a relay that is on high Values of the voltage steepness, i.e. high Values of dE, responds. The Receive relay a series-connected Inductance and capacitance, as shown in Execution example through: the transformer S and the capacitor g is formed, before- switched, which are dimensioned so that at the generated high frequency according to the fanned vibrations for the most part of the voltage drop practically at the induction tiv ity lies. In this way, the high- frequency oscillations to trigger the Relays are practically fully utilized. It is possible to include such Chokes for command transfer in all Phases, but it is advisable to even with three-phase networks, like that already is indicated in the main patent, the switching can only be carried out in one phase. As far as networks are concerned that are operated by several_ ° a places or several pages: fed it is necessary to be vain like and simultaneous influencing in all to make lines. According to the invention can be a for many cases in this regard Significant simplification achieved thereby will. that for the duration of the command all supply lines except for a main feed line are switched off and the pulses only given in this main feed line will. This means a considerable simplification in terms of controlling the Impulsing and will in most cases also taking into account the shift in the event of a voltage drop etc. caused by one of the like switching occurs, permissible be. Converters have already become known in which a similar choke coil is switched on in the circuit in order to simplify the interruption or commutation process by generating a low-current pause near the current zero crossings.

Uni in -Neuen, in denen solche Umformer arbeiten, durch den Impulsgeber nach der Erfindung gleichfalls keine Störungen hervorzurufen, kann als weitere Verbesserung durch Vormagnetisierung der Drossel, die zum Zwecke der Impulsgebung eingeschaltet wird, eine Verschiebung der Phasenlage der durch die Drossel hervorgerufenen Stufe erfolgen, so daß sie- zeitlich mit dem verlängerten Stromnulldurchgang am Umformer nicht zusammenfällt und daher diesen nicht stört. Eine ähnliche Verschiebung der Phasenlage kann auch dadurch erreicht werden, daß die für die Impulsgebung bestimmte Drossel nicht nur von einem, sondern von mehreren, beispielsweise zwei Phasenströmen erregt wird.Uni in -new in which such converters work, through the pulse generator According to the invention, likewise, causing no disturbances can be a further improvement by biasing the choke, which is switched on for the purpose of generating pulses is a shift in the phase position of the stage caused by the throttle take place so that they are timed with the extended current zero crossing at the converter does not coincide and therefore does not disturb it. A similar shift in the The phase position can also be achieved in that the determined for the pulse generation Choke not just from one, but from several, for example two phase currents is excited.

Die Anwendung des Erfindungsgegenstandes ist nicht auf die dargestellten Ausführungsbeispiele beschränkt. Insbesondere können beliebige Empfangsrelais, wie diese den jeweils zu erwartenden und angefachten Schwingungen am besten angepaßt sind, verwendet «-erden.The application of the subject matter of the invention is not to those shown Embodiments limited. In particular, any receiving relay, such as these are best adapted to the expected and fanned vibrations are, used «-erden.

Claims (7)

PATENTANSPRÜCHE. i. Vorrichtung zur Erzeugung von Steuerimpulsen in Wechselstromnetzen durch kurzzeitige Einschaltung einer Drossel, die bereits bei verhältnismäßig geringem Stromwert in ihrem Eisenkern gesättigt wird, nach Patent 742 $4$, dadurch gekennzeichnet, daß außer der Drossel zwischen den einzelnen (wenigstens zwei) Phasenleitern noch eine zusätzliche Kapazität eingeschaltet ist. PATENT CLAIMS. i. Device for generating control pulses in AC networks by briefly switching on a choke, which is already at relatively low current value is saturated in its iron core, according to patent 742 $ 4 $, characterized in that in addition to the throttle between the individual (at least two) phase conductors an additional capacity is switched on. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Kapazität derart bemessen ist, daß sich eine Eigenschwingung ergibt, die mit der Netzfrequenz bzw. deren Oberwellen keine Resonanz ergibt. 2. Device according to claim i, characterized in that the capacitance is dimensioned in such a way that that there is a natural oscillation that corresponds to the mains frequency or its harmonics there is no response. 3. Vorrichtung nach den Ansprüchen i und 2, dadurch gekennzeichnet, daß für den Empfang der Impulse ein Relais dient, das auf hohe Werte der Spannungssteilheit anspricht. d.. 3. Device according to claims i and 2, characterized in that that a relay is used to receive the impulses, which is set to high values of the voltage steepness appeals to. d .. Vorrichtung nach den Ansprüchen i bis 3, dadurch gekennzeichnet, daß dem Empfangsrelais eine Induktivität und Kapazität in Hintereinanderschaltung vorgeschaltet sind, die so dimensioniert sind, daß bei der ImpuIsgabe der größte Teil des Spannungsabfalles an der Induktivität liegt. Device according to claims i to 3, characterized in that that the receiving relay has an inductance and capacitance in series are connected upstream, which are dimensioned so that when the impulse is the largest Part of the voltage drop across the inductance is. 5. Vorrichtung nach den Ansprüchen i bis q. für Netze, die an mehreren Seiten gespeist werden, dadurch gekennzeichnet, idäß bei der Impulsgabe alle Zuleitungen bis auf eine abgeschaltet werden, in der die Impulse gegeben werden. 5. Device according to claims i to q. for networks that are fed from several sides, characterized in that all feed lines except for one are switched off when the pulse is emitted in which the impulses are given. 6. Vorrichtung nach den Ansprüchen i bis 5 für Netze, in denen Umformer mit zusätzlich elektrisch beeinflußter Kommutierung, z. B. mit :durch ,eine hochgesättigte Drossel verursachter stromschwacher Pause in der Nähe der Stromnulldurchgänge, arbeiten, .dadurch :gekennzeichnet, daß die für die Impulsgabe bestimmte Drossel derart erregt ist, daß die Impulse gegenüber den Kommutierungszeiten der Umformer eine Phasenverschiebung aufweisen. 6. Device according to claims i up to 5 for networks in which converters with additionally electrically influenced commutation, z. B. with: low-current pause caused by a highly saturated choke in the vicinity of the current zero crossings,. characterized by: that the for the pulse delivery certain throttle is excited in such a way that the pulses opposite the commutation times of the converters show a phase shift. 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, @daß die impulsgebende Drossel, insbesondere mit Gleichstrom, vormagnetisiert ist. B. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, .daß die impulsgebende Drossel von mehreren Phasenströmen erregt ist.7. Device according to claim 6, characterized in that the pulse-generating choke, in particular with direct current, is premagnetized. B. Device according to claim 7, characterized in that .that the pulsing choke is excited by several phase currents.
DES135387D 1939-01-14 1939-01-14 Device for generating control pulses in alternating current networks Expired DE763437C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES135387D DE763437C (en) 1939-01-14 1939-01-14 Device for generating control pulses in alternating current networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES135387D DE763437C (en) 1939-01-14 1939-01-14 Device for generating control pulses in alternating current networks

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DE763437C true DE763437C (en) 1952-10-27

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DES135387D Expired DE763437C (en) 1939-01-14 1939-01-14 Device for generating control pulses in alternating current networks

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246859B (en) * 1965-01-02 1967-08-10 Raeder & Co Control and reporting device, especially for underground mining
EP0018334A1 (en) * 1979-04-12 1980-10-29 Handelsbolaget Light Regulation Apparatus for transmitting information on an alternating current line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246859B (en) * 1965-01-02 1967-08-10 Raeder & Co Control and reporting device, especially for underground mining
EP0018334A1 (en) * 1979-04-12 1980-10-29 Handelsbolaget Light Regulation Apparatus for transmitting information on an alternating current line

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