WO2001008321A1 - Circuit adaptateur pour impedances caracteristiques - Google Patents

Circuit adaptateur pour impedances caracteristiques Download PDF

Info

Publication number
WO2001008321A1
WO2001008321A1 PCT/DE2000/002378 DE0002378W WO0108321A1 WO 2001008321 A1 WO2001008321 A1 WO 2001008321A1 DE 0002378 W DE0002378 W DE 0002378W WO 0108321 A1 WO0108321 A1 WO 0108321A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit according
transformer
signal converters
power lines
circuit
Prior art date
Application number
PCT/DE2000/002378
Other languages
German (de)
English (en)
Inventor
Werner Elischer
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP00952944A priority Critical patent/EP1197012A1/fr
Publication of WO2001008321A1 publication Critical patent/WO2001008321A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5491—Systems for power line communications using filtering and bypassing

Definitions

  • the invention relates to a matching circuit for wave resistors for use in data transmission on power lines.
  • PLC Power Line Communication
  • signals in the audio frequency range and in the carrier frequency range up to approx. 200 kHz have been used for PLC.
  • the coupling circuits for connecting the transmitters and the receivers to the network are relatively uncritical with regard to adapting the wave resistances, since the reflections at the transition points are not yet of any significant significance at these signal frequencies.
  • the connection lines for the transmitter and receiver are much shorter than the wavelengths of the signal.
  • Coupling circuits for a parallel capacitive coupling are known. A transformer signal transmission takes place here, which primarily serves to isolate the potential of the transmitter and receiver. Such transformer coupling circuits are described for example in US 4,437,817 A.
  • US Pat. No. 4,686,382 A discloses a bypass circuit for PLC transmission, especially in the kHz range, in which a switch is bridged by two transformers into which a transmitter / receiver is switched on.
  • a circuit with a group of three identical low-voltage windings and a group of three identical high-voltage windings is provided in DE 29 33 473 AI, with a magnetic coupling of each winding of a group with a corresponding winding of the other group. This in the signal to be coupled in is applied to the unconnected ends of the two windings of the first group of windings.
  • Transformers arise when bridging switches. In both cases, the respective signal is attenuated by the transformers or interrupted by the switches when signals are transmitted on power lines. To ensure signal transmission at such points, these elements must be bridged.
  • the object of the invention is to provide suitable matching circuits especially for the MHz range.
  • transformer signal converters are cascaded for use in the MHz range.
  • the signal converters are coupled to the power lines, the data being transmitted via the signal converters.
  • the cascade circuit preferably in connection with the coaxial line, can be used to implement a bypass circuit which can be designed, for example, alternatively for transformers or also for switches.
  • a suitable solution can thus be created for the transition from or to overhead lines.
  • Figure 1 shows a circuit arrangement with two signal transmitters in cascade as a coaxial bypass for use in transformers
  • Figure 2 shows a modification of Figure 1 for use with shielded plastic cables
  • Figure 3 shows a circuit with two signal transmitters in cascade as a coaxial bypass for use with switches.
  • FIGS. 1 and 2 the coupling point between the line sections 1 and 2 contains a transformation from medium voltage to low voltage, a transformer 3 having medium-voltage transformer coils 31 to 33 and low-voltage transformer coils 31 ⁇ to 33 'being present.
  • FIG. 3 contains a switch 5 with individual switches 51 to 53 for the power lines.
  • FIGS. 1 to 3 two transformer signal transmitters 10 and 20 are present in cascade in order to reduce the inevitable signal reflections to a minimum.
  • the signal transmitters 10 and 20 each consist of the partial transmitters 11, 12 and 21, 22 and have associated coupling capacitors Cl and C2.
  • the associated protective circuit is not shown in detail.
  • the signal transmitters 10 and 20 are attached very close to the respective power lines.
  • the signal transmitters 10 and 20 are connected by a coaxial cable 30.
  • the two transmitters 10 and 20 with the respective transformer transmission between the units 11 and 12 or 21 and 22 serve to isolate the potential and to adapt the characteristic impedances of the high-voltage networks to the coaxial cable 30.
  • the signal transmitters 10 and 20 themselves are also largely constructed coaxial.
  • FIG. 1 The arrangement specifically in FIG. 1 with the transformer bypass for the MHz range and parallel capacitive coupling on both sides is particularly suitable for the connection of overhead lines or lead sheathed cables on the medium-voltage side and any lines on the low-voltage side.
  • Figure 2 the arrangement of Figure 1 has been modified so that a plastic cable is used on the medium voltage side, in which a shield 4 is present.
  • the shield 4 is connected to ground potential via the partial transformer 11 of the first transformer 10. Otherwise, the serial inductive coupling is constructed in accordance with FIG. 1.
  • a switch 5 consisting of individual switches 51, 52 and 53 for the phases L1 to L3 is present between the lines 1 and 2 instead of the transformer 3. Otherwise corresponds to
  • Circuit structure to that of FIG. 1.
  • a mains switch can be bridged using the coaxial bypass for the MHz range.

Abstract

Des circuits adaptateurs sont nécessaires lorsque des données doivent être transmises dans le domaine de la communication sur des lignes de transport d'énergie. Selon l'invention, des convertisseurs de signaux (10; 20) à transformateurs sont montés en cascade, lorsqu'un circuit adaptateur pour impédances caractéristiques est utilisé dans la plage des MHz. De préférence, on utilise une ligne coaxiale (30) pour relier les convertisseurs de signaux (10; 20) à transformateurs. Il est ainsi possible de réaliser une dérivation pour transformateurs ou pour commutateurs.
PCT/DE2000/002378 1999-07-22 2000-07-20 Circuit adaptateur pour impedances caracteristiques WO2001008321A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00952944A EP1197012A1 (fr) 1999-07-22 2000-07-20 Circuit adaptateur pour impedances caracteristiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999134335 DE19934335C1 (de) 1999-07-22 1999-07-22 Anpaßschaltung für Wellenwiderstände
DE19934335.7 1999-07-22

Publications (1)

Publication Number Publication Date
WO2001008321A1 true WO2001008321A1 (fr) 2001-02-01

Family

ID=7915632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002378 WO2001008321A1 (fr) 1999-07-22 2000-07-20 Circuit adaptateur pour impedances caracteristiques

Country Status (3)

Country Link
EP (1) EP1197012A1 (fr)
DE (1) DE19934335C1 (fr)
WO (1) WO2001008321A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6496104B2 (en) 2000-03-15 2002-12-17 Current Technologies, L.L.C. System and method for communication via power lines using ultra-short pulses
EP1454423A1 (fr) * 2001-12-11 2004-09-08 Ascom Powerline Communications AG Transmission de donnees haute frequence
EP1579668A2 (fr) * 2002-12-10 2005-09-28 Current Technologies LLC Systeme de communication sur lignes de transport de force et son procede de fonctionnement
EP1579669A2 (fr) * 2002-12-10 2005-09-28 Current Technologies LLC Appareil de communication de ligne electrique et procede d'utilisation
EP1603249A1 (fr) * 2004-03-15 2005-12-07 Mitsubishi Denki Kabushiki Kaisha Unite de derivation haute frequence
US7382232B2 (en) 2004-10-26 2008-06-03 Current Technologies, Llc Power line communications device and method of use
US7449991B2 (en) 2002-12-10 2008-11-11 Current Technologies, Llc Power line communications device and method
US7675408B2 (en) 2001-02-14 2010-03-09 Current Technologies, Llc Power line communication system, device and method
US7761079B2 (en) 2006-06-09 2010-07-20 Current Technologies, Llc Power line communication device and method
WO2010145971A1 (fr) * 2009-06-15 2010-12-23 Christoph Ruland Dispositif de raccordement à un réseau d'alimentation électrique et système de transport

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133509C2 (de) * 2001-07-10 2003-05-22 Siemens Ag Übertragung von Daten über das Stromversorgungsnetz
DE10232303A1 (de) * 2002-07-16 2004-02-05 Power Plus Communications Ag Anordnung zur leitungsgebundenen Übertragung von Daten über ein Stromnetzwerk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473816A (en) * 1982-04-13 1984-09-25 Rockwell International Corporation Communications signal bypass around power line transformer
US4686382A (en) * 1985-08-14 1987-08-11 Westinghouse Electric Corp. Switch bypass circuit for power line communication systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188619A (en) * 1978-08-17 1980-02-12 Rockwell International Corporation Transformer arrangement for coupling a communication signal to a three-phase power line

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473816A (en) * 1982-04-13 1984-09-25 Rockwell International Corporation Communications signal bypass around power line transformer
US4686382A (en) * 1985-08-14 1987-08-11 Westinghouse Electric Corp. Switch bypass circuit for power line communication systems

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6496104B2 (en) 2000-03-15 2002-12-17 Current Technologies, L.L.C. System and method for communication via power lines using ultra-short pulses
US7675408B2 (en) 2001-02-14 2010-03-09 Current Technologies, Llc Power line communication system, device and method
EP1454423A1 (fr) * 2001-12-11 2004-09-08 Ascom Powerline Communications AG Transmission de donnees haute frequence
EP1579669A4 (fr) * 2002-12-10 2007-08-29 Current Tech Llc Appareil de communication de ligne electrique et procede d'utilisation
EP1579669A2 (fr) * 2002-12-10 2005-09-28 Current Technologies LLC Appareil de communication de ligne electrique et procede d'utilisation
EP1579668A4 (fr) * 2002-12-10 2007-09-05 Current Tech Llc Systeme de communication sur lignes de transport de force et son procede de fonctionnement
US7449991B2 (en) 2002-12-10 2008-11-11 Current Technologies, Llc Power line communications device and method
EP1579668A2 (fr) * 2002-12-10 2005-09-28 Current Technologies LLC Systeme de communication sur lignes de transport de force et son procede de fonctionnement
US7701325B2 (en) 2002-12-10 2010-04-20 Current Technologies, Llc Power line communication apparatus and method of using the same
EP1603249A1 (fr) * 2004-03-15 2005-12-07 Mitsubishi Denki Kabushiki Kaisha Unite de derivation haute frequence
EP1603249A4 (fr) * 2004-03-15 2006-10-04 Mitsubishi Electric Corp Unite de derivation haute frequence
US7382232B2 (en) 2004-10-26 2008-06-03 Current Technologies, Llc Power line communications device and method of use
US7761079B2 (en) 2006-06-09 2010-07-20 Current Technologies, Llc Power line communication device and method
WO2010145971A1 (fr) * 2009-06-15 2010-12-23 Christoph Ruland Dispositif de raccordement à un réseau d'alimentation électrique et système de transport
CN102458909A (zh) * 2009-06-15 2012-05-16 克里斯托夫·鲁兰 连接到电网上的装置以及运输系统

Also Published As

Publication number Publication date
DE19934335C1 (de) 2001-04-12
EP1197012A1 (fr) 2002-04-17

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