WO2003019989A1 - A lighting circuit that uses the supply current in order to exchange lighting lamp control messages - Google Patents

A lighting circuit that uses the supply current in order to exchange lighting lamp control messages Download PDF

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Publication number
WO2003019989A1
WO2003019989A1 PCT/FR2002/002919 FR0202919W WO03019989A1 WO 2003019989 A1 WO2003019989 A1 WO 2003019989A1 FR 0202919 W FR0202919 W FR 0202919W WO 03019989 A1 WO03019989 A1 WO 03019989A1
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WO
WIPO (PCT)
Prior art keywords
distribution line
voltage distribution
transformer
winding
high voltage
Prior art date
Application number
PCT/FR2002/002919
Other languages
French (fr)
Inventor
Raymond Grinneiser
Original Assignee
Augier S.A.
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.)
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Publication date
Application filed by Augier S.A. filed Critical Augier S.A.
Priority to EP02774880A priority Critical patent/EP1425941A1/en
Publication of WO2003019989A1 publication Critical patent/WO2003019989A1/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • Lighting network using the supply current for the exchange of control messages for lighting lamps
  • the present invention relates to lighting networks in which each lamp is controlled by a lamp control module and relates more particularly to an improved lighting network in which the supply current of the lighting lamps is used as current carrier for the exchange of control messages between a central station and each control module.
  • Low voltage lighting networks that is to say networks in which the supply current for lighting lamps is the 230 V mains current, are currently increasingly using the supply current as carrier current for the remote control. and lamp control.
  • the carrier current remote control systems can be systems for home networks where the communication of lamp control messages is limited to a private network located downstream of the local meter. It is the field of home automation where the network loads are essentially resistive or only slightly inductive as in the case of heating, lighting or small motors. In the case of remote control systems for public networks, the communication of lamp control messages must take place over long distances, as is the case with public lighting in cities where the load is complex and consists essentially of discharge lamps and their supply device (plates). It is also the field of road and motorway lighting if it can be distributed at low voltage. Low voltage public lighting networks of this type, where each lighting lamp is connected to a low voltage distribution line by means of a control module, find their limit when the network is too large.
  • the voltage drops generated in the distribution line then become too great.
  • the section of the cable used necessary to obtain an acceptable voltage drop quickly becomes prohibitive as soon as the length of the distribution line exceeds a few km.
  • a higher voltage is used, that is to say greater than 1000 V, for example 3200 V per phase of a three-phase source or 5500 V between phases.
  • This supply can be obtained either by raising the low voltage to a level known as HT T (high intermediate voltage), or by lowering the voltage obtained from a HT A delivery station (for example 20 kv). The transport is then done over long distances by a cable of reduced section.
  • the voltage is then re-transformed locally to supply a LV sub-network of a few hundred meters where the lighting lamps or candelabras are installed.
  • This mode of transport allows economical lighting of entire sections of motorway, parking areas or any network infrastructure between 1 and 100 km.
  • HTT networks cannot function properly with regard to the transmission of control messages transmitted to the control modules associated with each lamp.
  • the transformers used to connect each LV sub-network to the HV T distribution line have an impedance much too high for the frequency of the signals composing the control messages according to the legislation in force which is included in the band from 3 to 148 kHz (standard EN 50065-1).
  • the frequency chosen is most of the time close to the upper limit, for example 130 KHz, so as to use a large bandwidth in the transmission of these messages.
  • the HV T network consisting of a screened and armored cable associated with the transformer loads has a characteristic impedance very different from that of a LV network. The transmission components included in the lamp control modules designed for low voltage are then completely unsuitable for HTT.
  • the object of the invention is to design a public lighting network using the HT T supply to supply LV subnets, in which the lamp control messages can be transmitted with minimal attenuation to each. LV subnets.
  • Another object of the invention is to design a lighting network of this type in which there is impedance matching between the HT T distribution line and the lamp control modules in each of the LV networks.
  • the object of the invention is therefore a lighting network comprising a high voltage and low frequency power supply connected to a high voltage distribution line, a plurality of low voltage networks each connected to the high distribution line.
  • voltage by means of a low frequency transformer each of the low voltage networks consisting of a low voltage distribution line to which lighting lamps are connected by means of lamp control modules, and emission means / reception to send messages to the lamp control modules and receive messages from them via the high and low voltage distribution lines using the low frequency supply current flowing in the lines as carrier current.
  • a coupling module is connected between the input / output terminals of each of the low frequency transformers, this coupling module comprising voltage transformation means suitable for transmitting the messages with minimum attenuation and blocking means for blocking the current low frequency power supply on both sides of the coupling module.
  • FIG. 1 is a block diagram representing a lighting network according to the invention
  • FIG. 2 shows schematically the coupling module according to the invention in the case of a power supply
  • FIG. 3 schematically shows a first embodiment of the coupling module according to the invention in the case of a three-phase HV T supply
  • FIG. 4 schematically shows a second embodiment of the coupling module according to the invention in the case of a three-phase HT T supply
  • FIG. 5 schematically represents a first alternative embodiment of the coupling module according to the invention
  • - Figure 6 schematically shows the variant illustrated in Figure 5 further comprising bi-directional amplification means.
  • a lighting network comprises a supply voltage source V which can be a low voltage LV (230 V) or a high voltage HT A (20 KV).
  • a transformer 10 makes it possible to obtain a voltage HT T of at least 1000 V, for example 3200 or 5000 V.
  • This voltage is supplied to a high voltage distribution line 12 via one or more several sectioning and measuring members 14.
  • To the high voltage distribution line 12 which can extend over long distances are connected low voltage networks 16, 18 or 20 by means of low frequency transformers, respectively transformers 22 , 24, and 26.
  • a coupling module is connected between the input and output terminals of each of the low frequency transformers.
  • the coupling module 28 is connected between the terminals of the transformer 22
  • the coupling module 30 is connected between the terminals of the transformer 24
  • the coupling module 32 is connected between the terminals of the transformer 26.
  • the control and the remote control of LV networks are provided by a central station 34 through a control unit 36 connected to the high voltage distribution line 12 by a low frequency transformer 38 also comprising a coupling module between its input and output terminals.
  • Each of the LV networks such as the network 16 includes a low voltage distribution line 42 to which are connected lighting lamps such as lamps 44, 46, and 48, respectively through lamp control modules 50, 52, and 54 intended to receive messages from central station 34 and to transmit messages to said central station.
  • These messages are transmitted at frequencies between 3 and 148 KHz according to the standards in force, but it is preferable to use a high frequency, for example 130 KHz so as to transmit these messages at the highest possible speed.
  • the coupling modules 28, 30, 32 or 40 can be different while having common characteristics depending on whether the input supply of the coupling module is single-phase or three-phase, and in the latter case, depending on whether it is taken between the three phases and the earth or that it is caught between two of the phases and the third phase.
  • the coupling module 60 comprises a transformer 62 whose primary winding is connected between line 12 and the earth and the winding secondary is connected to the LV network.
  • This transformer is suitable for transforming the HT T voltage (for example 3200 V) into LV voltage (230 V) but includes a magnetic core in the form of a torus, rods or ferrite pots (unlike the core of the low frequency transformer into magnetic sheet) so as to present a minimum attenuation at the frequency of transmission of the control messages, for example 130 KHz.
  • the coupling module comprises necessarily a capacitor 64 connecting the primary winding of the transformer 62 to the high voltage distribution line 12 and a capacitor 66 connecting the output of the secondary winding to the LV network.
  • capacitors 64 and 66 are to block the low frequency (50 Hz)
  • their value is preferably chosen so as to constitute at least approximately a resonant circuit in series with the inductance resulting from the winding of the transformer 62 to which it is connected in combination with the inductance of the distribution line, respectively the HV distribution line for capacity 64 and the LV distribution line for capacity 66.
  • the value of capacity 64 can be between 1 and 10 nF, preferably 5 nF
  • the value of the capacitance 66 can be between 100 nF and 1 ⁇ F, preferably 0.5 ⁇ F.
  • the coupling module can be presented in two different ways.
  • one side of the primary winding of the transformer 62 of the coupling module 69 is connected in parallel to the three phases of the line 12 by the respective capacitors 70, 72, 74 which have the same value substantially equal to the value of capacity 64 ( Figure 2), and the other side is connected to earth as before.
  • the secondary winding is connected to the LV network by a capacitor 66 as in the case of FIG. 2.
  • one side of the primary winding of the transformer 62 of the coupling module 79 is connected in parallel to two phases of the high voltage distribution line by the respective capacitors 80 and 82 which have the same value substantially equal to the value of capacity 64, and the other side of the transformer is connected directly to the third phase of the line.
  • the secondary winding is connected to the LV network by a capacity 66 as in the two previous cases. Note that this arrangement has the advantage of being independent of the earth circuit.
  • the coupling module 85 can also comprise additive components. It is thus possible to add an inductance on each side to obtain a better adaptation of the impedances.
  • the inductance 86 in series with the capacitor 64 aims to adapt the input impedance of the coupling module seen from the high voltage side to the characteristic impedance of the high voltage distribution line.
  • the inductance 88 aims to adapt the impedance of the coupling module seen from the low voltage side to the characteristic impedance of the low voltage distribution line.
  • the capacity 90 constitutes a parallel resonant circuit with the winding on the HV side while the capacity 92 constitutes a parallel resonant circuit with the winding on the LV side.
  • the module can be made active. coupling 91 by adding amplifiers to the variant embodiment described above, knowing that said amplifiers could be also integrated into the embodiment illustrated in FIG. 2.
  • the coupling module comprises bidirectional amplification means consisting of the amplifier 94 in the direction BT -> HT and of the amplifier 96 in the HT -> LV direction, one or other of the two amplifiers being selected by a switch 98.
  • the two amplifiers are supplied by the power source 100.
  • a parallel resonant circuit consisting of the capacitor 102 and the inductor 104 so as to provide a parallel resonant circuit for the frequency of transmission of the control information (130 KHz).

Abstract

The invention relates to a lighting circuit comprising a high-voltage distribution line (12), to which a plurality of low-voltage networks (16, 18, 20) are connected by means of low-frequency transformers (20, 22, 24). Each of said networks consists of a low-voltage distribution line (42), to which lighting lamps (44, 46, 48) are connected by means of lamp control modules (50, 52, 54). Transmission/reception means (34, 36) are used to exchange messages with the lamp control modules using the low-frequency supply current that is flowing through the lines as carrier current. A coupling unit (28, 30 or 32) is connected between the input/output terminals of each of the low-frequency transformers. Said coupling unit comprises voltage transformation means, which can transmit the control messages with minimum attenuation, and means for blocking the low-frequency supply current on either side of the coupling unit.

Description

Réseau d'éclairage utilisant le courant d'alimentation pour l'échange des messages de contrôle des lampes d'éclairage Lighting network using the supply current for the exchange of control messages for lighting lamps
Domaine techniqueTechnical area
La présente invention concerne les réseaux d'éclairage dans lesquels chaque lampe est contrôlée par un module de contrôle de lampe et a trait plus particulièrement à un réseau d'éclairage amélioré dans lequel le courant d'alimentation des lampes d'éclairage est utilisé comme courant porteur pour l'échange des messages de contrôle entre un poste central et chaque module de contrôle.The present invention relates to lighting networks in which each lamp is controlled by a lamp control module and relates more particularly to an improved lighting network in which the supply current of the lighting lamps is used as current carrier for the exchange of control messages between a central station and each control module.
Etat de la techniqueState of the art
Les réseaux d'éclairage basse tension, c'est à dire les réseaux dont le courant d'alimentation des lampes d'éclairage est le courant secteur de 230 V utilisent actuellement de plus en plus le courant d'alimentation comme courant porteur pour la télécommande et le contrôle des lampes .Low voltage lighting networks, that is to say networks in which the supply current for lighting lamps is the 230 V mains current, are currently increasingly using the supply current as carrier current for the remote control. and lamp control.
Les systèmes de télécommande par courant porteur peuvent être des systèmes pour réseaux domestiques où la communication des messages de contrôle des lampes est circonscrite à un réseau privé situé en aval du compteur local. C'est le domaine de la domotique où les charges de réseau sont essentiellement résistives ou seulement légèrement inductives comme dans le cas du chauffage, de l'éclairage ou des petits moteurs. Lorsqu'il s'agit des systèmes de télécommande pour réseaux publics, la communication des messages de contrôle des lampes doit s'effectuer sur de longues distances, comme c'est le cas de l'éclairage public des villes où la charge est complexe et est essentiellement constituée de lampes à décharge et de leur dispositif d'alimentation (platines). C'est également le domaine de l'éclairage routier et autoroutier dans le cas où celui-ci peut être distribué en basse tension. Les réseaux d'éclairage public basse tension de ce type, où chaque lampe d'éclairage est connectée à une ligne de distribution basse tension par l'intermédiaire d'un module de contrôle, trouvent leur limite lorsque le réseau est trop étendu. Les chutes de tension engendrées dans la ligne de distribution deviennent alors trop importantes. La section du câble utilisé nécessaire à l'obtention d'une chute de tension acceptable devient vite prohibitive dès que la longueur de la ligne de distribution dépasse quelques km. Pour pallier le problème ci-dessus, il faut donc réduire les chutes de tension et les sections des câbles utilisés. Pour ce faire on utilise une tension plus élevée, c'est à dire supérieure à 1000 V, par exemple de 3200 V par phase d'une source triphasée ou 5500 V entre phases. Cette alimentation peut être obtenue soit en élevant la basse tension à un niveau dit HTT (haute tension intermédiaire) , soit en abaissant la tension obtenue à partir d'un poste de livraison HTA (par exemple de 20 kv) . Le transport se fait alors sur de longues distances par un câble de section réduite. La tension est ensuite re-transformée localement pour alimenter un sous-réseau BT de quelques centaines de mètres où sont installées les lampes d'éclairage ou candélabres. Ce mode de transport permet l'éclairage économique de sections entières d'autoroute, aires de parking ou toute infrastructure de réseau comprise entre 1 et 100 km.The carrier current remote control systems can be systems for home networks where the communication of lamp control messages is limited to a private network located downstream of the local meter. It is the field of home automation where the network loads are essentially resistive or only slightly inductive as in the case of heating, lighting or small motors. In the case of remote control systems for public networks, the communication of lamp control messages must take place over long distances, as is the case with public lighting in cities where the load is complex and consists essentially of discharge lamps and their supply device (plates). It is also the field of road and motorway lighting if it can be distributed at low voltage. Low voltage public lighting networks of this type, where each lighting lamp is connected to a low voltage distribution line by means of a control module, find their limit when the network is too large. The voltage drops generated in the distribution line then become too great. The section of the cable used necessary to obtain an acceptable voltage drop quickly becomes prohibitive as soon as the length of the distribution line exceeds a few km. To overcome the above problem, it is therefore necessary to reduce the voltage drops and the sections of the cables used. To do this, a higher voltage is used, that is to say greater than 1000 V, for example 3200 V per phase of a three-phase source or 5500 V between phases. This supply can be obtained either by raising the low voltage to a level known as HT T (high intermediate voltage), or by lowering the voltage obtained from a HT A delivery station (for example 20 kv). The transport is then done over long distances by a cable of reduced section. The voltage is then re-transformed locally to supply a LV sub-network of a few hundred meters where the lighting lamps or candelabras are installed. This mode of transport allows economical lighting of entire sections of motorway, parking areas or any network infrastructure between 1 and 100 km.
Malheureusement, ces réseaux HTT ne peuvent pas fonctionner convenablement en ce qui concerne la transmission des messages de contrôle transmis aux modules de contrôle associés à chaque lampe. En effet, les transformateurs utilisés pour connecter chaque sous-réseau BT à la ligne de distribution HTT présentent une impédance bien trop élevée pour la fréquence des signaux composant les messages de contrôle selon la législation en vigueur qui est comprise dans la bande de 3 à 148 kHz (norme EN 50065-1) . La fréquence choisie est la plupart du temps proche de la limite supérieure par exemple 130 KHz, de façon à utiliser une grande bande passante dans la transmission de ces messages. En outre, le réseau HTT constitué par un câble écranté et armé associé aux charges des transformateurs possède une impédance caractéristique très différente de celle d'un réseau BT. Les organes de transmission inclus dans les modules de contrôle des lampes conçus pour la basse tension sont alors totalement désadaptés en HTT.Unfortunately, these HTT networks cannot function properly with regard to the transmission of control messages transmitted to the control modules associated with each lamp. Indeed, the transformers used to connect each LV sub-network to the HV T distribution line have an impedance much too high for the frequency of the signals composing the control messages according to the legislation in force which is included in the band from 3 to 148 kHz (standard EN 50065-1). The frequency chosen is most of the time close to the upper limit, for example 130 KHz, so as to use a large bandwidth in the transmission of these messages. In addition, the HV T network consisting of a screened and armored cable associated with the transformer loads has a characteristic impedance very different from that of a LV network. The transmission components included in the lamp control modules designed for low voltage are then completely unsuitable for HTT.
Exposé de l'inventionStatement of the invention
C'est pourquoi le but de l'invention est de concevoir un réseau d'éclairage public utilisant l'alimentation HTT pour alimenter des sous-réseaux BT, dans lequel les messages de contrôle des lampes peuvent être transmis avec une atténuation minimale vers chacun des sous-réseaux BT.This is why the object of the invention is to design a public lighting network using the HT T supply to supply LV subnets, in which the lamp control messages can be transmitted with minimal attenuation to each. LV subnets.
Un autre but de l'invention est de concevoir un réseau d'éclairage de ce type dans lequel il y a adaptation d'impédance entre la ligne de distribution HTT et les modules de contrôle de lampe dans chacun des réseaux BT.Another object of the invention is to design a lighting network of this type in which there is impedance matching between the HT T distribution line and the lamp control modules in each of the LV networks.
L'objet de l'invention est donc un réseau d'éclairage comprenant une source d'alimentation de courant haute tension et basse fréquence connectée à une ligne de distribution haute tension, une pluralité de réseaux basse tension connectés chacun à la ligne de distribution haute tension au moyen d'un transformateur basse fréquence chacun des réseaux basse tension étant constitué d'une ligne de distribution basse tension à laquelle sont connectées des lampes d'éclairage par l'intermédiaire de modules de contrôle de lampe, et des moyens d'émission/réception pour émettre des messages vers les modules de contrôle de lampe et recevoir des messages en provenance de ces derniers par l'intermédiaire des lignes de distribution haute et basse tension en utilisant le courant d'alimentation basse fréquence circulant dans les lignes comme courant porteur. Un module de couplage est connecté entre les bornes d'entrée/sortie de chacun des transformateurs basse fréquence, ce module de couplage comprenant des moyens de transformation de tension adaptés pour transmettre les messages avec une atténuation minimale et des moyens de blocage pour bloquer le courant d'alimentation basse fréquence de part et d'autre du module de couplage.The object of the invention is therefore a lighting network comprising a high voltage and low frequency power supply connected to a high voltage distribution line, a plurality of low voltage networks each connected to the high distribution line. voltage by means of a low frequency transformer each of the low voltage networks consisting of a low voltage distribution line to which lighting lamps are connected by means of lamp control modules, and emission means / reception to send messages to the lamp control modules and receive messages from them via the high and low voltage distribution lines using the low frequency supply current flowing in the lines as carrier current. A coupling module is connected between the input / output terminals of each of the low frequency transformers, this coupling module comprising voltage transformation means suitable for transmitting the messages with minimum attenuation and blocking means for blocking the current low frequency power supply on both sides of the coupling module.
Description brève des figuresBrief description of the figures
Les buts, objets et caractéristiques de l'invention apparaîtront plus clairement à la lecture de la description qui suit faite en référence aux dessins dans lesquels :The objects, objects and characteristics of the invention will appear more clearly on reading the following description made with reference to the drawings in which:
- la figure 1 est un bloc diagramme représentant un réseau d'éclairage selon l'invention,FIG. 1 is a block diagram representing a lighting network according to the invention,
- la figure 2 représente schématiquement le module de couplage selon l'invention dans le cas d'une alimentation- Figure 2 shows schematically the coupling module according to the invention in the case of a power supply
HTi monophasée,HTi single phase,
- la figure 3 représente schématiquement un premier mode de réalisation du module de couplage selon l'invention dans le cas d'une alimentation HTT triphasée, - la figure 4 représente schématiquement un deuxième mode de réalisation du module de couplage selon l'invention dans le cas d'une alimentation HTT triphasée,- Figure 3 schematically shows a first embodiment of the coupling module according to the invention in the case of a three-phase HV T supply, - Figure 4 schematically shows a second embodiment of the coupling module according to the invention in the case of a three-phase HT T supply,
- la figure 5 représente schématiquement une première variante de réalisation du module de couplage selon l'invention, et - la figure 6 représente schématiquement la variante illustrée sur la figure 5 comportant en outre des moyens d' amplification bi-directionnels .FIG. 5 schematically represents a first alternative embodiment of the coupling module according to the invention, and - Figure 6 schematically shows the variant illustrated in Figure 5 further comprising bi-directional amplification means.
Description détaillée de l'inventionDetailed description of the invention
En référence à la figure 1, un réseau d'éclairage conforme à l'invention comprend une source de tension de livraison V qui peut être une basse tension BT (230 V) ou une haute tension HTA (20 KV) . Dans les deux cas, un transformateur 10 permet d'obtenir une tension HTT d'au moins 1000 V, par exemple 3200 ou 5000 V. Cette tension est délivrée à une ligne de distribution haute tension 12 par l'intermédiaire d'un ou plusieurs organes de sectionnement et de mesure 14. A la ligne de distribution haute tension 12 qui peut s'étendre sur de longues distances sont connectés des réseaux basse tension 16, 18 ou 20 par l'intermédiaire de transformateurs basse fréquence, respectivement les transformateurs 22, 24, et 26. Conformément à l'invention, un module de couplage est connecté entre les bornes d'entrée et de sortie de chacun des transformateurs basse fréquence. Ainsi, le module de couplage 28 est connecté entre les bornes du transformateur 22, le module de couplage 30 est connecté entre les bornes du transformateur 24 et le module de couplage 32 est connecté entre les bornes du transformateur 26. A Noter que le contrôle et la télécommande des réseaux BT sont assurés par un poste central 34 à travers une unité de contrôle 36 connectée à la ligne de distribution haute tension 12 par un transformateur basse fréquence 38 comportant également un module de couplage entre ses bornes d'entrée et de sortie.Referring to Figure 1, a lighting network according to the invention comprises a supply voltage source V which can be a low voltage LV (230 V) or a high voltage HT A (20 KV). In both cases, a transformer 10 makes it possible to obtain a voltage HT T of at least 1000 V, for example 3200 or 5000 V. This voltage is supplied to a high voltage distribution line 12 via one or more several sectioning and measuring members 14. To the high voltage distribution line 12 which can extend over long distances are connected low voltage networks 16, 18 or 20 by means of low frequency transformers, respectively transformers 22 , 24, and 26. According to the invention, a coupling module is connected between the input and output terminals of each of the low frequency transformers. Thus, the coupling module 28 is connected between the terminals of the transformer 22, the coupling module 30 is connected between the terminals of the transformer 24 and the coupling module 32 is connected between the terminals of the transformer 26. A Note that the control and the remote control of LV networks are provided by a central station 34 through a control unit 36 connected to the high voltage distribution line 12 by a low frequency transformer 38 also comprising a coupling module between its input and output terminals.
Chacun des réseaux BT tel que le réseau 16, comprend une ligne de distribution basse tension 42 à laquelle sont connectées des lampes d'éclairage telles que les lampes 44, 46, et 48, par l'intermédiaire respectivement des modules de contrôle de lampe 50, 52, et 54 destinés à recevoir des messages du poste central 34 et à transmettre des messages vers ledit poste central. Ces messages sont transmis à des fréquences comprises entre 3 et 148, KHz selon les normes en vigueur, mais il est préférable d'utiliser une fréquence élevée, par exemple 130 KHz de façon à transmettre ces messages à une vitesse la plus élevée possible. Les modules de couplage 28, 30, 32 ou 40 peuvent être différents tout en comportant des caractéristiques communes selon que l'alimentation d'entrée du module de couplage est monophasée ou triphasée, et dans ce dernier cas, selon qu'elle est prise entre les trois phases et la terre ou qu' elle est prise entre deux des phases et la troisième phase .Each of the LV networks such as the network 16 includes a low voltage distribution line 42 to which are connected lighting lamps such as lamps 44, 46, and 48, respectively through lamp control modules 50, 52, and 54 intended to receive messages from central station 34 and to transmit messages to said central station. These messages are transmitted at frequencies between 3 and 148 KHz according to the standards in force, but it is preferable to use a high frequency, for example 130 KHz so as to transmit these messages at the highest possible speed. The coupling modules 28, 30, 32 or 40 can be different while having common characteristics depending on whether the input supply of the coupling module is single-phase or three-phase, and in the latter case, depending on whether it is taken between the three phases and the earth or that it is caught between two of the phases and the third phase.
Lorsque l'alimentation HTi fournie par la ligne de distribution haute tension 12 est monophasée comme illustré sur la figure 2, le module de couplage 60 comprend un transformateur 62 dont l'enroulement primaire est connecté entre la ligne 12 et la terre et l'enroulement secondaire est connecté au réseau BT. Ce transformateur est adapté pour transformer la tension HTT (par exemple 3200 V) en tension BT (230 V) mais comprend un noyau magnétique sous forme de tore, bâtonnets ou pots de ferrite (contrairement au noyau du transformateur basse fréquence en tôle magnétique) de façon à présenter une atténuation minimale à la fréquence de transmission des messages de contrôle, par exemple 130 KHz. Comme ce type de transformateur dont les enroulements contiennent peu de spires (2 ou 3 spires dans l'enroulement primaire et une dizaine dans l'enroulement secondaire) supporte difficilement qu'on lui applique une tension basse fréquence (50Hz), le module de couplage comprend nécessairement une capacité 64 connectant l'enroulement primaire du transformateur 62 à la ligne de distribution haute tension 12 et une capacité 66 connectant la sortie de l'enroulement secondaire au réseau BT . Le but des capacités 64 et 66 étant de bloquer la basse fréquence (50 Hz) , leur valeur est choisie de préférence de façon à constituer au moins approximativement un circuit résonant en série avec l'inductance résultant de l'enroulement du transformateur 62 auquel elle est connectée en combinaison avec l'inductance de la ligne de distribution, respectivement la ligne de distribution HT pour la capacité 64 et la ligne de distribution BT pour la capacité 66. Ainsi, la valeur de la capacité 64 peut être comprise entre 1 et 10 nF, de préférence 5 nF, et la valeur de la capacité 66 peut être comprise entre 100 nF et 1 μF, de préférence 0,5 μF.When the HTi supply supplied by the high-voltage distribution line 12 is single-phase as illustrated in FIG. 2, the coupling module 60 comprises a transformer 62 whose primary winding is connected between line 12 and the earth and the winding secondary is connected to the LV network. This transformer is suitable for transforming the HT T voltage (for example 3200 V) into LV voltage (230 V) but includes a magnetic core in the form of a torus, rods or ferrite pots (unlike the core of the low frequency transformer into magnetic sheet) so as to present a minimum attenuation at the frequency of transmission of the control messages, for example 130 KHz. As this type of transformer whose windings contain few turns (2 or 3 turns in the primary winding and a dozen in the secondary winding) it is difficult to withstand the application of a low frequency voltage (50Hz), the coupling module comprises necessarily a capacitor 64 connecting the primary winding of the transformer 62 to the high voltage distribution line 12 and a capacitor 66 connecting the output of the secondary winding to the LV network. The purpose of capacitors 64 and 66 being to block the low frequency (50 Hz), their value is preferably chosen so as to constitute at least approximately a resonant circuit in series with the inductance resulting from the winding of the transformer 62 to which it is connected in combination with the inductance of the distribution line, respectively the HV distribution line for capacity 64 and the LV distribution line for capacity 66. Thus, the value of capacity 64 can be between 1 and 10 nF, preferably 5 nF, and the value of the capacitance 66 can be between 100 nF and 1 μF, preferably 0.5 μF.
Si l'alimentation HTT fournie par la ligne de distribution haute tension 12 est triphasée, le module de couplage peut se présenter de deux façons différentes. Dans un premier mode de réalisation illustré sur la figure 3, un côté de l'enroulement primaire du transformateur 62 du module de couplage 69 est connectée en parallèle aux trois phases de la ligne 12 par les capacités respectives 70, 72, 74 qui ont la même valeur sensiblement égale à la valeur de la capacité 64 (figure 2), et l'autre côté est connecté à la terre comme précédemment. L'enroulement secondaire est connecté au réseau BT par une capacité 66 comme dans le cas de la figure 2.If the HT T supply supplied by the high-voltage distribution line 12 is three-phase, the coupling module can be presented in two different ways. In a first embodiment illustrated in FIG. 3, one side of the primary winding of the transformer 62 of the coupling module 69 is connected in parallel to the three phases of the line 12 by the respective capacitors 70, 72, 74 which have the same value substantially equal to the value of capacity 64 (Figure 2), and the other side is connected to earth as before. The secondary winding is connected to the LV network by a capacitor 66 as in the case of FIG. 2.
Dans un deuxième mode de réalisation illustré sur la figure 4, un côté de l'enroulement primaire du transformateur 62 du module de couplage 79 est connecté en parallèle à deux phases de la ligne de distribution haute tension par les capacités respectives 80 et 82 qui ont la même valeur sensiblement égale à la valeur de la capacité 64, et l'autre côté du transformateur est connecté directement à la troisième phase de la ligne. L'enroulement secondaire est connecté au réseau BT par une capacité 66 comme dans les deux cas précédents. A noter que cette disposition a l'avantage d'être indépendante du circuit de terre.In a second embodiment illustrated in FIG. 4, one side of the primary winding of the transformer 62 of the coupling module 79 is connected in parallel to two phases of the high voltage distribution line by the respective capacitors 80 and 82 which have the same value substantially equal to the value of capacity 64, and the other side of the transformer is connected directly to the third phase of the line. The secondary winding is connected to the LV network by a capacity 66 as in the two previous cases. Note that this arrangement has the advantage of being independent of the earth circuit.
Selon une variante de l'invention, illustrée par la figue 5, le module de couplage 85 peut comprendre en outre des composants additifs. On peut ainsi rajouter une inductance de chaque côté pour obtenir une meilleure adaptation des impédances. Ainsi, l'inductance 86 en série avec la capacité 64 a pour but d'adapter l'impédance d'entrée du module de couplage vu du côté haute tension à l'impédance caractéristique de la ligne de distribution haute tension. De la même façon, l'inductance 88 a pour but d'adapter l'impédance du module de couplage vu du côté basse tension à l'impédance caractéristique de la ligne de distribution basse tension. Selon une autre variante toujours illustrée par la figure 5, on peut ajouter une capacité d'accord en parallèle à chacun des enroulements du transformateur 62, dans le but de constituer un circuit résonant parallèle avec l'enroulement correspondant pour la fréquence de transmission des informations de contrôle (par exemple : 130 KHz) . Ainsi, la capacité 90 constitue un circuit résonant parallèle avec l'enroulement du côté HT alors que la capacité 92 constitue un circuit résonant parallèle avec l'enroulement du côté B.T. Selon une variante illustrée sur la figure 6, on peut rendre actif le module de couplage 91 par adjonction d'amplificateurs à la variante de réalisation précédemment décrite sachant que lesdits amplificateurs pourraient être également intégrés dans le mode de réalisation illustré sur la figure 2. Outre les composants passifs déjà décrits, le module de couplage comporte des moyens d'amplification bidirectionnels constitués de l'amplificateur 94 dans le sens BT -> HT et de l'amplificateur 96 dans le sens HT -> BT, l'un ou l'autre des deux amplificateurs étant sélectionné par un commutateur 98. L'alimentation des deux amplificateurs est réalisée par la source d'alimentation 100. A noter que, dans la mesure où l'ajout des amplificateurs modifie les caractéristiques du module de couplage, il est préférable d'ajouter un circuit résonant parallèle constitué de la capacité 102 et de l'inductance 104 de façon à fournir un circuit résonant parallèle pour la fréquence de transmission des informations de contrôle (130 KHz) .According to a variant of the invention, illustrated by FIG. 5, the coupling module 85 can also comprise additive components. It is thus possible to add an inductance on each side to obtain a better adaptation of the impedances. Thus, the inductance 86 in series with the capacitor 64 aims to adapt the input impedance of the coupling module seen from the high voltage side to the characteristic impedance of the high voltage distribution line. Similarly, the inductance 88 aims to adapt the impedance of the coupling module seen from the low voltage side to the characteristic impedance of the low voltage distribution line. According to another variant still illustrated in FIG. 5, it is possible to add a tuning capacity in parallel to each of the windings of the transformer 62, with the aim of constituting a parallel resonant circuit with the corresponding winding for the frequency of information transmission control (for example: 130 KHz). Thus, the capacity 90 constitutes a parallel resonant circuit with the winding on the HV side while the capacity 92 constitutes a parallel resonant circuit with the winding on the LV side. According to a variant illustrated in FIG. 6, the module can be made active. coupling 91 by adding amplifiers to the variant embodiment described above, knowing that said amplifiers could be also integrated into the embodiment illustrated in FIG. 2. In addition to the passive components already described, the coupling module comprises bidirectional amplification means consisting of the amplifier 94 in the direction BT -> HT and of the amplifier 96 in the HT -> LV direction, one or other of the two amplifiers being selected by a switch 98. The two amplifiers are supplied by the power source 100. Note that, insofar as the addition of the amplifiers modifies the characteristics of the coupling module, it is preferable to add a parallel resonant circuit consisting of the capacitor 102 and the inductor 104 so as to provide a parallel resonant circuit for the frequency of transmission of the control information (130 KHz).
On doit noter que les variantes de réalisation de l'invention qui viennent d'être décrites en référence aux figures 5 et 6 où l'alimentation est en courant monophasé, pourraient également s'appliquer à des alimentations triphasées dont le mode de réalisation préférentiel a été décrit en référence aux figures 3 et . It should be noted that the variant embodiments of the invention which have just been described with reference to FIGS. 5 and 6 where the supply is single-phase current, could also be applied to three-phase supplies whose preferred embodiment has has been described with reference to Figures 3 and.

Claims

REVENDICATIONS
1. Réseau d'éclairage haute tension comprenant une source d'alimentation d'une haute tension supérieure à 1000 volts et de basse fréquence, par exemple 50 Hz, connectée à une ligne de distribution haute tension (12), une pluralité de réseaux almentés en basse tension (16, 18,1. High voltage lighting network comprising a power source of a high voltage greater than 1000 volts and of low frequency, for example 50 Hz, connected to a high voltage distribution line (12), a plurality of supplied networks in low voltage (16, 18,
20) connectés chacun à ladite ligne de distribution haute tension au moyen d'un transformateur basse fréquence (20, 22, 24) chacun desdits réseaux basse tension étant constitué d'une ligne de distribution basse tension (42) à laquelle sont connectées des lampes d'éclairage (44, 46, 48) par l'intermédiaire de modules de contrôle de lampe (50, 52, 54) , et des moyens d'émission/réception (34, 36) pour émettre des messages à une fréquence supérieure à 3 kHz vers lesdits modules de contrôle de lampe et recevoir des messages en provenance de ces derniers par l'intermédiaire desdites lignes de distribution haute et basse tension en utilisant le courant d'alimentation basse fréquence circulant dans lesdites lignes comme courant porteur ; ledit réseau étant caractérisé en ce qu'un module de couplage (28, 30 ou 32) est connecté entre les bornes d'entrée/sortie de chacun des transformateurs basse fréquence, ledit module de couplage comprenant un transformateur (62) présentant une atténuation minimale à la fréquence de transmission des messages, ledit transformateur comportant un noyau magnétique sous forme de tore, bâtonnets ou pots de ferrite et des capacités de blocage (64, 66) pour bloquer la basse fréquence de part et d'autre dudit module de couplage. 20) each connected to said high voltage distribution line by means of a low frequency transformer (20, 22, 24) each of said low voltage networks consisting of a low voltage distribution line (42) to which lamps are connected lighting (44, 46, 48) via lamp control modules (50, 52, 54), and transmission / reception means (34, 36) for transmitting messages at a frequency higher than 3 kHz to said lamp control modules and receive messages therefrom via said high and low voltage distribution lines using the low frequency supply current flowing in said lines as carrier current; said network being characterized in that a coupling module (28, 30 or 32) is connected between the input / output terminals of each of the low frequency transformers, said coupling module comprising a transformer (62) having minimum attenuation at the frequency of message transmission, said transformer comprising a magnetic core in the form of a torus, rods or ferrite pots and blocking capacities (64, 66) for blocking the low frequency on either side of said coupling module.
Réseau d'éclairage selon la revendication 1, dans lequel ladite lig /ne de distribution haute tension (12) est une The lighting network of claim 1, wherein said high voltage distribution line (12) is a
/ ligne monophasée et lesdites capacités de blocage comprennent une capacité de blocage (64) connectée en série à' un côté de l'enroulement dudit transformateur (62) relié à ladite ligne de distribution haute tension et une capacité de blocage (66) connectée en série à un côté/ de l'enroulement dudit transformateur relié à ladite ligne de distribution basse tension (42) ./ single-phase line and said blocking capacities include a blocking capacity (64) connected in series to one side of the winding of said transformer (62) connected to said high voltage distribution line and a blocking capacity (66) connected in series on one side / of the winding of said transformer connected to said low voltage distribution line (42).
» 3. Rés /eau d'éclairage selon revendication 2, dans lequel ladite capacité de blocage (64) connectée du côté de la ligne de distribution haute tension (12) a une valeur comprise entre 1 et 10 nF et ladite capacité de blocage 15 (66) connectée du côté de la ligne de distribution basse tension (42) a une valeur comprise entre 100 nF et lμF.3. Lighting network according to claim 2, in which said blocking capacity (64) connected on the side of the high-voltage distribution line (12) has a value between 1 and 10 nF and said blocking capacity. (66) connected on the side of the low voltage distribution line (42) has a value between 100 nF and lμF.
4. Réseau d'éclairage selon la revendication 1 ou 2, dans lequel ladite ligne de distribution haute tension (12)4. Lighting network according to claim 1 or 2, wherein said high voltage distribution line (12)
20 est une ligne triphasée, et lesdites capacités de blocage comprennent trois capacités de blocage (70, 72, 74) connectées respectivement aux trois phases de ladite ligne de distribution haute tension et connectées chacune à un côté de l'enroulement dudit transformateur 5 (62) relié à ladite ligne de distribution haute tension et une capacité de blocage (66) connectée en série à un côté de l'enroulement dudit transformateur relié à ladite ligne de distribution basse tension.20 is a three-phase line, and said blocking capacities include three blocking capacities (70, 72, 74) connected respectively to the three phases of said high voltage distribution line and each connected to one side of the winding of said transformer 5 (62 ) connected to said high voltage distribution line and a blocking capacity (66) connected in series to one side of the winding of said transformer connected to said low voltage distribution line.
0 5. Réseau d'éclairage selon la revendication 1 ou 2, dans lequel ladite ligne de distribution haute tension (12) est une ligne triphasée, et lesdites capacités de blocage comprennent deux capacités de blocage (80, 82) connectées respectivement à deux des phases de ladite ligne de distribution haute tension et connectées chacune à un côté de l'enroulement dudit transformateur (62) relié à ladite ligne de distribution haute tension alors que l'autre côté dudit enroulement est connecté directement à la troisième phase de ladite ligne de distribution haute tension et une capacité de blocage (66) connectée en série à un côté de l'enroulement dudit transformateur relié à ladite ligne de distribution basse tension.5. The lighting network as claimed in claim 1 or 2, in which said high-voltage distribution line (12) is a three-phase line, and said blocking capacities comprise two blocking capacities (80, 82). respectively connected to two of the phases of said high voltage distribution line and each connected to one side of the winding of said transformer (62) connected to said high voltage distribution line while the other side of said winding is connected directly to the third phase of said high voltage distribution line and a blocking capacity (66) connected in series to one side of the winding of said transformer connected to said low voltage distribution line.
6. Réseau d'éclairage selon l'une des revendications 1 à 5 dans lequel une inductance (86) est connectée en série avec ladite capacité de blocage (64) connectée du côté de ladite ligne de distribution haute tension (12) dans le but d'adapter l'impédance d'entrée du module de couplage vu du côté haute tension à l'impédance caractéristique de ladite ligne de distribution haute tension et une inductance (88) est connectée en série avec ladite capacité de blocage (66) connectée du côté de ladite ligne de distribution basse tension (42) dans le but d'adapter l'impédance d'entrée du module de couplage vu du côté basse tension à l'impédance caractéristique de ladite ligne de distribution électrique basse tension.6. Lighting network according to one of claims 1 to 5 wherein an inductor (86) is connected in series with said blocking capacity (64) connected to the side of said high voltage distribution line (12) for the purpose to adapt the input impedance of the coupling module seen from the high voltage side to the characteristic impedance of said high voltage distribution line and an inductor (88) is connected in series with said blocking capacity (66) connected from side of said low voltage distribution line (42) in order to adapt the input impedance of the coupling module seen from the low voltage side to the characteristic impedance of said low voltage electrical distribution line.
7. Réseau d'éclairage selon l'une des revendications 1 à 6, dans lequel une capacité d'accord (90) est connectée en parallèle aux bornes de l'enroulement dudit transformateur (62) relié à ladite ligne de distribution tension (12) dans le but de constituer un circuit résonant parallèle avec ledit enroulement pour la fréquence de transmission des message, et une capacité d'accord (92) est connectée en parallèle aux bornes de l'enroulement dudit transformateur (62) relié à ladite ligne de distribution électrique basse tension (42) dans le but de constituer un circuit résonant parallèle avec ledit enroulement pour la fréquence de transmission des messages .7. Lighting network according to one of claims 1 to 6, in which a tuning capacitor (90) is connected in parallel to the terminals of the winding of said transformer (62) connected to said voltage distribution line (12 ) in order to constitute a parallel resonant circuit with said winding for the frequency of transmission of the messages, and a capacitance agreement (92) is connected in parallel to the terminals of the winding of said transformer (62) connected to said low voltage electrical distribution line (42) in order to constitute a resonant circuit parallel with said winding for the transmission frequency messages .
8. Réseau d'éclairage selon l'une quelconque des revendications précédentes, dans lequel chaque module de couplage comprend en outre des moyens d' amplification bi-directionnels (94, 96, 98) connectés en série à un côté de l'enroulement dudit transformateur (62) relié à ladite ligne de distribution électrique basse tension8. Lighting network according to any one of the preceding claims, in which each coupling module further comprises bi-directional amplification means (94, 96, 98) connected in series to one side of the winding of said coil. transformer (62) connected to said low voltage electrical distribution line
(42) .(42).
9. Réseau d'éclairage selon la revendication 8, dans lequel un circuit résonant parallèle (102, 104) pour la fréquence de transmission des messages est connecté en série avec lesdits moyens d'amplification bi- directionnels (94, 96, 98) du côté de ladite ligne de distribution électrique basse tension. 9. The lighting network as claimed in claim 8, in which a parallel resonant circuit (102, 104) for the frequency of transmission of messages is connected in series with said bi-directional amplification means (94, 96, 98) of the side of said low voltage electrical distribution line.
PCT/FR2002/002919 2001-08-21 2002-08-21 A lighting circuit that uses the supply current in order to exchange lighting lamp control messages WO2003019989A1 (en)

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EP02774880A EP1425941A1 (en) 2001-08-21 2002-08-21 A lighting circuit that uses the supply current in order to exchange lighting lamp control messages

Applications Claiming Priority (2)

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FR0110968 2001-08-21
FR0110968A FR2828982B1 (en) 2001-08-21 2001-08-21 LIGHTING NETWORK USING THE SUPPLY CURRENT FOR THE EXCHANGE OF LIGHTING LAMP CONTROL MESSAGES

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ES2566229A1 (en) * 2015-10-29 2016-04-11 Soluciones Led Y Diseños, S.L Lighting equipment programming device without bus or specific communications channel (Machine-translation by Google Translate, not legally binding)

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FR2669499A1 (en) * 1990-11-20 1992-05-22 Crevon Francoise Installation with lighting effects, and transmitter and receiver members for such an installation
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011138476A2 (en) * 2010-05-07 2011-11-10 Ernesto Garcelan Rodriguez Remote control device with narrow-band communication using the electrical grid
WO2011138476A3 (en) * 2010-05-07 2012-08-02 Ernesto Garcelan Rodriguez Remote control device with narrow-band communication using the electrical grid
ES2566229A1 (en) * 2015-10-29 2016-04-11 Soluciones Led Y Diseños, S.L Lighting equipment programming device without bus or specific communications channel (Machine-translation by Google Translate, not legally binding)

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FR2828982A1 (en) 2003-02-28
EP1425941A1 (en) 2004-06-09
CN1545825A (en) 2004-11-10
FR2828982B1 (en) 2004-05-28

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