EP1515866A1 - Primary conductor arrangement for a system for inductive transmission of electric power - Google Patents

Primary conductor arrangement for a system for inductive transmission of electric power

Info

Publication number
EP1515866A1
EP1515866A1 EP03706547A EP03706547A EP1515866A1 EP 1515866 A1 EP1515866 A1 EP 1515866A1 EP 03706547 A EP03706547 A EP 03706547A EP 03706547 A EP03706547 A EP 03706547A EP 1515866 A1 EP1515866 A1 EP 1515866A1
Authority
EP
European Patent Office
Prior art keywords
conductor arrangement
primary conductor
lines
line
outgoing
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.)
Withdrawn
Application number
EP03706547A
Other languages
German (de)
French (fr)
Inventor
Andrew Green
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.)
Wampfler AG
Original Assignee
Wampfler 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 Wampfler AG filed Critical Wampfler AG
Publication of EP1515866A1 publication Critical patent/EP1515866A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
    • B60M7/006—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for auto-scooters or the like, the power being supplied over a broad surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/005—Current collectors for power supply lines of electrically-propelled vehicles without mechanical contact between the collector and the power supply line
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type

Definitions

  • the invention relates to a primary conductor arrangement for a system for inductive transmission of electrical energy according to the preamble of claim 1.
  • Conductor arrangements for contactless inductive energy transmission in which a primary circuit is formed by two parallel lines running at a distance from one another, is known from the prior art, for example from DE 197 46 919 AI.
  • a movable consumer for example a ground transport vehicle, can be moved along such a primary conductor arrangement and has a secondary circuit for inductively absorbing electrical energy from the magnetic field generated by the current-carrying primary circuit.
  • the known primary conductor arrangements are formed by a conductor loop laid along a route, which is connected to a power source.
  • the conductor loop thus comprises an outgoing line and a return line, which are laid parallel and at a predetermined distance from one another.
  • the primary circuit thus formed can be supplied with current by the current source, the current flow in the outgoing line and the return line running in the opposite direction.
  • a sufficient energy density of the magnetic field generated by the primary circuit along the conductor arrangement can only be achieved with conventional current sources in the case of conductor arrangements with a limited range, ie. H. limited length of the forward and return line can be achieved.
  • any length of the conductor arrangement is required in principle in order to enable a corresponding range of the ground transport vehicle.
  • a field course that is as homogeneous as possible, ie. H. the density of the magnetic field generated by the primary circuit is as homogeneous as possible.
  • the invention is based on the fact that the conductor arrangement is subdivided into a plurality of sections which adjoin one another, each section having a forward and a return line and connecting lines connecting the forward and return line, and that the sections are arranged with respect to one another in such a way that two successive sections meet overlap in an area near their connecting line.
  • Figure 1 Schematic representation of a primary conductor arrangement
  • Figure 2 Detailed perspective view in the overlap area of two sections of the
  • Figure 3 Detailed perspective view in the overlap area of two sections of the
  • Figure 5 Perspective representation of an intersection of two primary conductor arrangements according to Figure 1;
  • FIG. 6 Perspective detailed representation of a forward and return line of a section of the primary conductor arrangement from FIG. 1 with tuning capacitors interposed in the forward and return lines.
  • FIG. 1 schematically shows a primary circuit formed by a primary conductor arrangement 1 according to the invention for a system for the inductive transmission of electrical energy to a consumer which can be moved along the primary conductor arrangement 1.
  • the primary conductor arrangement 1 is divided into a plurality of adjoining sections (A-H). Each of these sections (A-H) has a forward line 2, a return line 3 and a connecting line 5 connecting the forward and return lines.
  • the forward and return lines of the respective sections (A - H) are designated in FIG. 1 with the reference numerals 2X, 3X and 5X, where X denotes the respective conductor section (A - H).
  • the forward lines 2 and return lines 3 are arranged parallel to each other in each section A - H and the connecting lines 5 form the transition between forward line 2 and return line 3.
  • parallel arrangement of the forward and return lines means that the forward line and the return line 3 run at a constant distance from each other.
  • the course can be straight, as in sections A, C, E and G, as well as bent to form a curve, as in sections, B, D, F and H.
  • the cables forming the primary conductor arrangement 1 are designed as stranded conductors ,
  • a current source 4 is provided in each section (A - H) of the primary conductor arrangement 1, through which current can be applied to the conductor loop of the respective section formed by the outgoing line 2, connecting line 5 and return line 3.
  • the outgoing line 2A is connected to a current source 4A via supply lines 8A and 9A.
  • the feed lines 8A, 9A run approximately perpendicular to the straight feed line 2A.
  • the further sections B to H are each equipped with a current source 4B, 4C, ..., 4H, which is connected either to the outgoing line 2 or to the return line 3.
  • Each section of the conductor arrangement is followed by an adjacent section as an extension of the outgoing line 2 or the return line 3 on both sides of the section, as shown in FIG.
  • section A adjoins section B to the right and section H to the left.
  • Sections adjoining one another are arranged in such a way that they overlap in an overlap area 7 near the respective connecting lines 5 in such a way that in the overlap area 7 the outgoing line 2X of one area immediately above and closely adjacent to the corresponding outgoing line 2X ⁇ 1 of the adjacent section runs.
  • FIG. 2 A detailed view of the overlap area 7 of two adjoining sections A, B is shown in FIG. 2. It can be seen from FIG. 2 that the length of the overlap region 7 in the longitudinal direction of the outgoing and return lines corresponds approximately to the length of the semicircularly curved connecting lines 5A and 5B. In the top view, the conductor arrangement therefore appears in the overlap region 7 like a circular winding.
  • the overlap area can also be made larger, for example approximately twice as long as the length of the connecting lines.
  • FIG. 3 also shows the overlap area 7 of two adjoining sections A and B, wherein in the vicinity of the overlap area 7 current feed points are provided to act on the outgoing lines 2A and 2B of the respective sections A and B.
  • current feed points are formed by supply lines 8B, 9B or 8A, 9A, which branch off from the respective feed line 2B or 2A and are connected to the current source 4.
  • the supply lines 8B, 9B and 8A, 9A run for the most part approximately perpendicular to the respective outgoing lines 2B and 2A.
  • the feed lines 8, 9 are laid close together in plastic pipes 10. As an alternative to the plastic pipe 10, the feed lines 8 and 9 can also be fastened tightly to one another by means of cable ties.
  • the vertical orientation of the feed lines 8, 9 with respect to the outgoing line 2 has the effect that there are no undesirable magnetic interference fields in the longitudinal direction of the outgoing or return line be generated.
  • the angled or curved section, which forms the transition from the feed line 8, 9 to the respective outgoing line 2 or return line 3, is as short as possible and in the smallest possible radius, as far as this is possible without kinking the cable.
  • the two feed lines 8, 9 can also be laid such that they lie one above the other in the curved region. In this way, the most homogeneous possible field distribution of the magnetic field generated by the current-carrying conductor arrangement is achieved in the vicinity of the current feed points.
  • FIG. 4 shows an embodiment in which the current feed point of a section B is arranged near the overlap region 7.
  • the feed point of the subsequent section A is further away from the overlap area 7 and is therefore no longer shown in the detailed view in FIG.
  • FIG. 5 shows an intersection of two primary conductor arrangements 1 a and 1 b.
  • the forward and return lines of two sections Bi b and B ⁇ a of the two primary conductor arrangements la and lb intersect in an intersection region 11.
  • the overlap regions 7, at which the respectively adjacent sections Ai b and Aj a of the associated primary conductor arrangements connect la or lb, are preferably at a sufficient distance from the intersection area 11.
  • a sufficient distance is understood to mean at least the electrically effective length of the secondary winding of the consumer device of the movable consumer.
  • At least one tunable capacitor 12 is provided in each section (A-H) of the primary conductor arrangement.
  • FIG. 6 shows a section of a primary conductor arrangement in a detailed view. Both in the outgoing line 2 and in the return line 3 there is a tunable capacitor 12 via branch lines 13, 14; 15, 16 interposed.
  • the branch lines 13, 14 of the outgoing line 2 are offset with respect to one another with respect to the branch lines 15, 16 of the return line 3 along the primary conductor arrangement, the distance being at least the same size or greater than the electrically effective extension of the consumer device of the movable consumer.

Abstract

The invention relates to a primary conductor arrangement (1) for a system for inductive transmission of electric power. The conductor arrangement comprises an outgoing line and a return line (3) which are arranged in a parallel position at least in sections and which can be connected to a current source (4) such that the outgoing line and return line can be impinged upon by electric current. The inventive primary conductor arrangement makes it possible to provide as large a range as possible for a consumer which can be displaced along the primary conductor arrangement and to provide a field-strength distribution which is as homogeneous as possible along the entire arrangement by dividing the conductor arrangement (1) into a plurality of adjacent sections (A, B, C, D, E, F, G, H) . Each section comprises an outgoing line and a return line (2; 3) in addition to connection lines (5) connecting the outgoing and return lines. The sections are disposed in such a way that two successive sections overlap in a region (7) close to the connection line (5).

Description

Primärleiteranordnung für ein System zur induktiven Übertragung elektrischer Energie Primary conductor arrangement for a system for inductive transmission of electrical energy
Die Erfindung betrifft eine Primärleiteranordnung für ein System zur induktiven Übertragung elektrischer Energie nach dem Oberbegriff von Anspruch 1.The invention relates to a primary conductor arrangement for a system for inductive transmission of electrical energy according to the preamble of claim 1.
Leiteranordnungen zur berührungslosen induktiven Energieübertragung, bei denen ein Primärkreis durch zwei in Abstand zueinander verlaufende, parallele Leitungen gebildet wird, ist aus dem Stand der Technik, beispielsweise der DE 197 46 919 AI bekannt. Längs einer solchen Primärleiteranordnung ist ein beweglicher Verbraucher, beispielsweise ein Bodentransportfahrzeug, verfahrbar, welches einen Sekundärkreis aufweist zur induktiven Aufnahme elektrischer Energie aus dem von dem stromdurchflossenen Primärkreis erzeugten Magnetfeld.Conductor arrangements for contactless inductive energy transmission, in which a primary circuit is formed by two parallel lines running at a distance from one another, is known from the prior art, for example from DE 197 46 919 AI. A movable consumer, for example a ground transport vehicle, can be moved along such a primary conductor arrangement and has a secondary circuit for inductively absorbing electrical energy from the magnetic field generated by the current-carrying primary circuit.
Die bekannten Primärleiteranordnungen werden von einer entlang einer Strecke verlegten Leiterschleife gebildet, welche an eine Stromquelle angeschlossen ist. Die Leiterschleife umfaßt damit eine Hinleitung und eine Rückleitung, welche parallel und in einem vorgegebenen Abstand zueinander verlaufend verlegt sind. Durch die Stromquelle kann der so gebildete Primärkreis mit Strom beaufschlagt werden, wobei der Stromfluß in der Hinleitung und der Rückleitung in entgegengesetzte Richtung verläuft.The known primary conductor arrangements are formed by a conductor loop laid along a route, which is connected to a power source. The conductor loop thus comprises an outgoing line and a return line, which are laid parallel and at a predetermined distance from one another. The primary circuit thus formed can be supplied with current by the current source, the current flow in the outgoing line and the return line running in the opposite direction.
Eine ausreichende Energiedichte des durch den Primärkreis erzeugten Magnetfeldes entlang der Leiteranordnung kann mit herkömmlichen Stromquellen nur bei Leiteranordnungen mit begrenzter Reichweite, d. h. begrenzter Länge der Hin- und Rückleitung, erzielt werden. Insbesondere bei der induktiven Energieversorgung von Bodentransportfahrzeugen ist jedoch eine im Prinzip beliebige Länge der Leiteranordnung erforderlich, um eine entsprechende Reichweite des Bodentransportfahrzeugs zu ermöglichen. Ferner ist wünschenswert, daß entlang des Primärkreises ein möglichst homogener Feldverlauf, d. h. eine möglichst homogene Dichte des vom Primärkreis erzeugten Magnetfeldes, herrscht.A sufficient energy density of the magnetic field generated by the primary circuit along the conductor arrangement can only be achieved with conventional current sources in the case of conductor arrangements with a limited range, ie. H. limited length of the forward and return line can be achieved. In the inductive energy supply of ground transport vehicles in particular, however, any length of the conductor arrangement is required in principle in order to enable a corresponding range of the ground transport vehicle. Furthermore, it is desirable that a field course that is as homogeneous as possible, ie. H. the density of the magnetic field generated by the primary circuit is as homogeneous as possible.
Es besteht daher die Aufgabe eine Primärleiteranordnung für die induktive Übertragung elektrischer Energie auf einen beweglichen Verbraucher bereitzustellen, welche eine möglichst große Reichweite des entlang der Primärleiteranordnung verfahrbaren Verbrauchers ermöglicht und zudem entlang der Primärleiteranordnung bei Strombeaufschlagung einen möglichst homogenen Feldverlauf erzeugt.It is therefore an object to provide a primary conductor arrangement for the inductive transmission of electrical energy to a movable consumer, which has the greatest possible range of that which can be moved along the primary conductor arrangement Consumers enabled and also generated as homogeneous a field as possible along the primary conductor arrangement when current is applied.
Diese Aufgabe wird bei einer Primärleiteranordnung nach dem Oberbegriff von Anspruch 1 durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Ausführungsbeispiele der Erfindung sind den Unteransprüchen zu entnehmen.This object is achieved in a primary conductor arrangement according to the preamble of claim 1 by the features specified in the characterizing part of claim 1. Advantageous exemplary embodiments of the invention can be found in the subclaims.
Die Erfindung geht davon aus, daß die Leiteranordnung in eine Mehrzahl aneinander anschließende Abschnitte unterteilt ist, wobei jeder Abschnitt eine Hin- und eine Rückleitung sowie die Hin- und Rückleitung verbindende Verbindungsleitungen aufweist und daß die Abschnitte so zueinander angeordnet sind, daß zwei aufeinanderfolgende Abschnitte sich in einem Bereich nahe ihrer Verbindungsleitung überlappen. Durch die Unterteilung des Primärkreises in mehrere Abschnitte, kann eine ausreichend hohe magnetische Felddichte entlang der gesamten Leiteranordnung erzielt werden, weil jeder Abschnitt separat von einer Stromquelle mit Strom beaufschlagt werden kann. Durch die Überlappung der aneinander anschließenden Abschnitte an ihren Rändern wird eine homogene Feldverteilung in diesem Übergangsbereich gewährleistet. Ein möglichst homogener Übergang des magnetischen Feldverlaufs von einem zu dem benachbarten Abschnitt gewährleistet eine gleichmäßige Energieversorgung des beweglichen Verbrauchers entlang der Strecke des Primärkreises und ist insbesondere auch dann erforderlich, wenn das Magnetfeld des Primärkreises gleichzeitig zur Spurführung des beweglichen Verbrauchers entlang der Strecke verwendet wird.The invention is based on the fact that the conductor arrangement is subdivided into a plurality of sections which adjoin one another, each section having a forward and a return line and connecting lines connecting the forward and return line, and that the sections are arranged with respect to one another in such a way that two successive sections meet overlap in an area near their connecting line. By dividing the primary circuit into several sections, a sufficiently high magnetic field density can be achieved along the entire conductor arrangement, because each section can be supplied with current separately from a current source. The overlapping of the adjoining sections at their edges ensures a homogeneous field distribution in this transition area. The most homogeneous possible transition of the magnetic field profile from one to the adjacent section ensures a uniform energy supply for the mobile consumer along the route of the primary circuit and is particularly necessary when the magnetic field of the primary circuit is simultaneously used to track the mobile consumer along the route.
Die Erfindung wird im folgenden anhand von Ausfuhrungsbeispielen unter Bezugnahme auf die begleitenden Zeichnungen näher erläutert. Die Zeichnungen zeigen in:The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying drawings. The drawings show in:
Figur 1 : Schematische Darstellung einer Primärleiteranordnung;Figure 1: Schematic representation of a primary conductor arrangement;
Figur 2: Perspektivische Detailansicht im Überlappungsbereich zweier Abschnitte derFigure 2: Detailed perspective view in the overlap area of two sections of the
Primärleiteranordnung von Figur 1 ;Primary conductor arrangement of Figure 1;
Figur 3: Perspektivische Detailansicht im Überlappungsbereich zweier Abschnitte derFigure 3: Detailed perspective view in the overlap area of two sections of the
Primärleiteranordnung von Figur 1 mit zwei Strom-Einspeispunkten nahe des Überlappungsbereichs; Figur 4: Perspektivische Detailansicht im Überlappungsbereich zweier Abschnitte der1 with two current feed points near the overlap area; Figure 4: Detailed perspective view in the overlap area of two sections of the
Primärleiteranordnung von Figur 1 mit einem Strom-Einspeispunkt nahe des Überlappungsbereichs;1 with a current feed point near the overlap area;
Figur 5: Perspektivische Darstellung einer Kreuzung von zwei Primärleiteranordnungen gemäß Figur 1 ;Figure 5: Perspective representation of an intersection of two primary conductor arrangements according to Figure 1;
Figur 6: Perspektivische Detaildarstellung einer Hin- und Rückleitung eines Abschnittes der Primärleiteranordnung von Figur 1 mit in der Hin- bzw. Rückleitung zwischengeschalteten Abstimm-Kondensatoren.FIG. 6: Perspective detailed representation of a forward and return line of a section of the primary conductor arrangement from FIG. 1 with tuning capacitors interposed in the forward and return lines.
In Figur 1 ist schematisch ein von einer erfindungsgemäßen Primärleiteranordnung 1 gebildeter Primärkreis für ein System zur induktiven Übertragung elektrischer Energie auf einen entlang der Primärleiteranordnung 1 verfahrbaren Verbraucher gezeigt. Die Primärleiteranordnung 1 ist in eine Mehrzahl aneinander anschließende Abschnitte (A-H) unterteilt. Jeder dieser Abschnitte (A-H) weist eine Hinleitung 2, eine Rückleitung 3 sowie eine die Hin- und Rückleitung verbindende Verbindungsleitung 5 auf. Die Hin- und Rückleitungen der jeweiligen Abschnitte (A - H) sind in Figur 1 jeweils mit den Bezugsziffern 2X, 3X bzw. 5X bezeichnet, wobei X den jeweiligen Leiterabschnitt (A - H) kennzeichnet.FIG. 1 schematically shows a primary circuit formed by a primary conductor arrangement 1 according to the invention for a system for the inductive transmission of electrical energy to a consumer which can be moved along the primary conductor arrangement 1. The primary conductor arrangement 1 is divided into a plurality of adjoining sections (A-H). Each of these sections (A-H) has a forward line 2, a return line 3 and a connecting line 5 connecting the forward and return lines. The forward and return lines of the respective sections (A - H) are designated in FIG. 1 with the reference numerals 2X, 3X and 5X, where X denotes the respective conductor section (A - H).
Die Hinleitungen 2 und Rückleitungen 3 sind dabei in jedem Abschnitt A - H parallel zueinander angeordnet und die Verbindungsleitungen 5 bilden den Übergang zwischen Hinleitung 2 und Rückleitung 3. Unter paralleler Anordnung der Hin- und Rückleitung wird hierbei verstanden, dass die Hinleitung und die Rückleitung 3 in gleichbleibendem Abstand zueinander verlaufen. Der Verlauf kann dabei gerade sein, wie in den Abschnitten A, C, E und G, als auch zur Bildung einer Kurve gebogen, wie in den Abschnitten, B, D, F und H. Die die Primärleiteranordung 1 bildenden Kabel sind als Litzleiter ausgebildet. In jedem Abschnitt (A - H) der Primärleiteranordnung 1 ist eine Stromquelle 4 vorgesehen, durch welche die durch Hinleitung 2, Verbindungsleitung 5 und Rückleitung 3 gebildete Leiterschleife des jeweiligen Abschnitts mit Strom beaufschlagt werden kann. In dem in Figur 1 mit Bezugszeichen A bezeichneten Abschnitt ist die Hinleitung 2A über Zuführungsleitungen 8A und 9A an eine Stromquelle 4A angeschlossen. Die Zuführungsleitungen 8A, 9A verlaufen in etwa senkrecht zur gestreckten Hinleitung 2A. Entsprechend sind die weiteren Abschnitte B bis H mit jeweils einer Stromquelle 4B, 4C,...,4H ausgestattet, welche entweder an die Hinleitung 2 oder an die Rückleitung 3 angeschlossen ist.The forward lines 2 and return lines 3 are arranged parallel to each other in each section A - H and the connecting lines 5 form the transition between forward line 2 and return line 3. In this case, parallel arrangement of the forward and return lines means that the forward line and the return line 3 run at a constant distance from each other. The course can be straight, as in sections A, C, E and G, as well as bent to form a curve, as in sections, B, D, F and H. The cables forming the primary conductor arrangement 1 are designed as stranded conductors , A current source 4 is provided in each section (A - H) of the primary conductor arrangement 1, through which current can be applied to the conductor loop of the respective section formed by the outgoing line 2, connecting line 5 and return line 3. In the section designated by reference symbol A in FIG. 1, the outgoing line 2A is connected to a current source 4A via supply lines 8A and 9A. The feed lines 8A, 9A run approximately perpendicular to the straight feed line 2A. Correspondingly, the further sections B to H are each equipped with a current source 4B, 4C, ..., 4H, which is connected either to the outgoing line 2 or to the return line 3.
An jedem Abschnitt der Leiteranordnung schließt sich in Verlängerung der Hinleitung 2 bzw. der Rückleitung 3 zu beiden Seiten des Abschnitts jeweils ein benachbarter Abschnitt an, wie in Figur 1 dargestellt. Beispielsweise schließt sich an den Abschnitt A nach rechts der Abschnitt B und nach links der Abschnitt H an. Aneinander anschließende Abschnitte sind zueinander so angeordnet, daß sie sich in einem Überlappungsbereich 7, nahe der jeweiligen Verbindungsleitungen 5 in der Weise überlappen, daß im Überlappungsbereich 7 die Hinleitung 2X des einen Bereichs unmittelbar oberhalb und eng anliegend zur entsprechenden Hinleitung 2X±1 des benachbarten Abschnitts verläuft. Entsprechendes trifft auf die Rückleitungen 3 benachbarter Abschnitte im Überlappungsbereich 7 zu.Each section of the conductor arrangement is followed by an adjacent section as an extension of the outgoing line 2 or the return line 3 on both sides of the section, as shown in FIG. For example, section A adjoins section B to the right and section H to the left. Sections adjoining one another are arranged in such a way that they overlap in an overlap area 7 near the respective connecting lines 5 in such a way that in the overlap area 7 the outgoing line 2X of one area immediately above and closely adjacent to the corresponding outgoing line 2X ± 1 of the adjacent section runs. The same applies to the return lines 3 of adjacent sections in the overlap region 7.
Eine Detailansicht des Überlappungsbereichs 7 von zwei aneinander anschließenden Abschnitten A, B ist in Figur 2 gezeigt. Aus Figur 2 ist ersichtlich, daß die Länge des Überlappungsbereichs 7 in Längsrichtung der Hin- bzw. Rückleitung in etwa der Länge der halbkreisförmig gekrümmten Verbindungsleitungen 5A bzw. 5B entspricht. In der Draufsicht erscheint die Leiteranordnung daher im Überlappungsbereich 7 wie eine kreisförmige Wicklung. Der Überlappungsbereich kann auch größer ausgebildet sein, bspw. etwa doppelt so lang wie die Länge der Verbindungsleitungen.A detailed view of the overlap area 7 of two adjoining sections A, B is shown in FIG. 2. It can be seen from FIG. 2 that the length of the overlap region 7 in the longitudinal direction of the outgoing and return lines corresponds approximately to the length of the semicircularly curved connecting lines 5A and 5B. In the top view, the conductor arrangement therefore appears in the overlap region 7 like a circular winding. The overlap area can also be made larger, for example approximately twice as long as the length of the connecting lines.
In Figur 3 ist ebenfalls der Überlappungsbereich 7 zweier aneinander anschließender Abschnitte A und B gezeigt, wobei in der Nähe des Überlappungsbereichs 7 Strom- Einspeispunkte zur Beaufschlagung der Hinleitungen 2A und 2B der jeweiligen Abschnitte A und B vorgesehen sind. Diese Strom-Einspeispunkte werden durch Zuführungsleitungen 8B, 9B bzw. 8A, 9A gebildet, welche von der jeweiligen Hinleitung 2B bzw. 2A abzweigen und an die Stromquelle 4 angeschlossen sind. Die Zuführungsleitungen 8B, 9B bzw. 8A, 9A verlaufen größtenteils in etwa senkrecht zur jeweiligen Hinleitung 2B bzw. 2A. Die Zuführungsleitungen 8, 9 sind eng aneinanderliegend in Kunststoffrohren 10 verlegt. Alternativ zum Kunststoffrohr 10 können die Zufuhrungsleitungen 8 und 9 auch mittels Kabelbinder eng aneinanderliegend befestigt werden. Die bezüglich der Hinleitung 2 senkrechte Ausrichtung der Zuführungsleitungen 8, 9 bewirkt, daß durch diese in Längsrichtung der Hin- bzw. Rückleitung keine unerwünschten magnetischen Störfelder erzeugt werden. Der abgewinkelte bzw. gebogene Abschnitt, welcher den Übergang von der Zuführungsleitung 8, 9 in die jeweilige Hinleitung 2 bzw. Rückleitung 3 bildet ist dabei möglichst kurz und in möglichst engem Radius ausgebildet, soweit dies ohne Knicken des Kabels möglich ist. Die beiden Zuführungsleitungen 8, 9 können in einem hier nicht dargestellten Ausführungsbeispiel auch so verlegt werden, daß sie im gebogenen Bereich übereinander liegen. Auf diese Weise wird eine möglichst homogene Feldverteilung des von der stromdurchflossenen Leiteranordnung erzeugten Magnetfelds in der Nähe der Strom- Einspeispunkte erzielt.FIG. 3 also shows the overlap area 7 of two adjoining sections A and B, wherein in the vicinity of the overlap area 7 current feed points are provided to act on the outgoing lines 2A and 2B of the respective sections A and B. These current feed points are formed by supply lines 8B, 9B or 8A, 9A, which branch off from the respective feed line 2B or 2A and are connected to the current source 4. The supply lines 8B, 9B and 8A, 9A run for the most part approximately perpendicular to the respective outgoing lines 2B and 2A. The feed lines 8, 9 are laid close together in plastic pipes 10. As an alternative to the plastic pipe 10, the feed lines 8 and 9 can also be fastened tightly to one another by means of cable ties. The vertical orientation of the feed lines 8, 9 with respect to the outgoing line 2 has the effect that there are no undesirable magnetic interference fields in the longitudinal direction of the outgoing or return line be generated. The angled or curved section, which forms the transition from the feed line 8, 9 to the respective outgoing line 2 or return line 3, is as short as possible and in the smallest possible radius, as far as this is possible without kinking the cable. In an embodiment not shown here, the two feed lines 8, 9 can also be laid such that they lie one above the other in the curved region. In this way, the most homogeneous possible field distribution of the magnetic field generated by the current-carrying conductor arrangement is achieved in the vicinity of the current feed points.
In Figur 4 ist eine Ausführungsform gezeigt, bei der der Strom-Einspeispunkt eines Abschnittes B nahe des Überlappungsbereichs 7 angeordnet ist. Der Einspeispunkt des anschließenden Abschnittes A hingegen ist vom Überlappungsbereich 7 weiter entfernt und daher in der Detailansicht der Figur 4 nicht mehr dargestellt.FIG. 4 shows an embodiment in which the current feed point of a section B is arranged near the overlap region 7. The feed point of the subsequent section A, however, is further away from the overlap area 7 and is therefore no longer shown in the detailed view in FIG.
In Figur 5 ist eine Kreuzung von zwei Primärleiteranordnungen la und lb gezeigt. Wie dargestellt, kreuzen sich die Hin- bzw. Rückleitung von zwei Abschnitten Bib und Bιa der beiden Primärleiteranordnungen la und lb in einem Kreuzungsbereich 11. Die Überlappungsbereiche 7, an denen sich die jeweils benachbarten Abschnitte Aib bzw. Aja der zugehörigen Primärleiteranordnungen la bzw. lb anschließen, liegen bevorzugt in hinreichendem Abstand zum Kreuzungsbereich 11. Unter hinreichendem Abstand wird hierbei mindestens die elektrisch wirksame Länge der Sekundärwicklung der Abnehmervorrichtung des beweglichen Verbrauchers verstanden.FIG. 5 shows an intersection of two primary conductor arrangements 1 a and 1 b. As shown, the forward and return lines of two sections Bi b and Bι a of the two primary conductor arrangements la and lb intersect in an intersection region 11. The overlap regions 7, at which the respectively adjacent sections Ai b and Aj a of the associated primary conductor arrangements connect la or lb, are preferably at a sufficient distance from the intersection area 11. A sufficient distance is understood to mean at least the electrically effective length of the secondary winding of the consumer device of the movable consumer.
Um eine Resonanzabstimmung zwischen der Primärleiteranordnung und der die Sekundärwicklung tragenden Abnehmervorrichtung des beweglichen Verbrauchers zu ermöglichen, ist in jedem Abschnitt (A-H) der Primärleiteranordnung mindestens ein durchstimmbarer Kondensator 12 vorgesehen. In Figur 6 ist ein Abschnitt einer Primärleiteranordnung in einer Detailansicht gezeigt. Sowohl in der Hinleitung 2 als auch in der Rückleitung 3 ist jeweils ein durchstimmbarer Kondensator 12 über Abzweigungsleitungen 13, 14; 15, 16 zwischengeschaltet. Die Abzweigungsleitungen 13, 14 der Hinleitung 2 sind dabei bezüglich der Abzweigungsleitungen 15, 16 der Rückleitung 3 längs der Primärleiteranordnung im Abstand zueinander versetzt angeordnet, wobei der Abstand zumindest gleich groß oder größer ist als die elektrisch wirksame Ausdehnung der Abnehmervorrichtung des beweglichen Verbrauchers. In order to enable resonance tuning between the primary conductor arrangement and the pickup device of the movable consumer which carries the secondary winding, at least one tunable capacitor 12 is provided in each section (A-H) of the primary conductor arrangement. FIG. 6 shows a section of a primary conductor arrangement in a detailed view. Both in the outgoing line 2 and in the return line 3 there is a tunable capacitor 12 via branch lines 13, 14; 15, 16 interposed. The branch lines 13, 14 of the outgoing line 2 are offset with respect to one another with respect to the branch lines 15, 16 of the return line 3 along the primary conductor arrangement, the distance being at least the same size or greater than the electrically effective extension of the consumer device of the movable consumer.

Claims

Ansprüche Expectations
1. Primärleiteranordnung (1) für ein System zur induktiven Übertragung elektrischer Energie, wobei die Leiteranordnung eine Hinleitung (2) und eine Rückleitung (3) aufweist, welche zumindest abschnittsweise parallel zueinander verlaufend angeordnet sind und an eine Stromquelle (4) anschließbar sind, um die Hin- und die Rückleitung mit elektrischem Strom zu beaufschlagen, dadurch gekennzeichnet, daß die Leiteranordnung (1) in eine Mehrzahl aneinander anschließende Abschnitte (A, B, C, D, E, F, G, H) unterteilt ist, wobei jeder Abschnitt eine Hin- und eine Rückleitung (2; 3) sowie die Hin- und Rückleitung verbindende Verbindungsleitungen (5) aufweist und daß die Abschnitte so zueinander angeordnet sind, daß zwei aufeinanderfolgende Abschnitte sich in einem Bereich (7) nahe ihrer Verbindungsleitung (5) überlappen.1. Primary conductor arrangement (1) for a system for inductive transmission of electrical energy, the conductor arrangement having an outgoing line (2) and a return line (3) which are arranged at least in sections running parallel to one another and can be connected to a current source (4) to apply electrical current to the supply and return lines, characterized in that the conductor arrangement (1) is subdivided into a plurality of sections (A, B, C, D, E, F, G, H) adjoining one another, each section has a forward and a return line (2; 3) as well as connecting lines (5) connecting the forward and return line and that the sections are arranged in such a way that two successive sections overlap in a region (7) near their connecting line (5) ,
2. Primärleiteranordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Länge L des Überlappungsbereichs (7) in etwa der Länge der Verbindungsleitungen (5) entspricht.2. Primary conductor arrangement according to claim 1, characterized in that the length L of the overlap region (7) corresponds approximately to the length of the connecting lines (5).
3. Primärleiteranordnung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß sich die aufeinanderfolgenden Abschnitte in Längsrichtung der Primärleiteranordnung (1) überlappen.3. Primary conductor arrangement according to one of claims 1 or 2, characterized in that the successive sections overlap in the longitudinal direction of the primary conductor arrangement (1).
4. Primärleiteranordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß im Überlappungsbereich (7) die Hin- und Rückleitung (2, 3) eines Abschnitts über der Hin- und Rückleitung des benachbarten Abschnitts liegt.4. Primary conductor arrangement according to one of claims 1 to 3, characterized in that in the overlap region (7) the outgoing and return line (2, 3) of a section lies above the outgoing and return line of the adjacent section.
5. Primärleiteranordnung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die freien Enden (6) der Hin- oder Rückleitung jedes Abschnitts mit einem Paar von Zuführungsleitungen (8, 9) verbunden sind, welche die Hin- oder Rückleitung mit einer Stromquelle (4) verbinden, wobei die Zuführungsleitungen (8, 9) in etwa senkrecht zur Hin- bzw. Rückleitung (2, 3) verlaufen. 5. Primary conductor arrangement according to one of the preceding claims, characterized in that the free ends (6) of the forward or return line of each section are connected to a pair of supply lines (8, 9) which connect the forward or return line to a current source (4th ) connect, the supply lines (8, 9) being approximately perpendicular to the outgoing and return lines (2, 3).
6. Primärleiteranordnung nach Anspruch 5, dadurch gekennzeichnet, daß die beiden, zu einem Paar korrespondierenden Zuführungsleitungen (8, 9) eines Abschnitts jeweils einen geraden und einen daran anschließenden gekrümmten Bereich aufweisen, wobei die geraden Bereiche parallel zueinander und eng nebeneinander liegend verlaufen und die gekrümmten Bereiche der beiden Zuführungsleitungen sich übereinanderliegend kreuzen.6. Primary conductor arrangement according to claim 5, characterized in that the two, corresponding to a pair of supply lines (8, 9) of a section each have a straight and an adjoining curved area, the straight areas parallel to each other and lying close to each other and the curved areas of the two feed lines intersect one another.
7. System zur induktiven Übertragung elektrischer Energie mit einer Primärleiteranordnung7. System for inductive transmission of electrical energy with a primary conductor arrangement
(1) nach einem der voranstehenden Ansprüche zur Übertragung elektrischer Energie auf einen entlang der Primärleiteranordnung (1) beweglichen Verbraucher, wobei der Verbraucher eine Abnehmervorrichtung aufweist zur induktiven Aufnahme elektrischer Energie von dem von der Primärleiteranordnung (1) erzeugten Magnetfeld.(1) according to one of the preceding claims for transmitting electrical energy to a consumer movable along the primary conductor arrangement (1), the consumer having a pickup device for inductively receiving electrical energy from the magnetic field generated by the primary conductor arrangement (1).
8. System nach Anspruch 7, dadurch gekennzeichnet, daß jeder Abschnitt (A, B, C, D, E, F, G, H) der Primärleiteranordnung (1) von einer separaten Stromquelle (4) mit elektrischem Strom versorgt wird.8. System according to claim 7, characterized in that each section (A, B, C, D, E, F, G, H) of the primary conductor arrangement (1) from a separate current source (4) is supplied with electrical current.
9. System nach einem der Ansprüche 7 oder 8, gekennzeichnet durch zwei sich kreuzende Primärleiteranordnungen (la, lb) nach einem der Ansprüche 1 bis 4, wobei die Überlappungsbereiche (7) der Abschnitte jeder Leiteranordnung (la, lb) außerhalb des Kreuzungsbereichs (11) liegen.9. System according to one of claims 7 or 8, characterized by two intersecting primary conductor arrangements (la, lb) according to one of claims 1 to 4, wherein the overlap regions (7) of the sections of each conductor arrangement (la, lb) outside the crossing region (11 ) lie.
10. System nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß zur Resonanzabstimmung in jedem Abschnitt der Leiteranordnung jeweils in der Hinleitung10. System according to any one of claims 7 to 9, characterized in that for resonance tuning in each section of the conductor arrangement in each case in the outgoing line
(2) und der Rückleitung (3) mindestens ein abstimmbarer Kondensator (11, 12) zwischengeschaltet ist, der durch Abzweigungsleitungen (13, 14; 15, 16) mit der Hin- bzw Rückleitung verbunden ist, wobei die Abzweigungsleitungen (13, 14) der Hinleitung und die Abzweigungsleitungen (15, 16) der Rückleitung in einem Abstand A versetzt zueinander angeordnet sind, welcher zumindest gleich groß oder größer ist als die elektrisch wirksame Ausdehnung der Abnehmervorrichtung des Verbrauchers in Längsrichtung zur Primärleiteranordnung. (2) and the return line (3) at least one tunable capacitor (11, 12) is interposed, which is connected by branch lines (13, 14; 15, 16) to the outgoing and return lines, the branch lines (13, 14) the outgoing line and the branch lines (15, 16) of the return line are arranged offset from one another at a distance A which is at least the same size or larger than the electrically effective extension of the consumer consumer device in the longitudinal direction to the primary conductor arrangement.
EP03706547A 2002-06-12 2003-02-21 Primary conductor arrangement for a system for inductive transmission of electric power Withdrawn EP1515866A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20209092U 2002-06-12
DE20209092U DE20209092U1 (en) 2002-06-12 2002-06-12 Primary conductor arrangement for a system for the inductive transmission of electrical energy
PCT/EP2003/001777 WO2003106213A1 (en) 2002-06-12 2003-02-21 Primary conductor arrangement for a system for inductive transmission of electric power

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EP1515866A1 true EP1515866A1 (en) 2005-03-23

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JP (1) JP2005529028A (en)
KR (1) KR20050013572A (en)
CN (1) CN1659060A (en)
AU (1) AU2003208741A1 (en)
CA (1) CA2486558A1 (en)
DE (1) DE20209092U1 (en)
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MXPA04012237A (en) 2005-02-25
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KR20050013572A (en) 2005-02-04
AU2003208741A1 (en) 2003-12-31
CN1659060A (en) 2005-08-24
CA2486558A1 (en) 2003-12-24
WO2003106213A1 (en) 2003-12-24

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