WO2016008794A1 - Élément de détection de circuit résonnant parallèle comportant une bobine de découplage - Google Patents

Élément de détection de circuit résonnant parallèle comportant une bobine de découplage Download PDF

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Publication number
WO2016008794A1
WO2016008794A1 PCT/EP2015/065682 EP2015065682W WO2016008794A1 WO 2016008794 A1 WO2016008794 A1 WO 2016008794A1 EP 2015065682 W EP2015065682 W EP 2015065682W WO 2016008794 A1 WO2016008794 A1 WO 2016008794A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
primary
mag
magnetization
coupling
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.)
Ceased
Application number
PCT/EP2015/065682
Other languages
German (de)
English (en)
Inventor
Faical Turki
Jürgen MEINS
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.)
Paul Vahle GmbH and Co KG
Original Assignee
Paul Vahle GmbH and Co KG
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 Paul Vahle GmbH and Co KG filed Critical Paul Vahle GmbH and Co KG
Publication of WO2016008794A1 publication Critical patent/WO2016008794A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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 present invention relates to a primary-side or secondary-side device of an inductive power transmission system.
  • Inductive energy transfer systems are used to transfer electrical energy from the primary side to the secondary side, wherein the primary-side arrangement and the secondary-side arrangement are usually spaced apart by an air gap.
  • a periodically changing magnetic field usually with a frequency between 50-150 KHz, used.
  • the primary and secondary arrays have resonant circuits that are magnetically coupled together.
  • the stationary arrangement from which the energy is transferred from the mobile side, the secondary side.
  • electrical energy from the mobile, i. secondary side to the stationary side i. is transmitted to the primary side.
  • the side from which energy is transmitted to the other side and which is hereinafter referred to as the primary side via an inverter, which is usually fed from a constant voltage source or an intermediate circuit, and which feeds the primary-side resonant circuit.
  • the secondary-side resonant circuit is usually connected via a rectifier to a load and usually charges a battery or a capacitor.
  • the secondary side device For charging secondary side batteries and capacitances, it is desirable for the secondary side device to have constant current source performance. This can be achieved by parallel-vibrating secondary be used on the primary side and a constant current is impressed.
  • the object of the present invention is to make previously known inductive energy transmission systems more flexible.
  • the design of the primary assembly or the pickup or the coils and resonant circuits used for this purpose so that certain components of the system for different interpretations with respect to the voltage or current used are used.
  • the invention is based on the idea that the components of the primary side or the pickup, which are decisive for the magnetic coupling with the other side, for different systems with the same nominal power, but different primary side input or secondary side output voltages or flow, can be used.
  • the components, in particular the used primary side and / or secondary side oscillation circuits, which must be coordinated with respect to their vibration behavior, for different systems with the same nominal power, but different primary-side input voltages or input currents or secondary output voltages or currents are used wherein these quasi-standardized components are coupled on the primary side and / or on the secondary side by means of at least one coupling winding with the upstream primary-side inverter or on the output side with a downstream rectifier.
  • the invention is also advantageously distinguished by the fact that small rod cores and magnetization windings, which in particular can all be of the same design, can be used, which are magnetically coupled via a spool core by means of at least one decoupling winding. This advantageously results in a magnetic series connection of the magnetization, whereby the individual magnetization windings need not be designed for high voltages.
  • the magnetizing current and the load current are thus decoupled from each other, whereby different strand sizes for the at least one magnetization winding and the at least one coupling winding can be used.
  • the magnetization windings together with corresponding capacitances form oscillating circuits, from which no energy is galvanically decoupled.
  • the leakage inductance of the coupling winding can be compensated by means of at least one capacitance, which is advantageously connected in series with the coupling winding.
  • the device according to the invention can be used for the primary-side and / or for the secondary-side device. If a device is described below, it can accordingly be a primary-side device or a secondary-side device.
  • the device has a plurality of coil cores, wherein a magnetization winding in each case only surrounds or is wound around a coil core.
  • a magnetization winding in each case only surrounds or is wound around a coil core.
  • Each of these coil cores can be encompassed or wrapped by only one or more magnetization windings. If several magnetization windings are wound around the same coil core, these together form a group. It is of course possible that a number of groups of magnetization windings are provided, with their magnetization windings wound around a corresponding number of spool cores.
  • the coil cores may have a rod-shaped or a c-shaped form. It is also possible that the coil cores have a cross-sectionally E-shaped form.
  • the coil cores are magnetically coupled via the coil cores either with only one decoupling winding or with a plurality of decoupling windings.
  • the device has only one coupling winding, this surrounds all the coil cores or is wound around all coil cores, so that it is magnetically coupled via all coil cores with each of the coil cores embracing magnetization windings.
  • each of these coupling windings are magnetically coupled via all coil cores with all magnetization windings, or the coupling windings form a plurality of groups of coupling windings, wherein each group comprises only one group of coil cores or is wound around these and magnetically coupled via this group of coil cores with the magnetization windings embracing this group of coil cores.
  • the coil cores may be arranged in one or more rows and / or columns in the embodiments described above.
  • the columns and / or rows can also be arranged offset from one another and / or interlocked mesh.
  • the magnetization windings are wound centrally or eccentrically around the spool core.
  • the magnetization windings may each be wound around the central web or around one or both of the free legs of the spool core. If a C-shaped or E-shaped coil core is used, z. B. the at least one coupling winding of the angled away from the central web free legs laterally be embraced. When using rod-shaped coil cores they are also encompassed or wrapped by the coupling winding.
  • At least one magnetization winding is wound around a rod-shaped coil core, and that a plurality of rod-shaped coil cores are arranged in a row parallel to one another and each form a group, wherein at least one coupling winding surrounds or surrounds all rod-shaped coil cores of a group this is wrapped around.
  • FIG. 1 shows a first possible embodiment of a secondary-side device according to the invention with downstream rectifier
  • Fig. 2 a development of the device according to Figure 1, in which the
  • FIG. 3 shows a first possible embodiment with a primary-side device according to the invention with an upstream inverter
  • FIG. 4 shows a further development of the device according to FIG. 1, in which the
  • each coil core is formed in a longitudinal cross-section C-shaped, wherein each coil core is wound in each case only by a magnetization winding and the magnetization windings are magnetically magnetized over the coil cores with a rectangularly formed coupling winding. coupled, which is encompassed by at least three sides of each bobbin;
  • FIG. 6 shows a second possible embodiment, in which a plurality of rod-shaped
  • each Spu ⁇ handlebars is wrapped centrally by only one magnetization winding, wherein each right and left next to the magnetization windings in the longitudinal cross-section rectangular or oval coupling winding is arranged, each embrace all the coil cores;
  • Fig. 7 a third possible embodiment, in which also several
  • rod-shaped coil cores are arranged parallel to each other, wherein each coil core is wound by two eccentrically arranged magnetization windings, wherein a longitudinal cross-sectionally rectangular or oval coupling winding is arranged centrally between the magnetization windings, which surrounds all the coil cores;
  • Fig. 8a and 8b T-equivalent circuit diagrams.
  • FIG. 1 shows a first possible embodiment of an inventive ⁇ SEN secondary-side device with a downstream rectifier G, consisting of the bridge circuit of four diodes Dl to D4 with downstream smoothing capacitor C g.
  • a downstream rectifier G consisting of the bridge circuit of four diodes Dl to D4 with downstream smoothing capacitor C g.
  • the output current i a is dependent on the voltage induced in the coupling winding L, which can be adjusted by suitable choice of the number of turns w kop p of the coupling winding L kopp with knowledge of the magnetizing currents i mag .
  • the three magnetization windings L Ma g, i, L Ma g, 2 and L Ma g, 3 each form ⁇ together with the capacitances Ci, C 2 and C 3 separate parallel resonant circuits S lr S 2 and S 3rd
  • Each magnetization winding L Ma g, i, L Mag , 2 and L Mag , 3 is magnetically coupled via a separate coil core Ki, K 2 and K 3 with the coupling winding opp, which could also be referred to as Auskoppelwicklung in this case.
  • the coupling current i KO pp can be adjusted by the appropriate choice of the number of turns w kop p the coupling winding L KO pp decoupled from the magnetization currents i mag .
  • FIG. 2 shows a secondary device which is shown and described with respect to the compensation device C KO mp connected in series with the coupling winding L KOpp and which is used to compensate the
  • Leakage inductance or total inductance of the coupling winding L KOpp is used, so that advantageously compensated for at the leakage inductance or total inductance reactive voltage.
  • the secondary device otherwise operates in the same way as the device shown and described in FIG. Thus, reference is made to the description of the device of FIG.
  • FIG. 3 shows a first possible embodiment with a primary-side device according to the invention with upstream inverter W, which is formed by the four power semiconductors Ti to T 4 arranged in bridge connection.
  • the inverter W is advantageously fed from a constant current source i e .
  • the coupling winding ⁇ _ ⁇ ⁇ is connected to the inverter W with a number of turns w KO pp selected according to the requirements.
  • the coupling winding L KO pp and the magnetization windings L Mag / i, L Mag / 2 and L Mag / 3 are wound around the bobbin Ki and therefore magnetically coupled together in the form of a transformer.
  • FIG. 4 shows a primary device which is shown and described with respect to the compensation device C KO m P which is connected in series with the coupling winding L KO pp and which is used to compensate for the
  • Leakage inductance or total inductance of the coupling winding L KO pp is used, so that advantageously so that advantageously compensated for at the leakage inductance or total inductance reactive voltage is compensated.
  • the primary device otherwise operates in the same way as the device shown and described in FIG. Thus, reference is made to the description of the device of FIG. 3.
  • FIG. 5 shows a first possible arrangement of a pickup which has eight coil cores K c i to K c8 which are C-shaped in longitudinal cross-section.
  • Each coil core K ci is wound in each case only by a magnetization winding L Ma g, i to I-Mag, 8 in the region of its center web K CM .
  • the free legs K cs of the coil cores K c i to K c s laterally engage around the rectangularly formed coupling winding L KO pp, i, resulting in a fixed magnetic coupling between the magnetization windings L Ma g, i to L Ma g, 8 and the coupling winding L K opp, i yields.
  • the coil cores K c i to K c4 and the coil cores K c5 to K c8 . are each arranged in a row in the direction of RE parallel to each other, wherein the two rows are arranged parallel to each other in two columns SPi and SP 2 .
  • the two rows in the direction of RE are arranged offset from one another in such a way that the rows intermesh and thus builds the pickup transversely to the direction RE smaller.
  • FIG. 6 shows a second possible embodiment of a pickup, in which four rod-shaped coil cores K S i, K s2 , K S 3 and K S4 are arranged parallel to each other in a row.
  • Each of the coil cores K S i, K s2 , K S 3 and K S4 is in each case of only one magnetization winding L Ma g, i to L Ma g, 4 wound centrally, with right and left next to the magnetization windings L Mag / i to LMag, 4 each one in the longitudinal cross-section rectangular or oval coupling winding L KO pp, i and L KO pp, 2 is arranged, each embrace all the coil cores K S i, K s2 , K S 3 and K S4 .
  • FIG. 7 shows a third possible embodiment of a pickup in which a plurality of rod-shaped coil cores K S , K s2 , K S 3 and K S4 are likewise arranged parallel to one another, each coil core K S i, K s2 , K S 3 and K S4 of two eccentrically arranged magnetization windings L Mag , 1,3,5,7 and L Mag , 2, 4 , 6,8 is wrapped.
  • a longitudinally rectangular or oval coupling winding L KO pp, i is centered between the magnetization windings
  • LMag, i, 3,5,7 and L Ma g, 2, 4 , 6,8 arranged and surrounds all the coil cores K S i, K s2 , K S 3 and K S4 .
  • the T-equivalent circuit diagram shows the magnetization winding as a parallel resonant circuit (consisting of the capacitance C1 and the inductances LI and Lh ?? ag, i represents the resonant circuits Si, S 2 and S 3.
  • the main inductance L h should be as large as possible, so that a high voltage in the Auskoppelwicklung ⁇ _ ⁇ 0 ⁇ induced? occurs and the leakage inductance L2 remains as small as possible.
  • a capacitor L KO mp is coupled to the coupling-out winding L-Kopp i n series, which compensates the stray inductance L2 and ensures a dummy power-free load of the coupling-out winding ⁇ _ ⁇ 0 ⁇ -

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un appareil de côté secondaire d'un système de transfert d'énergie par induction comportant au moins une bobine de couplage (LKopp) et au moins une bobine d'aimantation (LMag,i), l'au moins une bobine de couplage (LKopp) et l'au moins une bobine d'aimantation (LMag,i) présentant un noyau magnétique commun (K, Ki) et la bobine d'aimantation (LMag,i) étant un composant d'un circuit résonnant (Si), notamment d'un circuit résonnant en série, seule la bobine de couplage (LKopp), dans le dispositif de côté secondaire, étant liée ou apte à être liée électriquement à une charge par l'intermédiaire d'un redresseur (G) et le circuit résonnant (Si) comprenant la bobine d'aimantation (LMag,i) n'étant lié ou apte à être lié ni avec une charge ni avec un redresseur (G) ou étant apte à être lié par l'intermédiaire d'un moyen de commutation. L'invention concerne en outre un dispositif de côté primaire d'un système de transfert d'énergie par induction comportant au moins une bobine de couplage et au moins une bobine d'aimantation.
PCT/EP2015/065682 2014-07-16 2015-07-09 Élément de détection de circuit résonnant parallèle comportant une bobine de découplage Ceased WO2016008794A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014109998.2 2014-07-16
DE102014109998.2A DE102014109998A1 (de) 2014-07-16 2014-07-16 Parallelschwingkreis Pickup mit Auskoppelwicklung

Publications (1)

Publication Number Publication Date
WO2016008794A1 true WO2016008794A1 (fr) 2016-01-21

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ID=53540752

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Application Number Title Priority Date Filing Date
PCT/EP2015/065682 Ceased WO2016008794A1 (fr) 2014-07-16 2015-07-09 Élément de détection de circuit résonnant parallèle comportant une bobine de découplage

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DE (1) DE102014109998A1 (fr)
WO (1) WO2016008794A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084699A (en) * 1989-05-26 1992-01-28 Trovan Limited Impedance matching coil assembly for an inductively coupled transponder
DE102008056930A1 (de) * 2007-11-19 2009-12-31 Brühn, Xenia Drahtlose Funkidentifikation
WO2011112795A1 (fr) * 2010-03-10 2011-09-15 Witricity Corporation Convertisseurs de transfert d'énergie sans fil
US20110304216A1 (en) * 2010-06-10 2011-12-15 Access Business Group International Llc Coil configurations for inductive power transer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236340C2 (de) * 1992-10-28 1994-11-10 Daimler Benz Ag Anordnung zur induktiven Übertragung von Energie
DE4446779C2 (de) * 1994-12-24 1996-12-19 Daimler Benz Ag Anordnung zur berührungslosen induktiven Übertragung elektrischer Leistung
DE102013212007B4 (de) * 2013-06-25 2025-03-27 Bayerische Motoren Werke Aktiengesellschaft Elektrische Versorgung eines Fahrzeugs im Stand

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084699A (en) * 1989-05-26 1992-01-28 Trovan Limited Impedance matching coil assembly for an inductively coupled transponder
DE102008056930A1 (de) * 2007-11-19 2009-12-31 Brühn, Xenia Drahtlose Funkidentifikation
WO2011112795A1 (fr) * 2010-03-10 2011-09-15 Witricity Corporation Convertisseurs de transfert d'énergie sans fil
US20110304216A1 (en) * 2010-06-10 2011-12-15 Access Business Group International Llc Coil configurations for inductive power transer

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