DE102006044704B4 - Method for feeding electrical power in equipment carrier - Google Patents

Method for feeding electrical power in equipment carrier Download PDF

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Publication number
DE102006044704B4
DE102006044704B4 DE102006044704A DE102006044704A DE102006044704B4 DE 102006044704 B4 DE102006044704 B4 DE 102006044704B4 DE 102006044704 A DE102006044704 A DE 102006044704A DE 102006044704 A DE102006044704 A DE 102006044704A DE 102006044704 B4 DE102006044704 B4 DE 102006044704B4
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rotation
axis
phase
phase coil
base part
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DE102006044704A1 (en
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DANNENMAIER, UDO, DE
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    • 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
    • H01F38/18—Rotary transformers
    • 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
    • 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
    • H02J50/40—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
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

Verfahren zur Übertragung großer elektrischer Leistungen von einem fest stehenden Basisteil (1) auf einen darauf um eine Drehachse (5) drehbar gelagerten Geräteträger (2); wobei den mehreren elektrischen Spulen (Se1; Se2; Se3; Se4; Se5; Se6) des Basisteils (1) radial gegenüberliegend mehrere elektrische Spulen (Sa1; Sa2; Sa3; Sa4; Sa5; Sa6) des Geräteträgers (2) angeordnet sind und somit konzentrisch zur Drehachse (5) angeordnete Spulenpaare (S1; S2; S3; S4; S5; S6) bilden; wobei mehrere Spulenpaare (S1 bis S3; S4 bis S6) derart angeordnet sind; dass sie je ein Drehstromspulenpaar bilden; wobei mittels jedes Drehstromspulenpaares Drehstrom übertragen wird; dadurch gekennzeichnet; dass die in Se6) des Basisteils (1) einspeisenden Drehströme derart geschaltet werden; dass sich je Drehstromspulenpaar (Se1, Sa1 bis Se3, Sa3) ein elektromagnetisches Wanderfeld in axialer Richtung der Drehachse (5) ausbildet und die Wanderfelder der Drehstromspulenpaare (Se4, Sa4 bis Se6, Sa6) derart...Method for the transmission of high electrical power from a fixed base part (1) to an equipment carrier (2) rotatably mounted thereon about a rotation axis (5); wherein the plurality of electrical coils (Se1; Se2; Se3; Se4; Se5; Se6) of the base part (1) are arranged radially opposite a plurality of electrical coils (Sa1; Sa2; Sa3; Sa4; Sa5; Sa6) of the device carrier (2) and thus forming coil pairs (S1; S2; S3; S4; S5; S6) arranged concentrically to the axis of rotation (5); wherein a plurality of coil pairs (S1 to S3; S4 to S6) are arranged in this way; that they each form a three-phase coil pair; whereby three-phase current is transmitted by means of each three-phase coil pair; characterized; that the three-phase currents feeding in Se6) of the base part (1) are switched in such a way; that for each three-phase coil pair (Se1, Sa1 to Se3, Sa3) an electromagnetic traveling field is formed in the axial direction of the axis of rotation (5) and that the traveling fields of the three-phase coil pairs (Se4, Sa4 to Se6, Sa6) so ...

Description

Die Patentanmeldung DE 10 2005 009 866 B4 wird hiermit ergänzt durch eine andere Anordnung der elektrischen Spulen und ein Verfahren zu berührungslosen Übertragung großer elektrischer Leistungen von einem fest stehenden Basisteil (1), im Weiteren Stator (1) genannt, auf einen darauf drehbar gelagerten Geräteträger (2). Ein wesentliches Konstruktionsmerkmal ist dabei; dass die Energieübertragung weder ein Drehmoment erzeugt noch Axialkräfte entfaltet; da solche Kräfte die Präzision der auf dem Geräteträger montierten Arbeitsmaschinen beeinflussen würde.The patent application DE 10 2005 009 866 B4 is hereby supplemented by another arrangement of the electric coils and a method for non-contact transmission of large electrical power from a fixed base part ( 1 ), furthermore stator ( 1 ), on a rotatably mounted on it equipment carrier ( 2 ). An essential design feature is; that the energy transfer neither generates a torque nor develops axial forces; since such forces would affect the precision of the machines mounted on the equipment rack.

Stand der TechnikState of the art

Aus der DE 28 27 386 A1 und der DE 10 14 209 B sind induktive Übertrager für Drehstrom bekannt. In der DE 10 14 209 B ist der Übertrager als Doppeldrehtransformator ausgeführt; dessen Ständerwicklungen derart geschaltet sind; dass zwei gegensinnig umlaufende Drehfelder erzeugt werden. Nachteilig ist bei dem Übertrager der DE 28 27 386 A1 die fehlende Kompensation der durch die Energieübertragung hervorgerufenen Axialkräfte. Der Übertrager der DE 10 14 209 B bildet zwar komplementäre Drehfelder aus; diese dienen jedoch dazu; unabhängig von der Drehzahl der Rotorwelle in der Sekundärwicklung des Rotors eine konstante Spannung einzuprägen; die nur von der vorgegebenen Primärspannung des Stators abhängt. Auch die Anordnung und Wicklung der Spulen entspricht dem einer Asynchronmaschine und unterscheidet sich somit von dem nachfolgend beschriebenen. Die Aufgabe der Nachanmeldung liegt darin den vorgenannten Nachteil zu überwinden. Das Bild 1 zeigt zunächst mechanisch den fest stehenden Stator (1) auf dem sich; über Lager (in Bild 1 Wälzlager) geführt; der drehbare Geräteträger (2) befindet. Die im Stator (1) untergebrachten äußeren Spulen mit der Kennzeichnung Se1 bis Se6 dienen zur primärseitigen Einspeisung der elektrischen Leistung. Die im drehbaren Geräteträger (2) befindlichen Spulen Sa1 bis Sa6 dienen dazu; die Leistung sekundärseitig auszukoppeln. Die Stromzuführung (3-1 und 3-2) zu den Statorspulen findet von außen statt; die sekundäre Stromabführung (4-1 und 4-2) wird durch die gezeigte Hohlwelle oder eine eigene Bohrung auf den Geräteträger geführt. In der Zeichnung nicht dargestellt; sondern als selbstverständlich angenommen; ist die Verwendung von magnetisch gut leitendem Material in den magnetischen Kreisen. Über je drei Spulenpaare; also S1 bis S3 und S4 bis S6 wird Drehstrom übertragen; durch die dabei unvermeidlichen elektromagnetischen Wanderfelder entstehen und damit Schubkräfte in axialer Richtung. Nun werden die einspeisenden Ströme (3-1 und 3-2) so geschaltet; dass sich die resultierenden Kräfte aufheben ohne dass der Leistungsfluss dadurch beeinflusst wird. Sekundärseitig werden die zusammengehörenden Spulen in Reihe oder parallel geschaltet.From the DE 28 27 386 A1 and the DE 10 14 209 B inductive transformers for three-phase current are known. In the DE 10 14 209 B the transformer is designed as a double rotary transformer; the stator windings are connected in such a way; that two counter rotating rotating fields are generated. The disadvantage of the transformer DE 28 27 386 A1 the missing compensation of the axial forces caused by the energy transfer. The transformer of DE 10 14 209 B Although forms complementary rotating fields; however, these serve to do so; regardless of the speed of the rotor shaft in the secondary winding of the rotor to impress a constant voltage; which depends only on the predetermined primary voltage of the stator. The arrangement and winding of the coils corresponds to that of an asynchronous machine and thus differs from that described below. The object of the subsequent application is to overcome the aforementioned disadvantage. The picture 1 shows mechanically the fixed stator ( 1 ) on the itself; guided over bearings (in picture 1 rolling bearings); the rotatable device carrier ( 2 ) is located. The in the stator ( 1 ) accommodated outer coils with the marking Se1 to Se6 are used for primary supply of electrical power. The in the rotatable equipment carrier ( 2 ) located coils Sa1 to Sa6 serve to; decoupling the power on the secondary side. The power supply ( 3-1 and 3-2 ) to the stator coils takes place from the outside; the secondary current drain ( 4-1 and 4-2 ) is guided by the hollow shaft shown or a separate hole on the equipment rack. Not shown in the drawing; but taken for granted; is the use of magnetically good conducting material in the magnetic circuits. About three pairs of coils; ie S1 to S3 and S4 to S6, three-phase current is transmitted; caused by the inevitable electromagnetic traveling fields and thus shear forces in the axial direction. Now the feeding streams ( 3-1 and 3-2 ) so switched; that the resulting forces cancel each other out without affecting the power flow. On the secondary side, the associated coils are connected in series or in parallel.

Erklärendes BeispielExplanatory example

Es seien an die Spulen Se1; Se2; Se3 die einspeisenden Außenleiter L1; L2; L3 (Begriffe nach VDE 0100 und IEV) angeschlossen. Dies führt zu einem Wanderfeld nach unten; und damit verbunden; Kräfte in axiale Richtung nach unten. Schließt man nun an die Spulen Se4; Se5; Se6 die einspeisenden Außenleiter in der Reihenfolge L3; L2; L1 an; so erhält man ein komplementäres Wanderfeld nach oben und damit die eiwünschten kompensierenden Kräfte. Zur Auskopplung der elektrischen Leistung würden in diesem Beispiel die Spulen Sa1 und Sa6, Sa2 und Sa5, Sa3 und Sa4 zusammengeschlossen; wobei entweder Reihenschaltung oder Parallelschaltung gleichermaßen möglich ist. Bei diesem Beispiel wurde vorausgesetzt; dass die Spulenpaare baugleich sind. Andere Kombinationen sind ebenso verwendbar; wie eine andere Anzahl von Spulenpaaren. Das kann konstruktive Vorteile bieten; bedarf aber eines höheren Aufwandes bei der entsprechenden elektrischen Verschaltung.Let the coils Se1; Se 2; Se3 the feeding outer conductor L1; L2; L3 (terms according to VDE 0100 and IEV) connected. This leads to a traveling field down; and connected with it; Forces downwards in axial direction. If you now close the coils Se4; se5; Se6 the feeding outer conductors in the order L3; L2; L1 on; thus one obtains a complementary traveling field upwards and thus the desired compensating forces. To decouple the electrical power would in this example, the coils Sa1 and Sa6, Sa2 and Sa5, Sa3 and Sa4 joined together; where either series connection or parallel connection is equally possible. This example was assumed; that the coil pairs are identical. Other combinations are equally usable; like another number of coil pairs. That can offer constructive advantages; but requires a higher effort in the corresponding electrical interconnection.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
feststehender Stator (Basisteil)fixed stator (base part)
22
drehbarer Geräteträgerrotatable device carrier
Sek Se k
Spulenkörper primär, k = 1...6Bobbin primary, k = 1 ... 6
3-1, 3-23-1, 3-2
Energieeinspeisungpower feed
Sak Sa k
Spulenkörper sekundär, k = 1...6Bobbin secondary, k = 1 ... 6
4-1, 4-24-1, 4-2
Energieauskopplungenergy extraction
55
Drehachseaxis of rotation
66
Lagercamp

Claims (1)

Verfahren zur Übertragung großer elektrischer Leistungen von einem fest stehenden Basisteil (1) auf einen darauf um eine Drehachse (5) drehbar gelagerten Geräteträger (2); wobei den mehreren elektrischen Spulen (Se1; Se2; Se3; Se4; Se5; Se6) des Basisteils (1) radial gegenüberliegend mehrere elektrische Spulen (Sa1; Sa2; Sa3; Sa4; Sa5; Sa6) des Geräteträgers (2) angeordnet sind und somit konzentrisch zur Drehachse (5) angeordnete Spulenpaare (S1; S2; S3; S4; S5; S6) bilden; wobei mehrere Spulenpaare (S1 bis S3; S4 bis S6) derart angeordnet sind; dass sie je ein Drehstromspulenpaar bilden; wobei mittels jedes Drehstromspulenpaares Drehstrom übertragen wird; dadurch gekennzeichnet; dass die in die elektrischen Spulen (Se1; Se2; Se3; Se4; Se5; Se6) des Basisteils (1) einspeisenden Drehströme derart geschaltet werden; dass sich je Drehstromspulenpaar (Se1, Sa1 bis Se3, Sa3) ein elektromagnetisches Wanderfeld in axialer Richtung der Drehachse (5) ausbildet und die Wanderfelder der Drehstromspulenpaare (Se4, Sa4 bis Se6, Sa6) derart komplementär sind; dass sich die in axialer Richtung der Drehachse (5) entstehenden Kräfte ohne Beeinflussung des von den Drehstromspulenpaaren übertragenen elektrischen Leistungsflusses kompensieren.Method for transmitting large electrical powers from a fixed base part ( 1 ) on one about a rotation axis ( 5 ) rotatably mounted equipment carrier ( 2 ); wherein the plurality of electrical coils (Se1, Se2, Se3, Se4, Se5, Se6) of the base part ( 1 ) radially opposite a plurality of electrical coils (Sa1, Sa2, Sa3, Sa4, Sa5, Sa6) of the device carrier ( 2 ) are arranged and thus concentric to the axis of rotation ( 5 ) arranged coil pairs (S1, S2, S3, S4, S5, S6) form; wherein a plurality of coil pairs (S1 to S3, S4 to S6) are arranged in such a way; that they each form a three-phase coil pair; wherein three-phase current is transmitted by means of each three-phase coil pair; characterized that in the electric coils (Se1, Se2, Se3, Se4, Se5, Se6) of the base part ( 1 ) feeding three-phase currents are switched such; that per three-phase coil pair (Se1, Sa1 to Se3, Sa3) a electromagnetic traveling field in the axial direction of the axis of rotation ( 5 ) and the traveling fields of the three-phase coil pairs (Se4, Sa4 to Se6, Sa6) are so complementary; that in the axial direction of the axis of rotation ( 5 ) compensate forces without affecting the transmitted from the three-phase coil electrical power flow.
DE102006044704A 2005-03-04 2006-08-30 Method for feeding electrical power in equipment carrier Expired - Fee Related DE102006044704B4 (en)

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DE102005009866A DE102005009866B4 (en) 2005-03-04 2005-03-04 Device for feeding electrical power in equipment carrier
DE102006044704A DE102006044704B4 (en) 2005-03-04 2006-08-30 Method for feeding electrical power in equipment carrier

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104600874B (en) * 2015-01-30 2017-01-25 哈尔滨工业大学 Three-layer three-phase symmetry type coil applied to wireless electric energy transmission system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8269590B2 (en) 2008-04-14 2012-09-18 Aker Engineering & Technology As Rotary transformer
GB0900073D0 (en) * 2009-01-06 2009-02-11 Rolls Royce Plc A subsea rotary mount for a tidal-stream turbine
JP5615913B2 (en) * 2009-06-11 2014-10-29 コーニンクレッカ フィリップス エヌ ヴェ Non-contact power chain
DE102011052381B4 (en) * 2011-08-03 2013-04-18 Rittal Gmbh & Co. Kg Busbar adapter with a mounting rail for mounting a switching device
DE102012007871B3 (en) * 2011-08-05 2012-08-09 Udo Dannenmaier Method for transmission of electric power from stator to rotatable device carrier for e.g. drilling machine, involves constructing parallel structure for feeding power during occurrence of interfering force such that force is compensated

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014209B (en) * 1955-02-14 1957-08-22 Elmeg Inductive transmitter
DE2827386A1 (en) * 1978-06-22 1980-01-10 Garbe Lahmeyer & Co Ag ARRANGEMENT FOR CONTACTLESS TRANSMISSION OF ELECTRIC AC POWER TO A MACHINE PART
DE10203651A1 (en) * 2002-01-30 2003-08-14 Aloys Wobben exchangers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014209B (en) * 1955-02-14 1957-08-22 Elmeg Inductive transmitter
DE2827386A1 (en) * 1978-06-22 1980-01-10 Garbe Lahmeyer & Co Ag ARRANGEMENT FOR CONTACTLESS TRANSMISSION OF ELECTRIC AC POWER TO A MACHINE PART
DE10203651A1 (en) * 2002-01-30 2003-08-14 Aloys Wobben exchangers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104600874B (en) * 2015-01-30 2017-01-25 哈尔滨工业大学 Three-layer three-phase symmetry type coil applied to wireless electric energy transmission system

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