DE102007050496A1 - Generator for wind energy system, has stator with winding, which steps into reciprocal effect with magnet of rotor such that voltage is induced in winding during rotation of rotor, and another rotor with magnet - Google Patents
Generator for wind energy system, has stator with winding, which steps into reciprocal effect with magnet of rotor such that voltage is induced in winding during rotation of rotor, and another rotor with magnet Download PDFInfo
- Publication number
- DE102007050496A1 DE102007050496A1 DE102007050496A DE102007050496A DE102007050496A1 DE 102007050496 A1 DE102007050496 A1 DE 102007050496A1 DE 102007050496 A DE102007050496 A DE 102007050496A DE 102007050496 A DE102007050496 A DE 102007050496A DE 102007050496 A1 DE102007050496 A1 DE 102007050496A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- magnet
- generator
- shaft
- rotors
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
- H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
Abstract
Description
Die Erfindung offenbart einen Generator, insbesondere für Windenergieanlagen, aufweisend einen ersten Rotor, an bzw. in dem wenigstens ein Magnet angebracht ist, wobei der Rotor an eine Welle gekoppelt ist, welche im Wesentlichen um eine Rotationsachse rotiert, wenigstens einen Stator, welcher wenigstens eine Leiterwicklung aufweist, welche mit dem Magneten des Rotors derart in Wechselwirkung tritt, dass bei Rotation des Rotors eine Spannung in der Leiterwicklung induziert wird, wobei der Generator wenigstens einen zweiten Rotor aufweist.The Invention discloses a generator, especially for wind turbines, comprising a first rotor, on or in the at least one magnet is attached, wherein the rotor is coupled to a shaft, which essentially rotated about an axis of rotation, at least one Stator, which has at least one conductor winding, which interacts with the magnet of the rotor in such a way that upon rotation of the rotor induces a voltage in the conductor winding is, wherein the generator has at least one second rotor.
Moderne Windkraftanlagen können Rotoren, welche mit Rotorblättern bestückt sind, mit einem Durchmesser von mehr als 100 m, Maschinenhäuser mit Durchmessern von über 12 m und Gewichten von über 200 Tonnen aufweisen. Insbesondere die Ausmaße und Gewichte der Maschinenhäuser stellen enorme Anforderungen an die Kräne, welche die Lasten in die entsprechenden Höhen transportieren. Weiterhin tragen, insbesondere bei Windkraftanlagen mit mehr als 1 MW Leistung, die Getriebe und Generatoren wesentlich zu der Masse und zum Ausmaß des Maschinenhauses bei.modern Wind turbines can Rotors, which with rotor blades stocked are, with a diameter of more than 100 m, nacelles with Diameters of over 12 m and weights of over 200 tons. In particular, the dimensions and weights of the nacelles make enormous Requirements for the cranes, which transport the loads to the appropriate heights. Farther especially wind turbines with more than 1 MW output, the gearboxes and generators are essential to the mass and extent of the engine house at.
Aufgabe der Erfindung ist es, einen Generator derart auszugestalten, dass die Ausmaße des Generators reduzierbar im Vergleich zu Generatoren gleicher Leistungsklassen sind.task The invention is to design a generator such that the dimensions of the generator reducible compared to generators same Are performance classes.
Die Aufgabe wird gelöst durch einen Generator, insbesondere für Windenergieanlagen, aufweisend einen ersten Rotor, an bzw. in dem wenigstens ein Magnet angebracht ist, wobei der Rotor an eine Welle gekoppelt ist, welche im Wesentlichen um eine Rotationsachse rotiert, wenigstens einen Stator, welcher wenigstens eine Leiterwicklung aufweist, welche mit dem Magneten des Rotors derart in Wechselwirkung tritt, dass bei Rotation des Rotors eine Spannung in der Leiterwicklung induziert wird, wobei der Generator wenigstens einen zweiten Rotor aufweist.The Task is solved by a generator, in particular for wind turbines, comprising a first rotor, attached to or in the at least one magnet is, wherein the rotor is coupled to a shaft, which is substantially rotates about an axis of rotation, at least one stator, which has at least one conductor winding, which with the magnet of the rotor interacts in such a way that during rotation of the Rotor, a voltage is induced in the conductor winding, wherein the generator has at least one second rotor.
Durch die erfindungsgemäße kompakte Bauweise des Generators kann ein zugehöriges Maschinenhaus mit geringeren Ausmaßen ausgestaltet werden, als es im Vergleich zu üblichen Generatoren der gleichen Leistungsklasse möglich wäre.By the compact invention Construction of the generator can be an associated nacelle with lower dimensions be designed as compared to conventional generators of the same Performance class possible would.
Der Rotor des Generators kann mit Permanentmagneten und/oder mit Elektromagneten ausgestaltet sein. Weiterhin kann der Rotor aus Verbundwerkstoffen, insbesondere aus GFK, ausgestaltet sein. Die Magnete können dabei in den Rotor eingebracht bzw. auf dem Rotor angebracht sein.Of the Rotor of the generator can be equipped with permanent magnets and / or with electromagnets be designed. Furthermore, the rotor can be made of composite materials, in particular made of GRP, be configured. The magnets can do this be introduced into the rotor or mounted on the rotor.
Weiterhin kann der Rotor an die Welle angeflanscht sein, wobei dabei eine drehfeste Verbindung ausgeführt sein kann. Unter angeflanschte Verbindung ist in der gesamten Beschreibung eine lösbare und wieder arretierbare Verbindung zu verstehen.Farther the rotor can be flanged to the shaft, whereby a rotatable connection executed can be. Under flanged connection is throughout the description a detachable and to understand again lockable connection.
Der Stator, auch Ständer genannt, umfasst Leiterwicklungen, welche auch zu Leiterspulen zusammengeschaltet werden können. Durch die Wechselwirkung mit den Magneten im Rotor bei Rotation der Welle wird eine Spannung in den Leiterspulen induziert, welche in das Stromnetz einspeisbar ist. Das Einspeisen kann mittels Konverter und/oder Transformator erfolgen.Of the Stator, also stand called, comprises conductor windings, which also interconnected to conductor coils can be. Due to the interaction with the magnets in the rotor during rotation of the Wave is induced a voltage in the conductor coils, which in the power grid can be fed in. Feeding can be done by means of a converter and / or transformer.
In einer bevorzugten Ausführungsform kann der Generator zusätzlich zum zweiten Rotor weitere Rotoren aufweisen. Dadurch kann der Generator noch kompakter ausgestaltet sein.In a preferred embodiment can the generator in addition have further rotors for the second rotor. This allows the generator yet be made more compact.
In einer ganz besonders bevorzugten Ausgestaltungsform können die Magnete des zweiten Rotors bzw. der weiteren Rotoren einen anderen Radialabstand zur Rotationsachse der Welle aufweisen als der erste Rotor. Insbesondere können den Magneten der zweiten und weiteren Rotoren jeweils oberhalb und/ oder unterhalb Leiterwicklungen so zugeordnet sein, so dass diese bei Rotation der Rotoren so in Wechselwirkung mit den Magneten stehen, dass bei Rotation der Rotoren Spannungen in den Leiterwicklungen induziert werden.In In a very particularly preferred embodiment, the Magnets of the second rotor and the other rotors another Radial distance to the axis of rotation of the shaft have as the first Rotor. In particular, you can the magnets of the second and further rotors above and / or or be assigned below conductor windings so that these upon rotation of the rotors so interact with the magnets that induced during rotation of the rotors voltages in the conductor windings become.
In einer besonders bevorzugten Ausführungsform können die Magnete der weiteren Rotoren einen anderen Radialabstand zur Rotationsachse der Welle aufweisen als der erste und zweite Rotor. Somit können mehrere Rotoren mit verschiedenen Radialabständen zur Welle angebracht sein, so dass eine wesentlich kompaktere Bauform des Generators, bei vergleichbarer Leistungsklasse, realisiert werden kann.In a particularly preferred embodiment can the magnets of the other rotors a different radial distance to Have axis of rotation of the shaft as the first and second rotor. Consequently can several rotors with different radial distances to the shaft, so that a much more compact design of the generator, at comparable Performance class, can be realized.
In einer weiteren Ausführungsform können die Rotoren separat an die Welle gekoppelt werden. Somit können die Rotoren jeweils einzeln in den Generator eingebracht und entsprechend an die Welle montiert werden.In a further embodiment can they Rotors are coupled separately to the shaft. Thus, the Each rotor is individually introduced into the generator and accordingly be mounted on the shaft.
In einer speziellen Ausgestaltungsform können wenigstens Teile der Rotoren einen Gesamtrotor bilden. Dies kann durch die Ausgestaltung eines Rotors mit jeweiligen Abzweigungen für die Magnete des Rotors erfolgen. Auch kann dies durch mechanische Kopplung der Rotoren aneinander erfolgen, wodurch eine drehfeste Verbindung mit den gekoppelten Rotoren entsteht, wobei die gekoppelten Rotoren gemeinsam über die Welle rotierbar sind.In a special embodiment, at least parts of the rotors to form an overall rotor. This can be achieved by designing a Rotor take place with respective branches for the magnets of the rotor. This can also be achieved by mechanical coupling of the rotors to each other done, creating a rotationally fixed connection with the coupled rotors arises, with the coupled rotors together over the Shaft are rotatable.
In einer ganz besonders bevorzugten Ausgestaltungsform können der zweite Rotor bzw. die weiteren Rotoren mechanisch mittels Schaltung an die Welle koppelbar sein. Somit kann die Leistung des Generators mittels zuschalten oder abschalten verändert werden. Die Schaltung kann so ausgestaltet sein, dass abhängig von einem Sensorsignal oder einem gesetzten Signal bzw. Setzparameter eine mechanische Arretierung, beispielsweise mittel Bolzen oder Klemme, den Rotor an die Welle anflanscht.In a very particularly preferred embodiment, the second rotor or the other rotors can be mechanically coupled to the shaft by means of a circuit. Thus, the power of the generator by means of switch on or off ver to be changed. The circuit can be designed such that depending on a sensor signal or a set signal or setting parameters, a mechanical locking, for example by means of a bolt or clamp, flanges the rotor to the shaft.
In einer weiteren Ausgestaltungsform kann die Welle Bestandteil einer Abtriebsstufe eines Windkraftgetriebes bzw. an die Abtriebsstufe angekoppelt sein. Ein solches Windkraftgetriebe übersetzt das Drehmoment bzw. die eingehende Drehzahl in ein Drehmoment bzw. eine ausgehende Drehzahl der Welle des Generators.In a further embodiment, the shaft can be part of a Output stage of a wind power transmission or to the output stage be coupled. Such a wind turbine gear translates the torque or the incoming speed into a torque or an outgoing speed the shaft of the generator.
Insbesondere kann der erfinderische Generator auch bei getriebelosen Windkraftanlagen eingesetzt werden, wobei die Welle so ausgestaltet ist, dass die die Rotorblätter aufnehmende Nabe an die Welle gekoppelt ist.Especially can the inventive generator even with gearless wind turbines be used, wherein the shaft is designed so that the the rotor blades receiving hub is coupled to the shaft.
Im Weiteren wird ein Ausführungsbeispiel anhand der Figuren erläutert. Dabei zeigtin the Further, an embodiment is based of the figures explained. It shows
In
dem in
Das
Getriebe wandelt die Drehzahl der die Rotorblätter fassenden Nabe (nicht
dargestellt), welche durch den Eingriff des Windes in die Rotorblätter durch
Rotation der Nabe bedingt ist, in eine Drehzahl der Abtriebsstufe
(nicht dargestellt), welche von der Abtriebsstufe an die Welle
An
die Welle
In
Durch
die induzierten Spannungen in den Leiterwicklungen werden die Spulen
In
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007050496A DE102007050496A1 (en) | 2007-10-19 | 2007-10-19 | Generator for wind energy system, has stator with winding, which steps into reciprocal effect with magnet of rotor such that voltage is induced in winding during rotation of rotor, and another rotor with magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007050496A DE102007050496A1 (en) | 2007-10-19 | 2007-10-19 | Generator for wind energy system, has stator with winding, which steps into reciprocal effect with magnet of rotor such that voltage is induced in winding during rotation of rotor, and another rotor with magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007050496A1 true DE102007050496A1 (en) | 2009-04-23 |
Family
ID=40458967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007050496A Ceased DE102007050496A1 (en) | 2007-10-19 | 2007-10-19 | Generator for wind energy system, has stator with winding, which steps into reciprocal effect with magnet of rotor such that voltage is induced in winding during rotation of rotor, and another rotor with magnet |
Country Status (1)
Country | Link |
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DE (1) | DE102007050496A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011012454A1 (en) | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine for use as synchronous generator for wind energy plant, has inner stator connected with carrier, and rotor supported on carrier via double-sided bearing and rotated relative to inner and outer stators |
DE102011012453A1 (en) | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine e.g. generator of wind turbine, has stator that is composed of inner and outer stators to which cooling water is supplied through cylindrical pipes |
CN103368322A (en) * | 2012-04-03 | 2013-10-23 | 波音公司 | Nested-rotor open-core flywheel |
CN107070145A (en) * | 2017-04-13 | 2017-08-18 | 王坤义 | The shaftless multipole suspension magnetic generator of superconduction |
WO2018029552A1 (en) * | 2016-08-12 | 2018-02-15 | The Trustees For The Time Being Of The Kmn Fulfilment Trust | An electric generator having a central magnetic shaft |
RU181317U1 (en) * | 2018-03-21 | 2018-07-10 | Дзе Трастиз Фор Дзе Тайм Биинг Оф Дзе Кмн Фулфилмент Траст | ELECTRIC GENERATOR HAVING A CENTRAL MAGNETIC SHAFT |
EP3477820A1 (en) | 2017-10-26 | 2019-05-01 | Jan-Dirk Reimers | Electrical ring machine for inverter operation |
EP3503358A1 (en) | 2017-12-21 | 2019-06-26 | Jan-Dirk Reimers | Construction kit for an electric ring machine |
WO2021245568A1 (en) * | 2020-06-03 | 2021-12-09 | Francesco Ricciardi | Permanent magnet electric machine with multiple coaxial rotors |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10310777A1 (en) * | 2003-03-12 | 2004-09-23 | Wittur Ag | Electrical machine for direct drive of cable winch disc for elevator has coaxial pairs of electrical winding layers and cooperating permanent magnet layers |
-
2007
- 2007-10-19 DE DE102007050496A patent/DE102007050496A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10310777A1 (en) * | 2003-03-12 | 2004-09-23 | Wittur Ag | Electrical machine for direct drive of cable winch disc for elevator has coaxial pairs of electrical winding layers and cooperating permanent magnet layers |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011012454A1 (en) | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine for use as synchronous generator for wind energy plant, has inner stator connected with carrier, and rotor supported on carrier via double-sided bearing and rotated relative to inner and outer stators |
DE102011012453A1 (en) | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine e.g. generator of wind turbine, has stator that is composed of inner and outer stators to which cooling water is supplied through cylindrical pipes |
CN103368322A (en) * | 2012-04-03 | 2013-10-23 | 波音公司 | Nested-rotor open-core flywheel |
WO2018029552A1 (en) * | 2016-08-12 | 2018-02-15 | The Trustees For The Time Being Of The Kmn Fulfilment Trust | An electric generator having a central magnetic shaft |
CN107070145A (en) * | 2017-04-13 | 2017-08-18 | 王坤义 | The shaftless multipole suspension magnetic generator of superconduction |
EP3477820A1 (en) | 2017-10-26 | 2019-05-01 | Jan-Dirk Reimers | Electrical ring machine for inverter operation |
WO2019081066A2 (en) | 2017-10-26 | 2019-05-02 | Reimers Jan Dirk | Annular electric machine for operating a 4-quadrant converter |
EP3503358A1 (en) | 2017-12-21 | 2019-06-26 | Jan-Dirk Reimers | Construction kit for an electric ring machine |
RU181317U1 (en) * | 2018-03-21 | 2018-07-10 | Дзе Трастиз Фор Дзе Тайм Биинг Оф Дзе Кмн Фулфилмент Траст | ELECTRIC GENERATOR HAVING A CENTRAL MAGNETIC SHAFT |
WO2021245568A1 (en) * | 2020-06-03 | 2021-12-09 | Francesco Ricciardi | Permanent magnet electric machine with multiple coaxial rotors |
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