DE4402184A1 - Horizontal-axis wind power plant multi-pole sync generator - Google Patents

Horizontal-axis wind power plant multi-pole sync generator

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Publication number
DE4402184A1
DE4402184A1 DE4402184A DE4402184A DE4402184A1 DE 4402184 A1 DE4402184 A1 DE 4402184A1 DE 4402184 A DE4402184 A DE 4402184A DE 4402184 A DE4402184 A DE 4402184A DE 4402184 A1 DE4402184 A1 DE 4402184A1
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DE
Germany
Prior art keywords
rotor
generator
stator
pole synchronous
synchronous generator
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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.)
Granted
Application number
DE4402184A
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German (de)
Other versions
DE4402184C2 (en
Inventor
Friedrich Prof Dr Ing Klinger
Thomas Dipl Ing Schneider
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Vensys Energy Ag 66539 Neunkirchen De
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Individual
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Priority to DE4402184A priority Critical patent/DE4402184C2/en
Publication of DE4402184A1 publication Critical patent/DE4402184A1/en
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Publication of DE4402184C2 publication Critical patent/DE4402184C2/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50—Maintenance or repair
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7064—Application in combination with an electrical generator of the alternating current (A.C.) type
    • F05B2220/70642—Application in combination with an electrical generator of the alternating current (A.C.) type of the synchronous type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7066—Application in combination with an electrical generator via a direct connection, i.e. a gearless transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Abstract

The multiple pole synchronous generator is for gear-free horizontal axis wind power systems. The generator acts as the inner or outer rotor and includes a stator (8) and a rotor (11). The stator (8) and rotor (11) are connected to each other by a fly bearing (15). The bearing (15) assists the rotary movement of the rotor and also picks up externally applied forces and moments. Preferably the generator (1) includes, as integral components, a cooler (12), a seal (5), a brake system (6), a clamp box (7), signal transmission interfaces and bearing lubrication.

Description

Die Erfindung betrifft einen Vielpol-Synchrongenerator für getriebelose Horizontalachsen-Windkraftanlagen der im Patent­ anspruch 1 angegebenen Art mit Nennleistungen bis zu mehre­ ren Megawatt.The invention relates to a multi-pole synchronous generator for gearless horizontal axis wind turbines of the patent Claim 1 specified type with nominal powers up to several megawatts.

Stand der Technik sind Konzepte für getriebelose Windkraft­ anlagen mit permanentmagneterregtem Synchrongenerator, wie sie in Vortrag L4 der "European Community Wind Energy Conference" 1993 in Travemünde mit dem Titel "Multipole, permanent magnet generator studies and planed prototypes" oder in der Fachzeitschrift Windenergie Aktuell, Heft 7/1992 in dem Bericht "Konzepte für getriebelose WKA" vorgestellt wurden. Ausgeführt ist in der obengenannten Leistungsklasse und Bauart bisher eine Anlage mit Synchrongenerator und Erregerwicklung der Firma ENERCON, siehe Produktbeschreibung zur ENERCON E40, mit einer Nennleistung von 500 kW.State of the art are concepts for gearless wind power systems with permanent magnet-excited synchronous generator, such as she in lecture L4 of the "European Community Wind Energy Conference "1993 in Travemünde with the title" Multipole, permanent magnet generator studies and planned prototypes " or in the journal Windenergie Aktuell, issue 7/1992 presented in the report "Concepts for gearless wind turbines" were. Is carried out in the above performance class and design so far a system with synchronous generator and Excitation winding from ENERCON, see product description to the ENERCON E40, with a nominal output of 500 kW.

Die heute existierenden Anlagen und Konzepte haben folgende Nachteile: So sind die Generatoren entweder in herkömmlicher Bauweise mit mehrfach geteiltem Gehäuse ausgeführt, wobei der Rotor meist auf einer durch Umlaufbiegung belasteten Welle sitzt, was für die Einhaltung des Luftspaltes ein zu­ sätzliches Problem darstellt, oder der Generator ist einfach geteilt in Stator und Rotor, wobei jedes dieser Teile unter­ schiedlichen Baugruppen der Windkraftanlage zugeordnet ist. Insbesondere ist der Rotor an der Nabe der Windkraftanlage und der Stator an den Turmkopf bzw. die Achse der Windkraft­ anlage angeflanscht. In der zuletzt genannten Bauform kann der Generator nur bei einer bestimmten Windkraftanlage in einer Sonderanfertigung verwendet werden.The systems and concepts that exist today have the following Disadvantages: The generators are either conventional Design with multiple divided housing, whereby the rotor is usually loaded on a circular bend Wave sits, which is a requirement for compliance with the air gap problem or the generator is simple divided into stator and rotor, with each of these parts under different components of the wind turbine is assigned. In particular, the rotor is on the hub of the wind turbine and the stator to the tower head or the axis of the wind power system flanged. In the latter design can the generator only in a particular wind turbine a custom-made product.

Die bekannte Situation ist aus der Sicht der Generatorher­ steller und der Hersteller der Windkraftanlagen in mehr­ facher Hinsicht unbefriedigend. So kann ein bekannter Genera­ tor der vorgenannten, letztgenannten Bauweise nicht fertig montiert und funktionsgeprüft ausgeliefert werden. Der Generatorhersteller muß Einfluß nehmen auf die Konstruktion des Windkraftanlagenherstellers, da die Einhaltung des Luft­ spaltes unbedingt gewährleistet sein muß. Der Generator muß schließlich in seiner Bauform an die von jedem Windkraft­ anlagenhersteller gewünschte Einbausituation angepaßt wer den. Bei den zu erwartenden relativ geringen Stückzahlen ist diese Bauart für einen Generatorhersteller unwirtschaftlich.The known situation is from the generator's point of view Steller and the manufacturer of the wind turbines in more  technically unsatisfactory. So a well-known genera gate of the aforementioned, latter construction not finished assembled and function tested. Of the The generator manufacturer must influence the design of the wind turbine manufacturer, since compliance with the air gap must be guaranteed. The generator must finally in its design to that of any wind power plant manufacturer who adapted the desired installation situation the. Given the relatively small numbers to be expected this design is uneconomical for a generator manufacturer.

Aufbauend auf dem vorgenannten Stand der Technik ist es Auf­ gabe der Erfindung, einen Vielpol-Synchrongenerator der ein­ gangs genannten Art zu schaffen, der sehr einfach aufgebaut und zuverlässig im Betrieb ist und insbesondere in unter­ schiedlich konzipierte Windkraftanlagen problemlos eingebaut werden kann.Building on the aforementioned prior art, it is up gave the invention, a multi-pole synchronous generator gangs mentioned to create the very simple structure and is reliable in operation and especially in under differently designed wind turbines easily installed can be.

Gelöst wird die der Erfindung zugrundeliegende Aufgabe durch die im Patentanspruch 1 angegebenen Merkmale.The object on which the invention is based is achieved by the features specified in claim 1.

Vorteilhaft weitergebildet wird der Erfindungsgegenstand durch die Merkmale der Unteransprüche 2 bis 6.The subject of the invention is advantageously further developed by the features of subclaims 2 to 6.

Wesen der Erfindung ist die Zusammenfassung der bisher ge­ trennten Komponenten Generator und Nabenlagerung zu einer einzigen Baugruppe, die im Gegensatz zu herkömmlichen Genera­ torkonzepten vorzugsweise aus lediglich zwei tragenden Bau­ teilen besteht. Die Anordnung ermöglicht den Einbau der Generator-Baugruppe in unterschiedliche Anlagenkonzepte, z. B. in Anlagen mit Blattverstellung (Pitch-geregelt) und Anlagen mit Leistungsbegrenzung durch Strömungsabriß (Stall-geregelt). Die Baugruppe stellt somit keine anlagenspezifi­ sche Sonderbauform dar und kann von verschiedenen Herstel­ lern von Windkraftanlagen als Zukaufteil geordert werden. The essence of the invention is the summary of the previously ge separated components generator and hub bearing into one single assembly that, unlike conventional genera door concepts preferably from only two load-bearing structures sharing exists. The arrangement enables the installation of the Generator assembly in different system concepts, e.g. B. in systems with blade adjustment (pitch-controlled) and Systems with capacity limitation due to stall (Stable regulated). The module therefore does not represent any plant-specific special design and can be from different manufacturers learn wind turbines as a purchased part.  

Aufgrund der Bauausführung kann auf eine zusätzliche Lage­ rung der Nabe mit den Rotorblättern verzichtet werden.Due to the construction, there is an additional location tion of the hub with the rotor blades.

Die Generator-Baugruppe weist vorzugsweise integrierte wichtige Baukomponenten auf wie Kühlung, Generatordichtung, Bremse und/oder Feststellvorrichtung, Klemmenkasten sowie Schnittstellen zur Signalübertragung und Lagerschmierung.The generator assembly preferably has integrated ones important components such as cooling, generator seal, Brake and / or locking device, terminal box and Interfaces for signal transmission and bearing lubrication.

Insbesondere durch die O-Anordnung der Lagerung mit kleinem Lagerabstand und verformungssteifem Stator und Rotor wird die Einhaltung des Generatorluftspaltes unter allen Belastungszuständen gewährleistet.In particular through the O-arrangement of the bearing with a small one Bearing distance and rigid stator and rotor compliance with the generator air gap among all Guaranteed load conditions.

Der Synchrongenerator besitzt vorzugsweise einen zentralen Durchgang, so daß die Nabe vom Innern des Turmkopfs aus im eingebauten Zustand des Generators in einer Windkraftanlage zugänglich ist.The synchronous generator preferably has a central one Passage, so that the hub from the inside of the tower head in installed condition of the generator in a wind turbine is accessible.

Zur Integration in eine Windkraftanlage sind insbesondere Anschlußflansche zur Nabe und zum Turmkopf der Windkraft­ anlage vorgesehen, die eine problemlose, einfache und siche­ re Montage an einer Windkraftanlage vor Ort ermöglichen.In particular, for integration into a wind turbine Connection flanges to the hub and the tower head of the wind power plant provided that is a problem-free, simple and safe Enable re-installation on a wind turbine on site.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispie­ len unter Bezugnahme auf die beigefügte Zeichnung mit Bezug auf den derzeitigen Stand der Technik näher beschrieben, es zeigenThe invention is described below with reference to exemplary embodiments len with reference to the accompanying drawing with reference to the current state of the art described it demonstrate

Fig. 1 einen Vielpol-Synchrongenerator in eingebautem Zu­ stand in einer Windkraftanlage in einem schemati­ schen Vertikalschnitt, Fig. 1 is a multi-pole synchronous generator in the installed to stand in a wind turbine in a schemati's vertical section,

Fig. 2 einen Halbschnitt durch die Generatorbaugruppe gemäß Fig. 1 in größerer Einzelheit, Fig. 2 is a half section through the generator assembly of FIG. 1 in greater detail,

Fig. 3 eine Variante der Generatorbaugruppe ähnlich Fig. 2, und Fig. 3 shows a variant of the generator assembly similar to Fig. 2, and

Fig. 4 eine Ausführungsweise nach dem Stand der Technik, bei der der Generator einfach in Stator und Rotor geteilt ist, wobei jedes dieser Teile unterschied­ lichen Baugruppen der Windkraftanlage zugeordnet ist und der Generator in dieser Ausführungsvariante keine eigene Lagerung besitzt. Fig. 4 shows an embodiment according to the prior art, in which the generator is simply divided into the stator and rotor, each of these parts being assigned different components of the wind turbine and the generator in this embodiment does not have its own storage.

In Fig. 1 ist in einem schematischen Halbschnitt ein Vielpol-Synchrongenerator 1 im eingebauten Zustand einer getriebelosen Horizontalachsen-Windkraftanlage gezeigt, wobei in Fig. 2 die Einzelheit der Generatorbaugruppe in einem Halbschnitt besonders herausgestellt ist.In Fig. 1, in a schematic half-section of a multi-pole synchronous generator 1 in the installed state of a gearless horizontal-axis wind turbine is shown, in Fig. 2, the detail of the generator assembly is particularly exposed in a half-section.

Es handelt sich dabei um einen permanenterregten Synchron­ generator mit hoher Polzahl in einer Ausführung als Außen­ läufer. An den Rotor 11 des Generators ist die Nabe 2 ange­ flanscht. Der Generator ist über den Anschlußflansch 14 mit dem Turmkopf 3 der Windkraftanlage verbunden. Der Turmkopf 3 ist seinerseits auf dem Turm 4 der Windkraftanlage drehbar gelagert.It is a permanently excited synchronous generator with a high number of poles in an external rotor version. The hub 2 is flanged to the rotor 11 of the generator. The generator is connected to the tower head 3 of the wind turbine via the connecting flange 14 . The tower head 3 is in turn rotatably mounted on the tower 4 of the wind turbine.

Der Vielpol-Synchrongenerator 1 besitzt einen verformungs­ steif ausgebildeten Stator 8 und einen verformungssteif aus­ gebildeten Rotor 11, die ihrerseits über eine fliegende Lage­ rung 15 innerhalb des Generators miteinander verbunden sind, die sowohl die Drehbewegung des Rotors abstützt als auch zur Aufnahme extern eingeleiteter Kräfte und Momente dient und dadurch eine zusätzliche Lagerung der Nabe mit den Rotorblät­ tern überflüssig macht. Die Konstruktion, besonders die der Lagerung, ist so ausgelegt, daß der Vielpol-Synchrongenera­ tor als Baueinheit oder Verbindungselement zwischen Turmkopf 3 und Nabe 2 problemlos vor Ort einer Windkraftanlage inte­ griert werden kann. Im Betrieb werden alle vom Wind über die Rotorblätter in die Nabe eingeleiteten Kräfte und Momente aufgenommen und in den Turmkopf 3 weitergeleitet.The multi-pole synchronous generator 1 has a rigid stator 8 and a rigid stator made of rotor 11 , which in turn are connected via a flying position 15 within the generator, which both supports the rotary movement of the rotor and also absorbs externally introduced forces and Moments serves and thus an additional storage of the hub with the rotor blades is superfluous. The construction, especially the storage, is designed so that the multi-pole synchronous generator can be integrated as a structural unit or connecting element between tower head 3 and hub 2 without any problems on site of a wind turbine. In operation, all the forces and moments introduced by the wind via the rotor blades into the hub are absorbed and passed on to the tower head 3 .

Wie insbesondere aus Fig. 2 zu entnehmen ist, ist der Rotor 11 mit Permanentmagneten 10 bestückt. Die Dreiphasenwicklung mit Blechpaketen 9 sitzt auf dem Stator 8. Die fliegende Lagerung 15 zwischen Rotor und Stator ist hier durch zwei räumlich getrennte Kegellager in O-Anordnung ausgeführt. Die Ausführung der Lagerung 15 in O-Anordnung mit kleinem Lager­ abstand verhindert große Durchbiegungen bei großer Steifig­ keit, was die Einhaltung des Luftspaltes unter höchsten Bean­ spruchungen ermöglicht.As can be seen in particular from FIG. 2, the rotor 11 is equipped with permanent magnets 10 . The three-phase winding with laminated cores 9 sits on the stator 8 . The flying bearing 15 between the rotor and the stator is designed here by two spatially separate tapered bearings in an O arrangement. The design of the bearing 15 in an O arrangement with a small bearing distance prevents large deflections with high stiffness, which enables compliance with the air gap under the highest stresses.

In Fig. 3 ist die Lagerung 15 als einteiliges Lager ausge­ führt, wobei in dieser Darstellung auch ein Klemmenkasten 7 angedeutet ist, welcher in den Vielpol-Synchrongenerator 1 integriert ist.In Fig. 3, the bearing 15 leads out as a one-piece bearing, which also shows a terminal box 7 , which is integrated in the multi-pole synchronous generator 1 .

Die Baugruppe des Vielpol-Synchrongenerators 1 besteht im wesentlichen aus zwei tragenden Teilen, dem Rotor 8 und dem Rotor 11, und es sind in die Baugruppe Kühlung 12, Generator­ dichtung 5, Bremse und/oder Feststellvorrichtung 6, sowie vorgenannte Klemmenkasten 7 und auch Schnittstellen zur Signalübertragung und Lagerschmierung integriert.The assembly of the multi-pole synchronous generator 1 consists essentially of two supporting parts, the rotor 8 and the rotor 11 , and there are cooling in the assembly 12 , generator seal 5 , brake and / or locking device 6 , and the aforementioned terminal box 7 and interfaces integrated for signal transmission and bearing lubrication.

Der Vielpol-Synchrongenerator weist einen zentralen Durch­ gang 20 mit einem vergleichsweise großen Durchmesser auf. Die Ausführung des Stators 8 mit großem Innendurchmesser läßt eine Wartung von Nabe 2, Rotorblättern 15 und eventuell in die Nabe 2 integrierte Blattverstelleinrichtungen und Meß­ vorrichtung vom Innern des Turmkopfes 3 aus zu.The multi-pole synchronous generator has a central passage 20 with a comparatively large diameter. The design of the stator 8 with a large inner diameter allows maintenance of the hub 2 , rotor blades 15 and possibly integrated in the hub 2 blade adjustment devices and measuring device from the inside of the tower head 3 .

Durch die ungeteilte Ausführung von Stator 8 und Rotor 11 ist gegenüber herkömmlichen elektrischen Generatoren ein vereinfachter Zusammenbau gewährleistet.The undivided design of the stator 8 and rotor 11 ensures a simplified assembly compared to conventional electrical generators.

Da die gesamte Windkraftanlage im mechanischen Antriebs­ strang nur noch eine Lagerung besitzt, scheiden Fluchtungs­ fehler aus, wie sie bei Anlagen herkömmlicher Bauart auftre­ ten.Because the entire wind turbine in the mechanical drive strand only has one storage, separate alignment errors that occur in systems of conventional design ten.

Der Einbau der Baugruppe in eine Windkraftanlage wird insbe­ sondere durch die zwei klar definierten Anschlußflansche 13 und 14 zur Nabe 2 bzw. zum Turmkopf 3 erleichtert.The installation of the module in a wind turbine is particularly facilitated by the two clearly defined connecting flanges 13 and 14 to the hub 2 and the tower head 3 .

Ersichtlich ermöglicht die Erfindung es Generatorherstel­ lern, einen Vielpol-Synchrongenerator - permanentmagneterregt oder fremderregt - als abgeschlossene und getestete Bau­ gruppe für eine Montage einer Windkraftanlage zu liefern. Die Windkraftanlage kann grundsätzlich unterschiedlich konzi­ piert sein, sofern die Anschlußflansche 13 und 14 klar defi­ niert sind.Obviously, the invention enables generator manufacturers to deliver a multi-pole synchronous generator - permanently magnet excited or externally excited - as a completed and tested assembly group for the assembly of a wind turbine. The wind turbine can in principle be designed differently, provided the connecting flanges 13 and 14 are clearly defined.

Claims (6)

1. Vielpol-Synchrongenerator für getriebelose Horizontal­ achsenwindkraftanlagen, als Innen- oder Außenläufer, mit einem Stator (8) und einem Rotor (11), dadurch gekennzeichnet, daß Stator (8) und Rotor (11) über eine fliegende, so­ wohl die Drehbewegung des Rotors abstützende als auch extern eingeleitete Kräfte und Momente aufnehmende Lage­ rung (15) innerhalb des Generators (1) miteinander ver­ bunden sind.1. Multi-pole synchronous generator for gearless horizontal axis wind turbines, as an internal or external rotor, with a stator ( 8 ) and a rotor ( 11 ), characterized in that the stator ( 8 ) and rotor ( 11 ) over a flying, probably the rotary movement the rotor supporting and externally introduced forces and moments absorbing position tion ( 15 ) within the generator ( 1 ) are connected to each other. 2. Vielpol-Synchrongenerator nach Anspruch 1, dadurch gekennzeichnet, daß der Generator (1) aus nur zwei tragenden Teilen be­ steht.2. Multi-pole synchronous generator according to claim 1, characterized in that the generator ( 1 ) consists of only two load-bearing parts. 3. Vielpol-Synchrongenerator nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zumindest eine der nachfolgenden Komponenten wie
  • - Kühlung des Generators (12),
  • - Abdichtung des Generators und der Nabe (5),
  • - Bremse/Feststellvorrichtung (6),
  • - Klemmenkasten (7)
  • - Schnitt stellen für Signalübertragung, und
  • - Lagerschmierung in den Generator (1) integriert ist/sind.
3. Multi-pole synchronous generator according to claim 1 or 2, characterized in that at least one of the following components such as
  • - cooling of the generator ( 12 ),
  • - sealing the generator and the hub ( 5 ),
  • - brake / locking device ( 6 ),
  • - terminal box ( 7 )
  • - Interfaces for signal transmission, and
  • - Bearing lubrication is / are integrated in the generator ( 1 ).
4. Vielpol-Synchrongenerator nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß Stator (8) und Rotor (11) verformungssteif ausgebil­ det sind und die Lagerung (15) zwischen Stator (8) und Rotor (11) in O-Anordnung mit kleinem Lagerabstand ausge­ führt ist. 4. Multi-pole synchronous generator according to one of claims 1 to 3, characterized in that the stator ( 8 ) and rotor ( 11 ) are deformation-resistant ausgebil det and the bearing ( 15 ) between the stator ( 8 ) and rotor ( 11 ) in an O arrangement is carried out with a small clearance. 5. Vielpol-Synchrongenerator nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein zentraler Generator-Durchgang (20) vorgesehen und die Nabe (2) vom Innern des Turmkopfs (3) der Wind­ kraftanlage aus zugänglich ist.5. Multi-pole synchronous generator according to one of claims 1 to 4, characterized in that a central generator passage ( 20 ) is provided and the hub ( 2 ) from the inside of the tower head ( 3 ) of the wind turbine is accessible. 6. Vielpol-Synchrongenerator nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Stator (8) über einen Flansch (14) mit dem Turm­ kopf (3) und der Rotor (11) über einen Flansch (13) mit der Nabe (2) verbunden sind.6. Multi-pole synchronous generator according to one of claims 1 to 5, characterized in that the stator ( 8 ) via a flange ( 14 ) with the tower head ( 3 ) and the rotor ( 11 ) via a flange ( 13 ) with the hub ( 2 ) are connected.
DE4402184A 1994-01-26 1994-01-26 Multi-pole synchronous generator for gearless horizontal-axis wind turbines with nominal powers of up to several megawatts Expired - Lifetime DE4402184C2 (en)

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Owner name: VENSYS ENERGY AG, 66539 NEUNKIRCHEN, DE

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