EP1499805A1 - Wind power installation comprising at least two components and a data network - Google Patents
Wind power installation comprising at least two components and a data networkInfo
- Publication number
- EP1499805A1 EP1499805A1 EP03789388A EP03789388A EP1499805A1 EP 1499805 A1 EP1499805 A1 EP 1499805A1 EP 03789388 A EP03789388 A EP 03789388A EP 03789388 A EP03789388 A EP 03789388A EP 1499805 A1 EP1499805 A1 EP 1499805A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- components
- control
- wind
- wind power
- 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- Withdrawn
Links
- 238000009434 installation Methods 0.000 title abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
-
- 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
Definitions
- Wind turbine with at least two components and a data network
- the present invention relates to a wind energy plant for generating electrical energy, with at least two components, each having sensors and actuators and having a control unit.
- Currently known wind turbines have a central automation system. This system has a central controller that controls the wind turbine via special hardware components such as PLCs and bus connections.
- special functions and specially adapted software are used that use a manufacturer-specific range of functions. It is therefore not readily possible to replace individual devices in the wind turbine. A change in a component requires complex changes in the control.
- the invention has for its object to provide a wind power plant, the control of which requires no or only minor adjustments when replacing individual parts of the wind power plant.
- the object is achieved by a wind turbine having the features from claim 1.
- Advantageous refinements form the subject of the subclaims.
- the wind turbine according to the invention consists of at least two components, each of which has sensors and actuators.
- Each of the control units is connected to a data network for the exchange of data and signals.
- Each component exchanges with the other components via the control unit assigned to it Signals on the operating states of the component, sensed sensor values and / or control signals for the other components.
- central control is dispensed with.
- the control is based on the individual components.
- This approach to component-based control of the wind power plant is based on the knowledge that the control of the signal exchange between the components of a wind power plant is sufficient and that a central control is not required, but can be modularized without loss of speed and accuracy.
- Individual operating states occurring on the components are controlled in the construction of the wind energy installation according to the invention depending on the specific parameters on the components.
- the communication of the operating states between the components takes place independently of specific parameters. The consequence of this is that components from different manufacturers can be exchanged without changes in the control routines of the other components being necessary.
- each component is controlled exclusively by the their associated ⁇ rdneterf control unit.
- a control is avoided in which a control device directly controls a component not assigned to it.
- a drive train unit and an electrical unit are preferably provided as components of the wind energy installation. Each of these units has its own controller that exchanges data with the other controller. Values measured in the components can of course also be exchanged here. It has been found that the drive train unit can be broken down into further independent units.
- the drive train unit has a brake unit, a shaft unit, a generator unit or combinations of these units.
- the drive train can be provided with a gear unit.
- the electrical unit is expediently broken down into one or more independent units.
- a network connection unit, a converter unit, a transformer unit or combinations of these units have proven to be expedient.
- the tower unit consists of a heating unit, an elevator unit, an access control unit or combinations of these units.
- the only sketch shows the schematic structure of a wind turbine.
- the rotor blades 10 shown have a pitch control 12 for adjusting the blade angle.
- the rotor shaft 14 opens into a gearbox 16.
- the output shaft of the gearbox 16 is additionally provided with a braking system 18 and opens into a generator 20.
- the electrical energy generated by the generator 20 is adapted to the network conditions in a converter 22 and via the connection 24 ins Grid 26 fed.
- a cooling system 28 and an azimuth drive 30 are provided in the nacelle.
- Other components for example for monitoring and diagnosing the operation, can also be provided in the nacelle.
- ETHER network 32 All components are connected to an ETHER network 32, via which data and signals can be received and sent for other components.
- the necessary control is present on the main components in order to automate the overall system.
- the advantage here is that the interfaces to all component suppliers are clearly defined and the components communicate with each other via the defined interfaces. This means that the components can be replaced quickly and inexpensively, regardless of individual suppliers.
- signals for monitoring the components can also be integrated.
Abstract
The invention relates to a wind power installation which is used to produce electrical energy and comprises at least two components which are respectively provided with sensors and actuators and comprise a control appliance. Each control appliance is connected to a data network and exchanges signals relating to the operating states of the components, and sensor values and/or control signals for the other components, with the control appliances of the other components.
Description
Windenergieanlage mit mindestens zwei Komponenten und einem Datennetz Wind turbine with at least two components and a data network
Die vorliegende Erfindung betrifft eine Windenergiea lage zur Erzeugung elektrischer Energie, mit mindestens zwei Komponenten, die jeweils Sensoren und Aktoren besitzen und ein Steuergerät aufweisen. Derzeit bekannte Windenergieanlagen besitzen ein zentrales Automatisierungssystem. Dieses System besitzt eine zentrale Steuerung, die über spezielle Hardwarekomponenten wie beispielsweise SPS und Bus-Anschlüsse die Windenergieanlage steuert. Hierbei werden Sonderfunktionen sowie speziell angepaßte Software eingesetzt, die einen herstellerspezifischen Funktionsumfang nutzen. Es ist daher nicht ohne weiteres möglich, einzelne Geräte in der Windenergieanlage auszutauschen. Eine Änderung in einem Bauteil macht komplexe Änderungen in der Steuerung erforderlich.The present invention relates to a wind energy plant for generating electrical energy, with at least two components, each having sensors and actuators and having a control unit. Currently known wind turbines have a central automation system. This system has a central controller that controls the wind turbine via special hardware components such as PLCs and bus connections. Here, special functions and specially adapted software are used that use a manufacturer-specific range of functions. It is therefore not readily possible to replace individual devices in the wind turbine. A change in a component requires complex changes in the control.
Der Erfindung liegt die Aufgabe zugrunde, eine Windenergieanlage bereitzustellen, bei deren Steuerung keine oder nur geringe Anpassungen beim Austausch einzelner Teile der Windenergieanlage erforderlich werden.The invention has for its object to provide a wind power plant, the control of which requires no or only minor adjustments when replacing individual parts of the wind power plant.
Erfindungsgemäß wird die Aufgabe durch eine Windenergieanlage mit den Merkmalen aus Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen bilden den Gegenstand der Unteransprüche.According to the invention, the object is achieved by a wind turbine having the features from claim 1. Advantageous refinements form the subject of the subclaims.
Die erfindungsgemäße Windenergieanlage besteht aus mindestens zwei Komponenten, die jeweils Sensoren und Aktoren besitzen. Jedes der Steuergeräte ist mit einem Datennetz zum Austausch von Daten und Signalen verbunden. Jede Komponente tauscht über das ihr zugeordnete Steuergerät mit den anderen Komponenten
Signale zu den Betriebszuständen der Komponente, gefühlte Sensorwerte und/oder Steuersignale für die anderen Komponenten aus.The wind turbine according to the invention consists of at least two components, each of which has sensors and actuators. Each of the control units is connected to a data network for the exchange of data and signals. Each component exchanges with the other components via the control unit assigned to it Signals on the operating states of the component, sensed sensor values and / or control signals for the other components.
Bei der erfindungsgemäßen Windenergieanlage wird auf eine zentrale Steuerung verzichtet. Die Steuerung erfolgt auf Basis der einzelnen Komponenten. Diesem Ansatz zu einer komponentenbasierten Steuerung der Windenergieanlage liegt die Erkenntnis zugrunde, daß der Steuerung der Signalaustausch zwischen den Komponenten einer Windenergieanlage genügt, und es einer zentralen Steuerung nicht bedarf, sondern die sich ohne Verlust an Geschwindigkeit und Genauigkeit modularisieren läßt. Einzelne an den Komponenten auftretende Betriebszustände werden bei dem erfm-dungsgemäßen Aufbau der Windenergieanlage abhängig von den spezifischen Parametern an den Komponenten angesteuert. Die Kommunikation der Betriebszustände zwischen den Komponenten erfolgt dagegen unabhängig von spezifischen Parametern- Folge hiervon ist, daß Komponenten unterschiedlicher Hersteller ausgetauscht werden können, ohne daß Änderungen in den Steuerroutinen der anderen Komponenten erforderlich sind.In the wind power plant according to the invention, central control is dispensed with. The control is based on the individual components. This approach to component-based control of the wind power plant is based on the knowledge that the control of the signal exchange between the components of a wind power plant is sufficient and that a central control is not required, but can be modularized without loss of speed and accuracy. Individual operating states occurring on the components are controlled in the construction of the wind energy installation according to the invention depending on the specific parameters on the components. On the other hand, the communication of the operating states between the components takes place independently of specific parameters. The consequence of this is that components from different manufacturers can be exchanged without changes in the control routines of the other components being necessary.
In einer bevorzugten Ausgestaltung wird jede Komponente ausschließlich von dem ihr zugeόrdneterf Steuergerät angesteuert. In dieser Ausgestaltung wird eine Steuerung vermieden, bei der ein Steuergerät eine ihm nicht zugeordnete Komponente direkt steuert.In a preferred embodiment, each component is controlled exclusively by the their associated ό rdneterf control unit. In this embodiment, a control is avoided in which a control device directly controls a component not assigned to it.
Als Komponenten der Windenergieanlage sind bevorzugt eine Antriebsstrangeinheit und eine Elektrikeinheit vorgesehen. Jede dieser Einheiten besitzt eine eigene Steuerung, die Daten mit der anderen Steuerung austauscht. Hierbei können natürlich auch in den Komponenten gemessene Werte miteinander ausgetauscht werden.
Es hat sich herausgestellt, daß die Antriebsstrangeinheit in weitere eigenständige Einheiten zerlegt werden kann. Die Antriebsstrangeinheit weist eine Bremseinheit, eine Welleneinheit, eine Generatoreinheit oder Kombinationen dieser Einheiten auf. Zusätzlich kann der Antriebsstrang mit einer Getriebeeinheit versehen sein.A drive train unit and an electrical unit are preferably provided as components of the wind energy installation. Each of these units has its own controller that exchanges data with the other controller. Values measured in the components can of course also be exchanged here. It has been found that the drive train unit can be broken down into further independent units. The drive train unit has a brake unit, a shaft unit, a generator unit or combinations of these units. In addition, the drive train can be provided with a gear unit.
Die Elektrikeinheit wird zweckmäßigerweise in eine oder mehrere eigenständige Einheiten zerlegt. Als Einheiten erweisen sich hierbei eine Netzanschlußeinheit, eine Umwandlereinheit, eine Transformatoreinheit oder Kombinationen dieser Einheiten als zweckmäßig.The electrical unit is expediently broken down into one or more independent units. A network connection unit, a converter unit, a transformer unit or combinations of these units have proven to be expedient.
Bei Windenergieanlagen, ob an See oder an Land, ist es zweckmäßig zusätzlich eine Turmeinheit vorzusehen. Die Turmeinheit besteht aus einer Heizeinheit, einer Aufzugeinheit, einer Zugangskontrolleinheit oder Kombinationen dieser Einheiten.In the case of wind turbines, whether at sea or on land, it is advisable to provide an additional tower unit. The tower unit consists of a heating unit, an elevator unit, an access control unit or combinations of these units.
Um die Kommunikation zwischen den Einheiten sicherzustellen, hat es sich als zweckmäßig erwiesen, ein ETHER-Netz oder ein Feldbus-Netz zu verwenden.To ensure communication between the units, it has proved moderately as zwec k to use a ETHER network or a fieldbus network.
Die erfϊndungsgemäße Windenergieanlage wird nachfolgend anhand einer Skizze näher erläutert.The wind power plant according to the invention is explained in more detail below with the aid of a sketch.
Die einzige Skizze zeigt den schematischen Aufbau einer Windenergieanlage. Die dargestellten Rotorblätter 10 besitzen eine Pitch-Steuerung 12 zur Verstellung des Blattwinkels. Die Rotorwelle 14 mündet in ein Getriebe 16. Die Abgangswelle des Getriebes 16 ist zusätzlich mit einem Bremssystem 18 versehen und mündet in einen Generator 20. Die vom Generator 20 erzeugte elektrische Energie wird in einem Umrichter 22 an die Netzbedingungen angepaßt und über den Anschluß 24 ins Netz 26 eingespeist. Zusätzlich vorgesehen ist in der Gondel ein Kühlsystem 28 sowie ein Azimutantrieb 30.
Auch weitere Komponenten, beispielsweise zur Überwachung und Diagnose des Betriebs, können in der Gondel vorgesehen sein.The only sketch shows the schematic structure of a wind turbine. The rotor blades 10 shown have a pitch control 12 for adjusting the blade angle. The rotor shaft 14 opens into a gearbox 16. The output shaft of the gearbox 16 is additionally provided with a braking system 18 and opens into a generator 20. The electrical energy generated by the generator 20 is adapted to the network conditions in a converter 22 and via the connection 24 ins Grid 26 fed. In addition, a cooling system 28 and an azimuth drive 30 are provided in the nacelle. Other components, for example for monitoring and diagnosing the operation, can also be provided in the nacelle.
Sämtliche Komponenten sind mit einem ETHER-Netz 32 verbunden, über das Daten und Signale empfangen und für andere Komponenten abgesetzt werden können.All components are connected to an ETHER network 32, via which data and signals can be received and sent for other components.
Bei der erfindungsgemäßen Windenergieanlage ist auf den Hauptkomponenten die notwendige Steuerung vorhanden, um das Gesamtsystem zu automatisieren. Der Vorteil hierbei ist, daß die Schnittstellen zu allen Komponentenlieferanten eindeutig festgelegt sind und die Komponenten untereinander über die festgelegten Schnittstellen miteinander kommunizieren. Dies führt dazu, daß die Komponenten unabhängig von einzelnen Lieferanten kurzfristig und kostengünstig ausgetauscht werden können. Ferner besteht der Vorteil, daß Signale für eine Überwachung der Komponenten mit integriert werden können.
In the wind power plant according to the invention, the necessary control is present on the main components in order to automate the overall system. The advantage here is that the interfaces to all component suppliers are clearly defined and the components communicate with each other via the defined interfaces. This means that the components can be replaced quickly and inexpensively, regardless of individual suppliers. There is also the advantage that signals for monitoring the components can also be integrated.
Claims
1. Windenergieanlage zur Erzeugung elektrischer Energie mit mindestens zwei Komponenten (12, 14, 16, 18, 20, 22, 24, 28, 30), die jeweils Sensoren und/oder Aktoren besitzen und ein Steuergerät aufweisen, wobei jedes der Steuergeräte mit einem Datennetz (30) verbunden ist und mit den Steuergeräten der anderen Komponente Signale zu den Betriebszuständen der Komponenten, gefühlte Sensorwerte und/oder Steuersignale für die anderen Komponenten austauscht.1. Wind energy plant for generating electrical energy with at least two components (12, 14, 16, 18, 20, 22, 24, 28, 30), each having sensors and / or actuators and having a control unit, each of the control units having one Data network (30) is connected and exchanges signals with the control units of the other component about the operating states of the components, sensed sensor values and / or control signals for the other components.
2. Windenergieanlage nach Anspruch 1, dadurch gekennzeichnet, daß jedes Steuergerät einer Komponente ausschließlich diese Komponente steuert.2. Wind turbine according to claim 1, characterized in that each control unit of a component controls only this component.
3. Windenergieanlage nach Anspruch 2, dadurch gekennzeichnet, daß als Komponente eine Antöebsstrangeinheit (12, 16, 18) und eine elektrische Einheit (20, 22, 24) vorgesehen sind.3. A wind power plant according to claim 2, characterized in that an anti-power train unit (12, 16, 18) and an electrical unit (20, 22, 24) are provided as components.
4. Windenergieanlage nach Anspruch 3, dadurch gekennzeichnet, daß die Antriebsstrangeinheit eine oder mehrere der folgenden Einheiten als eigenständige Einheit aufweist:4. Wind power plant according to claim 3, characterized in that the drive train unit has one or more of the following units as an independent unit:
Bremseinheit (18), Welleneinheit (14), Generatoreinheit (20).Brake unit (18), shaft unit (14), generator unit (20).
5. Windenergieanlage nach Anspruch 4, dadurch gekennzeichnet, daß der Antriebsstrang zusätzlich eine Getriebeeinheit (16) aufweist. 5. Wind turbine according to claim 4, characterized in that the drive train additionally has a gear unit (16).
6. Windenergieanlage nach Anspruch 3, dadurch gekennzeichnet, daß die elektrische Einheit eine oder mehrere der folgenden Einheiten als eigenständige Einheit aufweist:6. Wind energy plant according to claim 3, characterized in that the electrical unit has one or more of the following units as an independent unit:
Netzanschlußeinheit (24), Umwandlereinheit (22), Transformatoreinheit.Power supply unit (24), converter unit (22), transformer unit.
7. Windenergieanlage nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß als zusätzliche Komponente eine Turmeinheit vorgesehen ist.7. Wind turbine according to one of claims 1 to 6, characterized in that a tower unit is provided as an additional component.
8. Windenergieanlage nach Anspruch 7, dadurch gekennzeichnet, daß die Turmeinheit eine oder mehrere von den folgenden Einheiten als Komponente besitzt:8. Wind energy plant according to claim 7, characterized in that the tower unit has one or more of the following units as a component:
Heizeinheit, Aufzugeinrichtung und Zugangskontrolleinrichtung.Heating unit, elevator device and access control device.
9. _ Windenergieanlage nach einem der Ansprüche _l.bis.-8, dadurch gekennzeichnet, daß als Datennetz ein ETHER-Netz (32) vorgesehen ist.9. _ Wind power plant according to one of claims _l.bis.-8, characterized in that an ETHER network (32) is provided as the data network.
10. Windenergieanlage nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß als Datennetz ein Feldbus-Netz vorgesehen ist. 10. Wind power plant according to one of claims 1 to 8, characterized in that a fieldbus network is provided as the data network.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10300174 | 2003-01-08 | ||
DE10300174A DE10300174B3 (en) | 2003-01-08 | 2003-01-08 | Wind turbine with at least two components and a data network |
PCT/EP2003/014767 WO2004063568A1 (en) | 2003-01-08 | 2003-12-23 | Wind power installation comprising at least two components and a data network |
Publications (1)
Publication Number | Publication Date |
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EP1499805A1 true EP1499805A1 (en) | 2005-01-26 |
Family
ID=32694867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03789388A Withdrawn EP1499805A1 (en) | 2003-01-08 | 2003-12-23 | Wind power installation comprising at least two components and a data network |
Country Status (10)
Country | Link |
---|---|
US (1) | US7285870B2 (en) |
EP (1) | EP1499805A1 (en) |
JP (1) | JP2006513349A (en) |
CN (1) | CN101133244B (en) |
AU (1) | AU2003293974B2 (en) |
BR (1) | BR0308210A (en) |
CA (1) | CA2512835C (en) |
DE (1) | DE10300174B3 (en) |
NO (1) | NO20043757L (en) |
WO (1) | WO2004063568A1 (en) |
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DE102005033229A1 (en) * | 2005-07-15 | 2007-01-18 | Siemens Ag | Network for controlling wind power plants has communication devices for transmission of information from first arithmetic and logic unit to second arithmetic and logic unit |
US8543996B2 (en) * | 2005-11-18 | 2013-09-24 | General Electric Company | System and method for updating wind farm software |
DE102007054215A1 (en) * | 2007-11-12 | 2009-05-20 | Repower Systems Ag | Wind energy plant with heating device |
US8805595B2 (en) * | 2008-01-17 | 2014-08-12 | General Electric Company | Wind turbine arranged for independent operation of its components and related method and computer program |
DK2080903T4 (en) | 2008-01-21 | 2020-04-20 | Siemens Gamesa Renewable Energy As | Reliable system for controlling wind turbines |
EP2265817A2 (en) * | 2008-03-24 | 2010-12-29 | Nordic Windpower Limited | Turbine and system for generating power from fluid flow and method therefor |
DE102008028568A1 (en) | 2008-06-16 | 2009-12-31 | Nordex Energy Gmbh | Method for controlling a wind energy plant |
DE102008028573A1 (en) * | 2008-06-16 | 2009-12-31 | Nordex Energy Gmbh | Method for controlling a wind farm |
DE102009004385B4 (en) * | 2009-01-12 | 2010-11-25 | Repower Systems Ag | Method and device for monitoring a wind turbine |
DE102009007623A1 (en) | 2009-02-05 | 2010-08-19 | Repower Systems Ag | Parameterization of wind turbines |
ITVI20110013U1 (en) * | 2011-02-23 | 2012-08-24 | Itaco S R L | ELECTRIC GENERATOR |
US8977403B2 (en) * | 2011-06-22 | 2015-03-10 | Mitsubishi Heavy Industries, Ltd. | Remote monitoring apparatus, wind turbine generator system, and method of controlling remote monitoring apparatus |
EP2807372A1 (en) * | 2012-01-27 | 2014-12-03 | KK-Electronic A/S | Modular control system for a wind turbine or a wind power park and wind turbine or wind power park with such control system |
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2003
- 2003-01-08 DE DE10300174A patent/DE10300174B3/en not_active Expired - Lifetime
- 2003-12-23 BR BR0308210-5A patent/BR0308210A/en not_active IP Right Cessation
- 2003-12-23 US US10/541,734 patent/US7285870B2/en not_active Expired - Fee Related
- 2003-12-23 EP EP03789388A patent/EP1499805A1/en not_active Withdrawn
- 2003-12-23 JP JP2004566025A patent/JP2006513349A/en active Pending
- 2003-12-23 CA CA2512835A patent/CA2512835C/en not_active Expired - Fee Related
- 2003-12-23 AU AU2003293974A patent/AU2003293974B2/en not_active Ceased
- 2003-12-23 CN CN2003801085454A patent/CN101133244B/en not_active Expired - Fee Related
- 2003-12-23 WO PCT/EP2003/014767 patent/WO2004063568A1/en active Application Filing
-
2004
- 2004-09-08 NO NO20043757A patent/NO20043757L/en not_active Application Discontinuation
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ERICH HAU: "WINDKRAFTANLAGEN", SPRINGER VERLAG, BERLIN, 241430 * |
See also references of WO2004063568A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004063568A1 (en) | 2004-07-29 |
CN101133244B (en) | 2011-09-14 |
CA2512835A1 (en) | 2004-07-29 |
US7285870B2 (en) | 2007-10-23 |
US20060100748A1 (en) | 2006-05-11 |
BR0308210A (en) | 2004-12-21 |
DE10300174B3 (en) | 2004-12-23 |
AU2003293974A1 (en) | 2004-08-10 |
AU2003293974B2 (en) | 2009-12-03 |
CA2512835C (en) | 2012-04-10 |
JP2006513349A (en) | 2006-04-20 |
CN101133244A (en) | 2008-02-27 |
NO20043757L (en) | 2004-09-08 |
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