DE19644705A1 - Wind power generator station turbine rotor-blade setting device - Google Patents
Wind power generator station turbine rotor-blade setting deviceInfo
- Publication number
- DE19644705A1 DE19644705A1 DE19644705A DE19644705A DE19644705A1 DE 19644705 A1 DE19644705 A1 DE 19644705A1 DE 19644705 A DE19644705 A DE 19644705A DE 19644705 A DE19644705 A DE 19644705A DE 19644705 A1 DE19644705 A1 DE 19644705A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- energy
- blade
- bearing
- generator
- 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- Withdrawn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
- 238000012546 transfer Methods 0.000 description 3
- 238000012432 intermediate storage Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
- B64C27/59—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
- B64C27/615—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical including flaps mounted on blades
-
- 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
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/30—Wing lift efficiency
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Verstellung von Rotorblättern, insbeson dere einen Verstellantrieb zum individuellen Verstellen des Einstellwinkels eines oder mehrerer Rotorblätter für Windkraftanlagen zur Leistungsbegrenzung.The invention relates to a device for adjusting rotor blades, in particular one an adjustment drive for individually adjusting the setting angle of one or several rotor blades for wind turbines for power limitation.
Die Notabschaltung von Windkraftanlagen für den Fall, daß die Netzspannung aus fällt und die Windkraftanlage sicher stillgelegt werden muß, erfordert derzeit noch einen erheblichen Aufwand an Anlagen- und Steuertechnik. Solche Notabschaltun gen werden im allgemeinen dadurch realisiert, daß eine Scheibenbremse die Hauptwelle und damit den Rotor soweit abbremst, daß er zum Stillstand kommt, wenn alle Versorgungsspannungen ausfallen. Diese Notbremse muß in der Lage sein die Stillsetzung des Rotors auch unter maximaler Windgeschwindigkeit zu rea lisieren. Deshalb muß diese Anlagenkomponente relativ stabil ausgelegt werden. Weiterhin ist auch die Bereitstellung von Energie meist mit Hilfe von ständig nachzu ladenden Akkumulatoren oder Druckluftflaschen erforderlich.The emergency shutdown of wind turbines in the event that the mains voltage is off falls and the wind turbine must be shut down safely, currently still required a considerable effort in plant and control technology. Such emergency shutdown conditions are generally realized in that a disc brake The main shaft and thus the rotor decelerates until it comes to a standstill, when all supply voltages fail. This emergency brake must be able to the shutdown of the rotor should be too reactive even under maximum wind speed lize. Therefore, this system component must be designed to be relatively stable. Furthermore, the provision of energy can usually be checked with the help of charging accumulators or compressed air cylinders required.
Bekannte Verstellantriebe zum Verstellen des Einstellwinkels von Rotorblättern all gemein sind in verschiedenster Weise ausgebildet. An einen Verstellantrieb für die Rotorblätter einer Windkraftanlage werden jedoch besondere Anforderungen ge stellt. Da Rotoren von Windkraftanlagen zur Erzielung eines günstigen Wirkungs grades große Abmessungen besitzen, müssen die Rotorblätter imstande sein, sehr hohe Kräfte aufzunehmen. Gleichzeitig soll die zum Verstellen der Rotorblätter auf zuwendende Kraft relativ gering sein.Known adjusting drives for adjusting the setting angle of rotor blades all common are trained in various ways. An actuator for the Rotor blades of a wind turbine, however, have special requirements poses. Because rotors of wind turbines to achieve a favorable effect have large dimensions, the rotor blades must be able to, very much absorb high forces. At the same time, the should adjust the rotor blades force to be applied be relatively low.
Bei Windkraftanlagen, die eine Blatteinstellwinkelregelung zur Leistungsbegrenzung aufweisen, werden bekanntlich Blattverstellantriebe mit hydraulischer oder elektri scher Antriebsenergie eingesetzt. Diese Antriebe sitzen auf der rotierenden Nabe, so daß die Antriebsenergie von dem ruhenden Teil mittels Drehdurchführungen oder Schleifringen auf das sich drehende Teil übertragen werden muß. Damit auf diese problematische Energieübertragung verzichtet werden kann, muß der Antrieb auf dem ruhenden Teil installiert-werden.In wind turbines that have a blade pitch control to limit output have, as is known, blade adjustment drives with hydraulic or electrical sher drive energy used. These drives sit on the rotating hub, so that the drive energy from the stationary part by means of rotary unions or Slip rings must be transferred to the rotating part. So on this problematic energy transfer can be dispensed with, the drive must the dormant part to be installed.
Nach der DE 34 14 428 besteht hierzu die Möglichkeit, ein Verteilergetriebe koaxial auf der drehenden Nabe anzuordnen und dessen Antriebswelle durch eine hohle Rotorwelle zu einem ortsfest installierten Antriebsaggregat zu führen.According to DE 34 14 428 there is the possibility of a transfer case coaxial to arrange on the rotating hub and its drive shaft through a hollow Lead the rotor shaft to a stationary installed drive unit.
Nach den bestehenden Sicherheitsbestimmungen für Winkraftanlagen darf eine Stö rung oder ein Ausfall eines Blattverstellsystems nicht zu einer Beschädigung der Anlage führen. Aus diesem Grund muß jede Anlage mit einem Sicherheitssystem ausgerüstet sein, welches Zugriff auf mindestens zwei vollständig voneinander un abhängige Bremssysteme hat. Jedes Bremssystem muß für sich allein in der Lage sein, den Rotor gezielt zu verzögern bzw. zum Stillstand zu bringen. In der Regel werden deshalb neben dem Blattverstellsystem, welches zur aerodynamischen Ab bremsung des Rotors herangezogen werden kann, mechanische Bremssysteme eingesetzt, die jedoch einem starken Verschleiß unterliegen. Dies führt zu einer aufwendigen Zustandsüberwachung, was sich auf die Herstellungs- und Wartungs kosten der Anlage niederschlägt. Weiterhin verursacht eine mechanische Bremse durch Ausfall oder Störung selbst erhebliche Stillstandszeiten, wodurch die Ausla stung der Anlage reduziert wird.According to the existing safety regulations for winkraft systems, a fault or a failure of a blade adjustment system does not damage the System. For this reason, every system must have a security system be equipped, which have access to at least two completely un dependent braking systems. Each braking system must be capable of doing so on its own be to decelerate the rotor in a targeted manner or bring it to a standstill. Usually are therefore in addition to the blade adjustment system, which for aerodynamic Ab braking of the rotor can be used, mechanical braking systems used, but which are subject to heavy wear. This leads to a elaborate condition monitoring, which affects the manufacturing and maintenance costs of the system. It also causes a mechanical brake due to failure or malfunction even considerable downtimes, which leads to system is reduced.
In der EP 094 106 A2 ist bei einem Rotorblattverstellsystem eine Bremse vorgese hen, die eine zwangsweise Drehung der Rotorblätter in Fahnenstellung bewirkt. Die se ist jedoch nur funktionsfähig, solange der Antriebsstrang sowie alle Blattlager voll funktionsfähig sind. Dies erfordert nach den einschlägigen Sicherheitsbestimmungen für Windkraftanlagen eine zusätzliche Bremseinrichtung, da das Versagen eines Teiles der Blattverstelleinrichtung im Notfall nicht zu einer Zerstörung der gesamten Anlage führen darf. Diese zusätzliche Bremsvorrichtung muß für ein mehrfaches der Nenn-Antriebsmoment des Rotors ausgelegt sein und besonders strengen Sicher heitsauflagen entsprechen. Der dafür erforderliche Bauaufwand verursacht erhebli che, der Wirtschaftlichkeit der Anlage abträgliche Investitionskosten.In EP 094 106 A2 a brake is provided for a rotor blade adjustment system hen, which causes a forced rotation of the rotor blades in the flag position. The However, it is only functional as long as the drive train and all blade bearings are full are functional. This requires according to the relevant safety regulations an additional braking device for wind turbines because the failure of one Part of the blade adjustment device in an emergency does not destroy the entire Plant may lead. This additional braking device must be used for a multiple of Nominal drive torque of the rotor must be designed and particularly strict safety compliance requirements. The construction effort required for this causes considerable investment costs that are detrimental to the economic efficiency of the system.
Aus der DE 42 21 783 C2 ist eine Vorrichtung zur Verstellung von Rotorblättern, die um ihre Längsachse drehbar gelagert sind, insbesondere für Rotorblätter an Wind kraftanlagen bekannt. Bei diesem System wird als Verteilergetriebe je Rotorblatt ein Zahnriemen verwendet, der in räumlicher Anordnung ein Ritzel eines zentralen Ver stellmotors über Umlenkrollen mit dem Rotorblatt verbindet, wobei gleichzeitig alle Ritzel mit einer Bremsscheibe verbunden sind, die mittels einer nicht mit der Ro tornabe drehenden Bremszange festgebremst werden kann. Die nicht mit der Ro tornabe drehende Bremse ist als übergeordnetes Sicherheitssystem ausgelegt und bewirkt bei drehendem Rotor eine zwangsweise Drehung der Rotorblätter in Fah nenstellung. Die im Rotor der Windkraftanlage gespeicherte Rotationsenergie liefert hierzu die Antriebsenergie. Nachteilig bei diesem System ist der hohe mechanische Aufwand und der Wartungsbedarf des Zahnriemenantrieb. Das System ist außerdem nach außen offen, d. h. nicht im Gesamtsystem eingekapselt und damit gegen Um welteinflüsse ungeschützt.DE 42 21 783 C2 describes a device for adjusting rotor blades are rotatably mounted about their longitudinal axis, in particular for rotor blades on wind power plants known. This system uses one transfer case per rotor blade Timing belt used, the spatial arrangement of a pinion of a central Ver connecting motor via pulleys with the rotor blade, all at the same time Pinions are connected to a brake disc, which is not connected to the Ro the brake caliper can be braked. The not with the ro The door hub rotating brake is designed as a higher-level safety system and causes a forced rotation of the rotor blades in Fah when the rotor is rotating position. The rotational energy stored in the rotor of the wind turbine delivers the drive energy. The disadvantage of this system is the high mechanical Effort and the maintenance requirements of the toothed belt drive. The system is also open to the outside, d. H. not encapsulated in the overall system and thus against Um world influences unprotected.
Die Aufgabe der vorliegenden Erfindung besteht darin die Nachteile der bekannten Vorrichtungen zur Verstellung von Rotorblättern, insbesondere zum individuellen Verstellen des Einstellwinkels eines oder mehrerer Rotorblätter für Windkraftanla gen zur Leistungsbegrenzung zu überwinden.The object of the present invention is the disadvantages of the known Devices for adjusting rotor blades, especially for individual Adjusting the setting angle of one or more rotor blades for wind turbines to overcome conditions to limit performance.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausbildungen der Erfindung sind im zugehörigen Unteranspruch enthal ten.According to the invention, this object is achieved by the features of claim 1. Advantageous developments of the invention are contained in the associated subclaim ten.
Die erfindungsgemäße Vorrichtung ermöglicht es durch eine Querstellung der Ro torblätter die Drehbewegung der Windkraftanlage zu stoppen und damit die Notab schaltung systemintern zu realisieren. Die für diesen Vorgang erforderliche Energie wird aus der momentanen Drehbewegung des Rotors mit Hilfe eines Generators gewonnen, der fest im Verbund Turmkopf/Rotor installiert ist und die Energie aus der Drehbewegung des Rotors relativ zum Turmkopf gewinnt. Mit der aus ihm gewonne nen Energie werden die Rotorblätter ohne Zwischenspeicherung gedreht. Die Zufuhr an weiterer Energie wird mit dem Stillstand des Rotors unterbunden. Dies ist aber in diesem Zusammenhang nicht von Bedeutung, da die Windkraftanlage nun stillge setzt ist und erst dann wieder angefahren wird, wenn wieder Hilfsenergie zur Verfü gung steht. Dies impliziert gleichzeitig einen zusätzlichen Schutz gegen Unbefugte. Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles näher erläu tert.The device according to the invention makes it possible by transverse positioning of the ro door leaves to stop the rotation of the wind turbine and thus the emergency circuit within the system. The energy required for this process becomes from the current rotary movement of the rotor with the help of a generator won, which is permanently installed in the tower head / rotor and the energy from the Rotary movement of the rotor relative to the tower head wins. With the won from it the rotor blades are rotated without intermediate storage. The feed more energy is prevented when the rotor stops. But this is in this connection is of no importance since the wind turbine is now shut down is set and is only started again when auxiliary energy is available again is available. At the same time, this implies additional protection against unauthorized persons. The invention is explained in more detail below using an exemplary embodiment tert.
In der Abbildung zeigt dieThe figure shows the
Fig. 1 in schematischer Darstellung die wesentlichen Teile einer Windkraftanlage im Schnitt ohne Turm. Fig. 1 shows a schematic representation of the essential parts of a wind turbine in section without a tower.
Die Fig. 1 zeigt in einer Schnittdarstellung den Turmkopf 1 mit der Rotorwelle 2 und der Rotornabe 12, die die Lager 4 der Rotorblätter 3 enthält. Mit 5 ist das Lager der Rotorwelle 2 im Turmkopf 1 bezeichnet und 6 zeigt den umlaufenden Zahnkranz am Lager 5. Mit dem Hilfsgenerator 11 wird die Energie zur Abschaltung der Anlage ge wonnen, wobei sein Ritzel 10 in den am Lager 5 der Rotorwelle 2 im Turmkopf 1 be findlichen Zahnkranz 6 eingreift. Fig. 1 shows a sectional view of the tower head 1 with the rotor shaft 2 and the rotor hub 12, the bearings 4 contains the rotor blades. 3 5 with the bearing of the rotor shaft 2 is referred to in the tower head 1 and 6 showing the rotating ring gear on the bearing. 5 With the auxiliary generator 11 , the energy for switching off the system is won, its pinion 10 engaging in the bearing 5 of the rotor shaft 2 in the tower head 1 be sensitive ring gear 6 .
Das Bezugszeichen 7 zeigt den umlaufenden Zahnkranz in der Rotornabe 12 am Lager 4 des Rotorblatts 3, wobei 8 den E - Motor für die Blattverstellung darstellt und 9 das Ritzel für die Blattverstellung zum Eingriff in 7 bezeichnet.The reference numeral 7 shows the revolving ring gear in the rotor hub 12 on the bearing 4 of the rotor blade 3 , 8 representing the electric motor for the blade adjustment and 9 denoting the pinion for the blade adjustment for engagement in FIG. 7.
Die vorliegende Erfindung geht davon aus, daß durch eine Querstellung der Rotor blätter die Drehbewegung der Windkraftanlage gestoppt und damit die Notabschal tung systemintern realisiert wird.The present invention is based on the fact that a transverse position of the rotor leaves the rotation of the wind turbine stopped and thus the emergency shutdown system is implemented internally.
Die für diesen Vorgang erforderliche Energie wird aus der momentanen Drehbewe gung des Rotornabe 12 mit Hilfe eines Generators 11 gewonnen, der fest im Ver bund Turmkopf 1/Rotor 12 installiert ist und die Energie aus der Drehbewegung des Rotors relativ zum Turmkopf gewinnt. Mit der aus dem Generator 11 gewonne nen Energie werden die Rotorblätter 3 aktiv ohne Zwischenspeicherung gedreht. Die Zufuhr an weiterer Energie wird mit dem Stillstand des Rotors unterbunden. Dazu ist in der Rotornabe 12 jedem Rotorblatt 3 ein Lager 4 zugeordnet. Dieses Lager 4 weist einen Zahnkranz 7 auf in dem ein Ritzel 9 des Flügelblattstellmotors 8 ein greift. Die erforderliche Energie für den Stellmotor 8 wird über den gesonderten Hilfsgenerator 11 gewonnen, der die Drehbewegung des Rotors 12 gegenüber dem Lager der Rotorwelle 5 ausnutzt. Bei hoher Windstärke wird über eine Steuerung die Energie aus dem Hilfsgenerator 11 für die Verstellung der einzelnen Rotorblätter 3 dergestalt genutzt, daß jedes einzelne Rotorblatt 3 unabhängig von den/dem ande ren quergestellt wird und damit die Drehbewegung des Rotors 12 wirksam (sicher) unterbindet, d. h. eine Abschaltung erreicht wird. The energy required for this process is obtained from the current rotary movement of the rotor hub 12 with the aid of a generator 11 which is permanently installed in the tower head 1 / rotor 12 and wins the energy from the rotary movement of the rotor relative to the tower head. With the energy obtained from the generator 11 , the rotor blades 3 are actively rotated without intermediate storage. The supply of further energy is stopped when the rotor stops. For this purpose, a bearing 4 is assigned to each rotor blade 3 in the rotor hub 12 . This bearing 4 has a ring gear 7 in which a pinion 9 of the blade actuator 8 engages. The energy required for the servomotor 8 is obtained via the separate auxiliary generator 11 , which uses the rotary movement of the rotor 12 relative to the bearing of the rotor shaft 5 . When the wind is strong, the energy from the auxiliary generator 11 is used for the adjustment of the individual rotor blades 3 in such a way that each individual rotor blade 3 is transversely independent of the other one and thus effectively (safely) prevents the rotary movement of the rotor 12 , ie a shutdown is achieved.
Der Generator kann wahlweise fest in der Rotornabe oder im Turmkopf angeordnet sein und über entsprechende Ritzel seine Drehbewegungsenergie erhalten. Der Generator kann dabei elektrische oder hydraulische Energie bereitstellen.The generator can either be fixed in the rotor hub or in the tower head be and receive its rotational kinetic energy via corresponding pinions. Of the The generator can provide electrical or hydraulic energy.
11
Turmkopf
Tower head
22nd
Rotorwelle
Rotor shaft
33rd
Rotorblatt
Rotor blade
44th
Lager Rotorblatt in Rotornabe
Bearing rotor blade in rotor hub
55
Lager Rotorwelle in Turmkopf
Bearing rotor shaft in tower head
66
umlaufender Zahnkranz am Lager Rotorwelle
circumferential ring gear on the rotor shaft bearing
77
umlaufender Zahnkranz am Lager Rotorblatt
circumferential ring gear on the rotor blade bearing
88th
E-Motor für Rotorblattverstellung
Electric motor for rotor blade adjustment
99
Ritzel für Rotorblattverstellung zum Eingriff in Pinion for rotor blade adjustment for engaging in
77
1010th
Ritzel für Hilfsenergiegenerator zum Eingriff in Pinion for auxiliary power generator for engagement in
66
1111
Hilfsenergiegenerator für Blattverstellung
Auxiliary energy generator for blade adjustment
1212th
Rotornabe
Rotor hub
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19644705A DE19644705A1 (en) | 1996-10-28 | 1996-10-28 | Wind power generator station turbine rotor-blade setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19644705A DE19644705A1 (en) | 1996-10-28 | 1996-10-28 | Wind power generator station turbine rotor-blade setting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19644705A1 true DE19644705A1 (en) | 1998-04-30 |
Family
ID=7810177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19644705A Withdrawn DE19644705A1 (en) | 1996-10-28 | 1996-10-28 | Wind power generator station turbine rotor-blade setting device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19644705A1 (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1128064A2 (en) * | 2000-02-28 | 2001-08-29 | Norbert Hennchen | Electric pitch change device for a wind turbine |
| DE20020232U1 (en) * | 2000-11-29 | 2002-01-17 | Siemens Ag | Wind turbine with auxiliary energy device for adjusting rotor blades in the event of a fault |
| DE10140793A1 (en) * | 2001-08-20 | 2003-03-06 | Gen Electric | Device for adjusting the rotor blade of a rotor of a wind turbine |
| DE10153644A1 (en) * | 2001-10-31 | 2003-05-22 | Aloys Wobben | Wind turbine with non-contact energy transfer means on the rotor |
| DE10317422A1 (en) * | 2003-04-15 | 2004-10-28 | Abb Patent Gmbh | Electricity supply device for a wind power unit has distributor to supply the electrical energy needs of the units components from a hydrogen energy store |
| DE10338127A1 (en) * | 2003-08-15 | 2005-03-17 | Repower Systems Ag | Wind turbine with a rotor |
| DE102004005169B3 (en) * | 2004-02-02 | 2005-11-03 | Repower Systems Ag | Rotor blade pitch control system for wind turbine generating electricity has DC supply for motor with parallel-wound and series-wound field coils with diode bypassing series field coil during braking |
| DE102004023773B3 (en) * | 2004-05-11 | 2005-11-17 | Repower Systems Ag | Wind turbine |
| WO2005116445A1 (en) * | 2004-05-18 | 2005-12-08 | Nordex Energy Gmbh | Method for controlling and adjusting a wind turbine |
| DE102004024563A1 (en) * | 2004-05-18 | 2005-12-15 | Nordex Energy Gmbh | Wind turbine with an auxiliary generator |
| EP1744444A1 (en) | 2005-07-13 | 2007-01-17 | REpower Systems AG | Rotor blade pitch adjustment apparatus |
| WO2010015359A1 (en) * | 2008-08-07 | 2010-02-11 | Rolls-Royce Plc | Electrical power provision to a rotatable assembly |
| DE102008051329A1 (en) | 2008-10-15 | 2010-04-22 | Suzlon Energy Gmbh | Wind turbine for producing electrical energy from wind energy, has stator designed and equipped such that rotating magnetic field is produced at stator with respect to armature that stops relative to housing |
| DE202011105711U1 (en) | 2011-09-16 | 2011-11-04 | Imo Holding Gmbh | Small wind turbine and device for actively adjusting a blade of a (small) wind turbine |
| CN101083403B (en) * | 2006-05-31 | 2012-07-18 | 通用电气公司 | Emergency pitch drive power supply |
| EP2570655A1 (en) | 2011-09-16 | 2013-03-20 | IMO Holding GmbH | Small-scale wind energy assembly and device for active adjustment of a blade for same |
| DE102011113372A1 (en) | 2011-09-16 | 2013-03-21 | Imo Holding Gmbh | Device for actively adjusting wind turbine, has main components that are provided in circular or cylindrical housing, and sheet that is actively adjusted in interior module by adjusting mechanism independent of other sheets |
| EP2463521A3 (en) * | 2010-12-08 | 2014-08-06 | Vestas Wind Systems A/S | Pitch gear |
| EP2463522A3 (en) * | 2010-12-08 | 2014-08-06 | Vestas Wind Systems A/S | Pitch gears |
| EP2781736A1 (en) * | 2013-03-19 | 2014-09-24 | Alstom Renovables España, S.L. | Wind turbine and method |
| US10190576B2 (en) * | 2006-03-10 | 2019-01-29 | Ntn Corporation | Roller bearing, retainer segment, spacer and main shaft support structure of wind-power generator |
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|---|---|---|---|---|
| DE3045499A1 (en) * | 1980-12-03 | 1982-06-24 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Wind turbine rotor blade angle setting device - uses rotation control attached to rotor hub coupled to inner sleeve carrying blades |
| EP0094106A2 (en) * | 1982-03-26 | 1983-11-16 | FDO Technische Adviseurs B.V. | Blade setting mechanism for the rotor blades of a windmill |
| DE3415428C2 (en) * | 1984-04-25 | 1992-02-20 | Liebherr-Aero-Technik Gmbh, 8998 Lindenberg, De | |
| DE4221783C2 (en) * | 1992-07-03 | 1994-06-16 | Klinger Friedrich Prof Dr Ing | Device for adjusting rotor blades |
-
1996
- 1996-10-28 DE DE19644705A patent/DE19644705A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3045499A1 (en) * | 1980-12-03 | 1982-06-24 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Wind turbine rotor blade angle setting device - uses rotation control attached to rotor hub coupled to inner sleeve carrying blades |
| EP0094106A2 (en) * | 1982-03-26 | 1983-11-16 | FDO Technische Adviseurs B.V. | Blade setting mechanism for the rotor blades of a windmill |
| DE3415428C2 (en) * | 1984-04-25 | 1992-02-20 | Liebherr-Aero-Technik Gmbh, 8998 Lindenberg, De | |
| DE4221783C2 (en) * | 1992-07-03 | 1994-06-16 | Klinger Friedrich Prof Dr Ing | Device for adjusting rotor blades |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| DE102011113372A1 (en) | 2011-09-16 | 2013-03-21 | Imo Holding Gmbh | Device for actively adjusting wind turbine, has main components that are provided in circular or cylindrical housing, and sheet that is actively adjusted in interior module by adjusting mechanism independent of other sheets |
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