DE29722109U1 - Wind turbine - Google Patents

Wind turbine

Info

Publication number
DE29722109U1
DE29722109U1 DE29722109U DE29722109U DE29722109U1 DE 29722109 U1 DE29722109 U1 DE 29722109U1 DE 29722109 U DE29722109 U DE 29722109U DE 29722109 U DE29722109 U DE 29722109U DE 29722109 U1 DE29722109 U1 DE 29722109U1
Authority
DE
Germany
Prior art keywords
motor
rotor
switch
battery
wind energy
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.)
Expired - Lifetime
Application number
DE29722109U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerodyn Engineering GmbH
Original Assignee
Aerodyn Engineering GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aerodyn Engineering GmbH filed Critical Aerodyn Engineering GmbH
Priority to DE29722109U priority Critical patent/DE29722109U1/en
Publication of DE29722109U1 publication Critical patent/DE29722109U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F03D7/0264—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
    • F03D7/0268—Parking or storm protection
    • 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
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F05B2270/1011—Purpose of the control system to control rotational speed (n) to prevent overspeed
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Description

Die Erfindung betrifft eine Windenergieanlage mit einer Mehrzahl von Rotorblättern, denen jeweils eine deren Verstellung bewirkende, mitrotierende Antriebseinheit zugeordnet ist, die aus einem Gleichstrommotor, einer diesen speisenden Batterie, einem zwischen der Batterie und dem Motor liegenden Aus-Schalter und einem von dem zugehörigen Rotorblatt bei Erreichen der Sturmposition betätigten Endschalter besteht.The invention relates to a wind turbine with a multiple rotor blades, each of which is assigned a co-rotating drive unit that adjusts them, which consists of a DC motor, a battery that supplies it, an off switch located between the battery and the motor, and a limit switch that is activated by the associated rotor blade when the storm position is reached.

19401940

Nicmannswcg 133 · D-24105 Kiel · Telephon (04 31) 8 40 75 · Telefax (04 31) 8 40 77Nicmannswcg 133 · D-24105 Kiel · Telephone (04 31) 8 40 75 · Fax (04 31) 8 40 77

MÜNCHEN - BKEMEN - BERLIN - DÜSSELDORF - POTSDAM - ALICANTE - BRANDENBURG - HÖHENKIRCHEN - KIEL - LEIPZIGMUNICH - BKEMEN - BERLIN - DÜSSELDORF - POTSDAM - ALICANTE - BRANDENBURG - HÖHENKIRCHEN - KIEL - LEIPZIG

e-mail; Postmaster@Boehmert.Boehmert.dee-mail; Postmaster@Boehmert.Boehmert.de

Eine derartige Anordnung mit einer mitrotierenden
triebseinheit, die von einer eigenen Batterie gespeist wird, hat den Vorteil, daß in Notsituationen, insbesondere bei einem Ausfall der Elektronik der Anlage, das Rotorblatt in eine Sturmposition gebracht werden kann, in der der Rotor zur Ruhe kommt.Such an arrangement with a co-rotating
The drive unit, which is powered by its own battery, has the advantage that in emergency situations, especially in the event of a failure of the system's electronics, the rotor blade can be brought into a storm position in which the rotor comes to rest.

Der Erfindung liegt die Aufgabe zugrunde, eine derartige Windenergieanlage dahingehend weiter zu verbessern, daß eine solche Verstellung der Rotorblätter bei Überschreiten einer vorgegebenen Drehgeschwindigkeit auch ohne Betätigung eines Not-Aus-Schalters erfolgt.The invention is based on the object of further improving such a wind turbine in such a way that such an adjustment of the rotor blades when a predetermined rotational speed is exceeded also takes place without actuating an emergency stop switch.

Erfindungsgemäß wird diese Aufgabe durch einen parallel zu dem Not-Aus-Schalter liegenden, bei Überschreiten einer vorgegebenen Drehgeschwindigkeit des Rotors den Gleichstrommotor mit Spannung versorgenden Fliehkraftschalter. According to the invention, this task is accomplished by a centrifugal switch that is located parallel to the emergency stop switch and supplies the DC motor with voltage when a predetermined rotational speed of the rotor is exceeded.

Ein bevorzugtes Ausführungsbeispiel zeichnet sich aus durch einen zweiten, eine Feinverstellung des zugeordneten Rotorblatts erlaubenden Elektromotor, der vorzugsweise auf die Welle des ersten Motors wirkt.A preferred embodiment is characterized by a second electric motor that allows fine adjustment of the associated rotor blade and preferably acts on the shaft of the first motor.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt:The invention is explained below using a drawing. It shows:

Fig. 1 eine teilweise geschnittene Teilansicht eines Rotors einer Windenergieanlage, undFig. 1 is a partially sectioned partial view of a rotor of a wind turbine, and

Fig. 2 ein elektrisches Prinzip-SchaltbildFig. 2 an electrical schematic diagram

BOEHMEÄTÄ:B#OEfiMERT '··· ·'BOHEMIA : B # OEfiMERT '··· ·'

Figur 1 zeigt ein geschnitten dargestelltes Rotorblatt 16, das über ein verzahntes Blattlager 3 0 gegenüber einer Nabe 38, die wiederum über eine Hauptlagerung 34 an eine Rotorwelle 3 6 angesetzt ist, um die eigene Achse verstellt werden kann. Die Verstellung erfolgt über einen ersten Gleichstrommotor 10, der über ein Getriebe 28 auf ein Antriebsritzel 32 wirkt, das wiederum in eine entsprechende Verzahnung des Blattlagers 3 0 eingreift.Figure 1 shows a sectioned rotor blade 16, which can be adjusted about its own axis via a toothed blade bearing 30 relative to a hub 38, which in turn is attached to a rotor shaft 36 via a main bearing 34. The adjustment is carried out via a first DC motor 10, which acts via a gear 28 on a drive pinion 32, which in turn engages in a corresponding toothing of the blade bearing 30.

Auf dem Gleichstrommotor 10 sitzt ein zweiter Elektromotor 22, der über ein Schneckengetriebe 24 auf die Welle des Gleichstrommotors 10 wirkt.A second electric motor 22 is mounted on the DC motor 10 and acts on the shaft of the DC motor 10 via a worm gear 24.

Figur 2 verdeutlicht die elektrische Verschaltung der die Antriebseinheit bildenden Elemente. Die beiden Motoren 10, 22 werden von einer Batterie 12 gespeist, wobei der Anker des Gleichstrommotors 10 dann mit Spannung versorgt wird, wenn entweder der Not-Aus-Schalter 14 betätigt wird, oder aber ein Fliehkraftschalter 20 bei Überschreiten einer bestimmten Umdrehungsgeschwindigkeit des Rotors schaltet.Figure 2 illustrates the electrical connection of the elements forming the drive unit. The two motors 10, 22 are powered by a battery 12, whereby the armature of the DC motor 10 is supplied with voltage when either the emergency stop switch 14 is activated or a centrifugal switch 20 is activated when a certain rotational speed of the rotor is exceeded.

Eine Betätigung des Not-Aus-Schalters 14 oder des Fliehkraftschalters 20 bewirkt, daß die Schütze des Eilganggleichstrommotors und die elektrischen Bremsen betätigen, so daß die Rotorblätter 16 über das auf das Blattlager 3 0 wirkende Antriebsritzel 32 in Eilgeschwindigkeit in eine Sturmposition gebracht werden. Bei Erreichen der Sturmposition sprechen die Endschalter 18 an, wodurch die Versorgung des ersten Gleichstrommotors 10 unterbrochen wird.Activating the emergency stop switch 14 or the centrifugal switch 20 causes the contactors of the high-speed DC motor and the electric brakes to operate, so that the rotor blades 16 are brought into a storm position at high speed via the drive pinion 32 acting on the blade bearing 30. When the storm position is reached, the limit switches 18 respond, which interrupts the supply to the first DC motor 10.

Der bei dem dargestellten Ausführungsbeispiel ebenfalls als Gleichstrommotor ausgebildete zweite Motor 2 2 dientThe second motor 2 2 in the illustrated embodiment, which is also designed as a DC motor, serves

BOEHlVtERW BOBiIMERT*··| ·'BOEHlVtERW BOBiIMERT*··| ·'

zur Feinverstellung des Rotors in Abhängigkeit von der jeweiligen Windgeschwindigkeit. Dieser zweite Elektromotor wird in üblicher Weise über eine - nicht dargestellte - elektronische Schaltung gesteuert.for fine adjustment of the rotor depending on the current wind speed. This second electric motor is controlled in the usual way via an electronic circuit (not shown).

Claims (3)

- 1 ■ - A 5109 Ansprüche- 1 ■ - A 5109 Claims 1. Windenergieanlage mit einer Mehrzahl von Rotorblättern, denen jeweils eine deren Verstellung bewirkende Antriebseinheit zugeordnet ist, die aus einem Gleichstrommotor (10), einer diesen speisenden Batterie (12), einem zwischen der Batterie (12) und dem Gleichstrommotor (10) liegenden Not-Aus-Schalter (14) und einem von dem zugehörigen Rotorblatt (16) bei Erreichen der Sturmposition betätigten Endschalter (18) besteht,1. Wind energy plant with a plurality of rotor blades, each of which is assigned a drive unit which effects their adjustment and which consists of a DC motor (10), a battery (12) feeding it, an emergency stop switch (14) located between the battery (12) and the DC motor (10) and a limit switch (18) actuated by the associated rotor blade (16) when the storm position is reached, gekennzeichnet durchmarked by einen parallel zu dem Not-Aus-Schalter liegenden, bei Überschreiten einer vorgegebenen Drehgeschwindigkeit des Rotors den Gleichstrommotor (10) mit Spannung versorgenden Fliehkraftschalter (20).a centrifugal switch (20) arranged parallel to the emergency stop switch, which supplies the DC motor (10) with voltage when a predetermined rotational speed of the rotor is exceeded. 2. Windenergieanlage nach Anspruch 1, gekennzeichnet durch einen zweiten, eine Feinverstellung des zugeordneten Rotorblatts (16) erlaubenden Elektromotor (22).2. Wind energy plant according to claim 1, characterized by a second electric motor (22) allowing a fine adjustment of the associated rotor blade (16). 3. Windenergieanlage nach Anspruch 2, dadurch gekennzeichnet, daß der zweite Elektromotor (22) auf die Welle des ersten Motors (10) wirkt.3. Wind energy plant according to claim 2, characterized in that the second electric motor (22) acts on the shaft of the first motor (10).
DE29722109U 1997-12-16 1997-12-16 Wind turbine Expired - Lifetime DE29722109U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29722109U DE29722109U1 (en) 1997-12-16 1997-12-16 Wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29722109U DE29722109U1 (en) 1997-12-16 1997-12-16 Wind turbine

Publications (1)

Publication Number Publication Date
DE29722109U1 true DE29722109U1 (en) 1998-03-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE29722109U Expired - Lifetime DE29722109U1 (en) 1997-12-16 1997-12-16 Wind turbine

Country Status (1)

Country Link
DE (1) DE29722109U1 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941630C1 (en) * 1999-09-01 2001-03-08 Pvo Engineering Ltd Wind-powered energy plant has coupling belt passed around belt discs associated with blade angle adjustment drives for each rotor blade
DE10009472A1 (en) * 2000-02-28 2001-09-27 Frisia Steuerungen Gmbh Device to adjust angle of rotor blades of wind power generator; has electric motors powered by permanent magnet generators assigned to rotor shaft to rotate rotor blades in their feathered pitch
DE20020232U1 (en) * 2000-11-29 2002-01-17 Siemens AG, 80333 München Wind turbine with auxiliary energy device for adjusting rotor blades in the event of a fault
EP1205662A2 (en) * 2000-11-07 2002-05-15 Johann Kraml Windmill having speed-sensitive control system
WO2002040862A1 (en) * 2000-11-14 2002-05-23 Aloys Wobben Wind energy turbine
DE10127454A1 (en) * 2001-06-07 2002-12-12 Aloys Wobben Switching device with actuation shaft for wind power system, has actuation shaft rigidly connected to rotor blade, actuator with crank section joined to actuation shaft and at least one switch
DE10140793A1 (en) * 2001-08-20 2003-03-06 Gen Electric Device for adjusting the rotor blade of a rotor of a wind turbine
DE10213501A1 (en) * 2002-03-26 2003-10-16 Gen Electric Wind power plant with safety device, safety device, switch arrangement for a safety device and method for operating a wind power plant with safety device
DE10338127A1 (en) * 2003-08-15 2005-03-17 Repower Systems Ag Wind turbine with a rotor
DE10335575A1 (en) * 2003-07-31 2005-03-17 Siemens Ag Emergency operating device for wind power system with adjustable rotor blades has energy storage device that can be used for to supply energy to electric motor and that can be charged up by current converter
DE10116011B4 (en) * 2000-11-14 2005-11-03 Wobben, Aloys, Dipl.-Ing. Wind turbine
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
EP1647708A1 (en) * 2004-10-14 2006-04-19 General Electric Company Pitch drive system for a wind turbine
WO2006096895A1 (en) * 2005-03-18 2006-09-21 Windtec Consulting Gmbh Method and device for braking the rotor of a wind energy plant
EP1744444A1 (en) 2005-07-13 2007-01-17 REpower Systems AG Rotor blade pitch adjustment apparatus
WO2007144146A1 (en) * 2006-06-12 2007-12-21 Repower Systems Ag Wind energy installation with an autonomous energy supply for a blade adjustment device
DE102006049490A1 (en) * 2006-10-17 2008-04-24 Lti Reenergy Gmbh Direct current motor operating control circuit for wind- or water power plant, has stopping brake that is connected either with three-bridge power inverter or emergency operation supply device over emergency operation-brake-switching unit
DE102007016577A1 (en) 2007-04-07 2008-10-09 Robert Bosch Gmbh Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct
DE102007016023A1 (en) 2007-04-03 2008-10-09 Robert Bosch Gmbh Actuating drive for rotor blade of wind power plant, has electro-chemical or electrostatic energy storage accommodating electric motor in case of failure of power supply and provided with electrically drivable heat dissipation device
US7566981B2 (en) 2005-06-29 2009-07-28 Bosch Rexroth Ag Actuating drive and emergency energy supply device
WO2010133444A2 (en) * 2009-05-17 2010-11-25 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
WO2012126558A1 (en) * 2011-03-18 2012-09-27 Nordex Energy Gmbh Wind power plant having a rotor blade and a lightning conductor
WO2012146751A2 (en) * 2011-04-27 2012-11-01 Aktiebolaget Skf Pitch drive system and method
US8558409B2 (en) 2010-07-09 2013-10-15 Vestas Wind Systems A/S High voltage switchgear power supply arrangement for a wind turbine facility
CN101078391B (en) * 2006-05-22 2015-02-11 通用电气公司 Method and system for wind turbine blade movement
DE102015206488A1 (en) * 2015-04-10 2016-10-13 Wobben Properties Gmbh Adjustment device for adjusting a rotor blade of a wind energy plant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221783A1 (en) * 1992-07-03 1994-01-05 Klinger Friedrich Prof Dr Ing Rotor blade setting device for wind power generator - uses distribution gearing between setting motor and each rotor blade adjusted for aerodynamic braking of rotor
DE4344434A1 (en) * 1993-12-24 1995-06-29 Burghardt Hans Joachim Dr Wind-powered machine storm safety device
DE19720025A1 (en) * 1997-05-13 1997-10-09 Fritz Fahrner Drive for angular displacement of wind-power generator rotor blades

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221783A1 (en) * 1992-07-03 1994-01-05 Klinger Friedrich Prof Dr Ing Rotor blade setting device for wind power generator - uses distribution gearing between setting motor and each rotor blade adjusted for aerodynamic braking of rotor
DE4344434A1 (en) * 1993-12-24 1995-06-29 Burghardt Hans Joachim Dr Wind-powered machine storm safety device
DE19720025A1 (en) * 1997-05-13 1997-10-09 Fritz Fahrner Drive for angular displacement of wind-power generator rotor blades

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HAU,Erich: Windkraftanlagen, Springer-Verlag, Berlin, u.a., 1988, S.247,248 *

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941630C1 (en) * 1999-09-01 2001-03-08 Pvo Engineering Ltd Wind-powered energy plant has coupling belt passed around belt discs associated with blade angle adjustment drives for each rotor blade
DE10009472C2 (en) * 2000-02-28 2002-06-13 Norbert Hennchen Device for adjusting the angle of attack of the rotor blades of a wind turbine which are rotatably arranged on a hub of a rotor shaft
DE10009472A1 (en) * 2000-02-28 2001-09-27 Frisia Steuerungen Gmbh Device to adjust angle of rotor blades of wind power generator; has electric motors powered by permanent magnet generators assigned to rotor shaft to rotate rotor blades in their feathered pitch
EP1205662A2 (en) * 2000-11-07 2002-05-15 Johann Kraml Windmill having speed-sensitive control system
EP1205662A3 (en) * 2000-11-07 2002-05-22 Johann Kraml Windmill having speed-sensitive control system
WO2002040862A1 (en) * 2000-11-14 2002-05-23 Aloys Wobben Wind energy turbine
US6939103B2 (en) 2000-11-14 2005-09-06 Aloys Wobben Wind power installation with multiple blade adjusting devices
DE10116011B4 (en) * 2000-11-14 2005-11-03 Wobben, Aloys, Dipl.-Ing. Wind turbine
AU2002214973B2 (en) * 2000-11-14 2005-05-26 Aloys Wobben Wind energy turbine
DE20020232U1 (en) * 2000-11-29 2002-01-17 Siemens AG, 80333 München Wind turbine with auxiliary energy device for adjusting rotor blades in the event of a fault
DE10127454A1 (en) * 2001-06-07 2002-12-12 Aloys Wobben Switching device with actuation shaft for wind power system, has actuation shaft rigidly connected to rotor blade, actuator with crank section joined to actuation shaft and at least one switch
DE10140793A1 (en) * 2001-08-20 2003-03-06 Gen Electric Device for adjusting the rotor blade of a rotor of a wind turbine
US6783326B2 (en) 2001-08-20 2004-08-31 General Electric Company Means for adjusting the rotor blade of a wind power plant rotor
DE10213501A1 (en) * 2002-03-26 2003-10-16 Gen Electric Wind power plant with safety device, safety device, switch arrangement for a safety device and method for operating a wind power plant with safety device
DE10335575A1 (en) * 2003-07-31 2005-03-17 Siemens Ag Emergency operating device for wind power system with adjustable rotor blades has energy storage device that can be used for to supply energy to electric motor and that can be charged up by current converter
DE10335575B4 (en) * 2003-07-31 2005-10-06 Siemens Ag Emergency operating device for adjusting rotor blades for a wind turbine
DE10338127A1 (en) * 2003-08-15 2005-03-17 Repower Systems Ag Wind turbine with a rotor
US7256509B2 (en) 2003-08-15 2007-08-14 Repower Systems Ag Wind power plant comprising a rotor blade adjusting device
DE10338127B4 (en) * 2003-08-15 2007-09-20 Repower Systems Ag Wind turbine with a rotor
DE10338127C5 (en) * 2003-08-15 2015-08-06 Senvion Se 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
EP1647708A1 (en) * 2004-10-14 2006-04-19 General Electric Company Pitch drive system for a wind turbine
WO2006096895A1 (en) * 2005-03-18 2006-09-21 Windtec Consulting Gmbh Method and device for braking the rotor of a wind energy plant
EP1990538A3 (en) * 2005-03-18 2009-11-11 AMSC Windtec GmbH Device for braking a rotor of a wind power system
US7566981B2 (en) 2005-06-29 2009-07-28 Bosch Rexroth Ag Actuating drive and emergency energy supply device
EP1744444A1 (en) 2005-07-13 2007-01-17 REpower Systems AG Rotor blade pitch adjustment apparatus
CN101078391B (en) * 2006-05-22 2015-02-11 通用电气公司 Method and system for wind turbine blade movement
WO2007144146A1 (en) * 2006-06-12 2007-12-21 Repower Systems Ag Wind energy installation with an autonomous energy supply for a blade adjustment device
US8106525B2 (en) 2006-06-12 2012-01-31 Repower Systems Ag Wind energy installation with an autonomous energy supply for a blade adjustment device
DE102006049490A1 (en) * 2006-10-17 2008-04-24 Lti Reenergy Gmbh Direct current motor operating control circuit for wind- or water power plant, has stopping brake that is connected either with three-bridge power inverter or emergency operation supply device over emergency operation-brake-switching unit
US7764029B2 (en) 2006-10-17 2010-07-27 Moog Unna Gmbh Activation current for DC motor having brake and emergency operation supply unit
DE102007016023A1 (en) 2007-04-03 2008-10-09 Robert Bosch Gmbh Actuating drive for rotor blade of wind power plant, has electro-chemical or electrostatic energy storage accommodating electric motor in case of failure of power supply and provided with electrically drivable heat dissipation device
DE102007016577A1 (en) 2007-04-07 2008-10-09 Robert Bosch Gmbh Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct
WO2010133444A2 (en) * 2009-05-17 2010-11-25 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
CN102460197A (en) * 2009-05-17 2012-05-16 Ssb风系统两合公司 Method for examining an electric energy accumulator
WO2010133444A3 (en) * 2009-05-17 2011-04-28 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
US9425716B2 (en) 2009-05-17 2016-08-23 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
US8558409B2 (en) 2010-07-09 2013-10-15 Vestas Wind Systems A/S High voltage switchgear power supply arrangement for a wind turbine facility
WO2012126558A1 (en) * 2011-03-18 2012-09-27 Nordex Energy Gmbh Wind power plant having a rotor blade and a lightning conductor
WO2012146751A2 (en) * 2011-04-27 2012-11-01 Aktiebolaget Skf Pitch drive system and method
WO2012146751A3 (en) * 2011-04-27 2013-04-04 Aktiebolaget Skf Pitch drive system and method
DE102015206488A1 (en) * 2015-04-10 2016-10-13 Wobben Properties Gmbh Adjustment device for adjusting a rotor blade of a wind energy plant
WO2016162421A1 (en) 2015-04-10 2016-10-13 Wobben Properties Gmbh Adjusting device for adjusting a rotor blade of a wind turbine

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Effective date: 19980602

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20010122

R157 Lapse of ip right after 6 years

Effective date: 20040701