WO2002044561A1 - Eolienne comprenant un dispositif d'energie auxiliaire destine au reglage de pales de rotor en cas de defaillance - Google Patents

Eolienne comprenant un dispositif d'energie auxiliaire destine au reglage de pales de rotor en cas de defaillance Download PDF

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Publication number
WO2002044561A1
WO2002044561A1 PCT/DE2001/004342 DE0104342W WO0244561A1 WO 2002044561 A1 WO2002044561 A1 WO 2002044561A1 DE 0104342 W DE0104342 W DE 0104342W WO 0244561 A1 WO0244561 A1 WO 0244561A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
power plant
wind power
shaft
auxiliary generator
Prior art date
Application number
PCT/DE2001/004342
Other languages
German (de)
English (en)
Inventor
Thomas Götze
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2002044561A1 publication Critical patent/WO2002044561A1/fr

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
    • F03D7/022—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
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • 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
    • 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
    • F05B2270/107—Purpose of the control system to cope with emergencies
    • 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

  • the invention relates to a wind turbine with a With ⁇ stuffs for adjusting the rotor blades about their longitudinal axis, which are arranged on a hub of a rotor shaft.
  • Another possible mechanical load of a wind turbine is the possible loss of the electrical load by the main generator. This can be caused, for example, by the failure of the power grid, the converter or even the main generator itself. This can make it a very quick one Run up of the rotor shaft due to the missing counter torque of the main generator. The result would be mechanical overloading of the wind power plant due to impermissibly high speeds.
  • the rotor blades or only one is usually turned into a so-called “flag position”. Either the front edge or the rear edge of the rotor blade profile is rotated in the wind, so that no more driving buoyancy can arise on the rotor blade profile.
  • the device for adjusting the rotor blades into the flag position is to be carried out as safe in the technical sense. It must therefore be ensured that e.g. An energy supply for the adjusting drives of the rotor blades is guaranteed even in the event of a power failure. For this reason, it is known to use an independent auxiliary power device in the form of an accumulator, which in the event of a fault is connected directly to the DC servomotors of the actuators. When the flag position is reached, the actuators are separated from the accumulator via limit switches.
  • the invention is therefore based on the object of specifying a wind power plant which, in the event of a fault, can move the rotor blades into a safe flag position without static electrical energy store, in particular without an accumulator.
  • the object is achieved with the wind power plant specified in the claims with the means according to the invention for adjusting the rotor blades.
  • Advantageous configurations of the means are contained in the subclaims.
  • FIG. 2 shows a basic circuit diagram of the means according to the invention according to the exemplary wind turbine in FIG. 1,
  • FIG. 3 shows a further exemplary construction of a wind power plant with means according to the invention for adjusting rotor blades
  • FIG. 4 shows a basic circuit diagram of the means according to the invention in accordance with the exemplary wind turbine in FIG. 3,
  • FIG. 5 shows an exemplary construction of an auxiliary generator as part of the means according to the invention for adjusting rotor blades according to FIG. 1, and
  • FIG. 6 shows a further exemplary construction of an auxiliary generator as part of the means according to the invention for adjusting rotor blades according to FIG. 3
  • FIG. 1 is used to explain the exemplary construction of a wind power plant with the inventive means for adjusting rotor blades RB.
  • a hub N with two adjustable rotor blades RB attached by way of example is shown in the left part of FIG.
  • the rotor blades RB can be adjusted in the rotational directions DR shown about the longitudinal axis LA.
  • the beginning Flag position FS described is shown in dashed lines.
  • bearings L on the hub N for the adjustable accommodation of the rotor blades RB can be seen in the example in FIG.
  • the rotor blades RB are mechanically connected, for example, each with an actuator SA for adjusting the rotor blades RB.
  • the actuator SA contains an example of a servomotor SA.
  • several actuators SA can also be used for a rotor blade RB.
  • An actuator SA can also contain several actuators SM.
  • the hub N is connected to a rotor shaft RW, which is designed as a horizontal hollow shaft in the example in FIG. This is rotatably fixed by two bearing blocks LB, which are firmly connected to a support system TR1.
  • the support system TR1 represents a rigid mechanical connection to the nacelle body, which is rotatably attached to the mast of the wind turbine.
  • the rotor shaft RW with an input of the main transmission G, with a set of slip rings SR and at the shaft end WE with a
  • Auxiliary generator HG connected.
  • a main generator GEN is connected to the corresponding translated output of the main transmission G via a generator shaft GW.
  • all rotating parts or masses RM of the wind power plant connected to the rotor shaft RW of the wind power plant are shown in dashed lines in the example of FIG.
  • the two servomotors SM are connected to a switching device US via motor lines ML. This is also connected to two converters WR and by means of two electrical connecting lines HL, SL to the auxiliary generator HG and to an accident detection device SI.
  • the auxiliary generator HG also includes an auxiliary transmission OG, shown in dashed lines, whose housing is fastened to the support system TR 1.
  • the auxiliary gearbox OG increases the internal number of revolutions of the auxiliary generator HG, especially in the case of wind turbines with slowly rotating rotor shafts, from approx 50 rpm.
  • a further connecting line NL is also laid in the rotor shaft RW.
  • This connecting line NL connects the two inverters WR to a power supply NE for the power supply of the inverters WR. Furthermore, for the electrical decoupling of the two connecting lines NL, SL laid in the main shaft, these are guided via slip rings SR.
  • the two WR inverters are electrically isolated from the NE power supply, e.g. a conventional 50Hz / 400V three-phase network.
  • the fault detection device SI switches the switchover device US in such a way that the inverters WR can feed the servomotors SM via the motor lines ML.
  • the WR inverters also receive setpoints for the controlled or regulated adjustment of the rotor blades RB for optimal setting of the wind power plant.
  • the associated connection lines are e.g. not shown for a tax calculator.
  • the accident detection device SI switches the switchover device US in the event of an error FF.
  • the connecting line HL of the auxiliary generator HG is connected to the motor lines ML, so that the latter can supply the servomotors SM with the electrical energy converted from the kinetic energy of the rotating masses RM.
  • the actuators SM of the actuators SA can then rotate the rotor blades RB of the wind turbine into a safe flag position FS for an actuating process.
  • auxiliary generator HG can advantageously be designed, for example, as a permanently excited brushless 3-phase synchronous generator HG. It is compact and almost free of wear and maintenance. In normal operation of the wind power plant, ie in idle mode, it draws almost no mechanical power from the rotor shaft RW.
  • auxiliary generator HG it is possible to use corresponding pairings of auxiliary generator HG and servomotors SM. It is thus possible, in the event of a fault FF, to connect a direct current generator HG to direct current motors SM, or an alternating current generator HG to alternating current or induction motors SM.
  • FIG. 2 shows the corresponding basic circuit diagram of the means according to the invention in accordance with the exemplary wind power plant in FIG. 1.
  • Three 3-phase inverters WR for supplying three actuators SA can be seen in the middle of the image.
  • the inverters WR are also connected to the power supply NE via a 3-phase connecting line NL, which is guided over a set of slip rings SR.
  • the switch position SP2 is set in the switchover device US.
  • the converters WR are thus connected on the output side to the servomotors SM via the motor lines ML.
  • each inverter WR receives an angle setpoint WS1-3 for individual control of the servomotors SM.
  • a generator-typical number of revolutions can advantageously be achieved in the case of wind turbines with low rotational speeds of approximately 20 to 50 rpm.
  • FIG. 3 shows a further exemplary construction of a wind power plant with means according to the invention for adjusting rotor blades RB.
  • the shaft end of the rotor shaft RW is fed to a main gearbox Gl, which can be designed, for example, as a planetary or spur gear.
  • a generator shaft Gl, which drives a main generator GEN1 is connected to the high-ratio gearbox-side output. The transmission ratio of the main transmission Gl is selected so that a sufficiently high number of revolutions for the main generator GEN1 can be achieved.
  • the gear ratio is usually around 50, so that depending on the number of revolutions of the rotor shaft RW, a number of revolutions of the main generator GEN1 of approximately 500-1000 rpm is achieved.
  • the right half of FIG. 3 shows how an auxiliary generator HG is connected to the shaft end WE of the generator shaft GW1.
  • the rotor shaft LF1 is connected to a support system TR2. This is shown in detail in FIG. 6.
  • Another difference between the embodiment of FIG. 3, for example of FIG. 1, is that the connecting lines HL1 can no longer be laid in the rotor shaft RW due to the different rotational speeds of the rotor and generator shaft RW; These are advantageously fed separately to the rotor shaft RW via a further set of slip rings SR2.
  • the advantage of the arrangement of the auxiliary generator HG1 at the shaft end WE of the generator shaft GW1 is that the generator shaft GW1 can have a significantly higher number of revolutions than the rotor shaft RW due to the main gear Gl connected therebetween. This makes it possible to dispense with that
  • auxiliary generator HG1 The structure of the auxiliary generator HG1 is simplified c ⁇ r tv> P 1 P 1 o c ⁇ o C ⁇ 0 C ⁇

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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)
  • Control Of Eletrric Generators (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne une éolienne comprenant des moyens permettant de régler les pales de rotor (RB) autour de l'axe longitudinal (LA). Ces pales présentent au moins un mécanisme de réglage (SA) doté d'un moteur de commande (SM) destiné au réglage d'au moins une pale de rotor (RB), au moins un générateur auxiliaire (HG) destiné au découplage de l'énergie électrique issue de l'énergie cinétique de l'arbre rotor (RW), un dispositif de détection de défaillance (SI) actif en cas de défaillance (FF) (SI), et un dispositif de commutation (US). En cas d'activation, le dispositif de commutation cède l'énergie électrique du générateur auxiliaire au moins à un moteur de commande pour le réglage d'au moins une pale de rotor dans une mise en drapeau (FS). Cela présente l'avantage de permettre l'utilisation de moteurs de commande pratiquement sans usure ni entretien, et ce sans dispositif d'énergie auxiliaire statique.
PCT/DE2001/004342 2000-11-29 2001-11-19 Eolienne comprenant un dispositif d'energie auxiliaire destine au reglage de pales de rotor en cas de defaillance WO2002044561A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20020232U DE20020232U1 (de) 2000-11-29 2000-11-29 Windkraftanlage mit Hilfsenergieeinrichtung zur Verstellung von Rotorblättern in einem Fehlerfall
DE20020232.4 2000-11-29

Publications (1)

Publication Number Publication Date
WO2002044561A1 true WO2002044561A1 (fr) 2002-06-06

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Country Status (2)

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WO (1) WO2002044561A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128064A2 (fr) * 2000-02-28 2001-08-29 Norbert Hennchen Dispositif électrique pour changer l'angle d'attaque des aubes d'une éolienne
WO2005116445A1 (fr) * 2004-05-18 2005-12-08 Nordex Energy Gmbh Procede pour commander et reguler un eolienne
WO2006010190A1 (fr) * 2004-07-30 2006-02-02 Gerald Hehenberger Chaîne de transmission d'éolienne
WO2006105901A1 (fr) * 2005-04-08 2006-10-12 Ssb-Antriebstechnik Gmbh & Co. Kg Installation a energie eolienne
WO2007012487A1 (fr) * 2005-07-26 2007-02-01 Repower Systems Ag Eolienne a systemes de calage individuels
US7256509B2 (en) 2003-08-15 2007-08-14 Repower Systems Ag Wind power plant comprising a rotor blade adjusting device
JP2007538191A (ja) * 2004-05-18 2007-12-27 ノルデックス・エナジー・ゲーエムベーハー 補助発電機を有する風力発電設備およびその制御方法
US7952232B2 (en) 2008-03-13 2011-05-31 General Electric Company Wind turbine energy storage and frequency control
CN102287331A (zh) * 2011-07-27 2011-12-21 国电联合动力技术有限公司 一种变桨距风电机组紧急顺桨触发系统及方法
US9422919B2 (en) 2010-03-10 2016-08-23 Ssb Wind Systems Gmbh & Co. Kg Redundant pitch system

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DE10213501A1 (de) * 2002-03-26 2003-10-16 Gen Electric Windkraftanlage mit Sicherungsvorrichtung, Sicherungsvorrichtung, Schalteranordnung für eine Sicherungsvorrichtung und Verfahren zum Betreiben einer Windkraftanlage mit Sicherungsvorrichtung
US6921985B2 (en) 2003-01-24 2005-07-26 General Electric Company Low voltage ride through for wind turbine generators
DE10335575B4 (de) * 2003-07-31 2005-10-06 Siemens Ag Notbetriebseinrichtung zur Verstellung von Rotorblättern für eine Windkraftanlage
DE102004005169B3 (de) * 2004-02-02 2005-11-03 Repower Systems Ag Rotorblattverstellungsvorrichtung
DE102004007461A1 (de) * 2004-02-13 2005-09-01 Helgers Finanzberatung Gmbh Verfahren zum Betreiben einer Windkraftanlage, und dementsprechend ausgestaltete Windkraftanlage
DE102005030709A1 (de) * 2005-06-29 2007-01-04 Bosch Rexroth Ag Stellantrieb und Notenergieversorgungseinrichtung
PT1744444E (pt) 2005-07-13 2007-11-23 Repower Systems Ag Dispositivo de orientação das pás de um rotor
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DE102005038558A1 (de) * 2005-08-12 2007-02-15 Repower Systems Ag Verfahren zum Betrieb eines Windenergieanlagenparks sowie Windenergieanlagenpark
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DE102006057213A1 (de) * 2006-12-01 2008-06-05 Robert Bosch Gmbh Elektrische Antriebsvorrichtung
DE102007006966A1 (de) * 2007-02-13 2008-08-14 Robert Bosch Gmbh Antriebseinrichtung zum Antreiben von mehreren Achsen
US20100259045A1 (en) * 2007-10-15 2010-10-14 Suzlon Energy Gmbh Wing Energy Installation with Enhanced Overvoltage Protection
CN107399411B (zh) 2008-04-23 2019-06-04 原理动力有限公司 浮动风力涡轮机平台的压载控制系统及竖直对准调节方法
ES2345645B1 (es) * 2008-06-09 2011-07-13 GAMESA INNOVATION & TECHNOLOGY, S.L. Instalacion de energia eolica y procedimiento de modificacion del paso de pala en una instalacion de energia eolica.
DE102008051329B4 (de) 2008-10-15 2011-04-21 Suzlon Energy Gmbh Windenergieanlage mit erhöhtem Überspannungsschutz
DE102009005960A1 (de) * 2009-01-23 2010-08-05 Avantis Ltd. Polrad einer Windenergieanlage
DE102009044036A1 (de) * 2009-09-17 2011-04-14 Ssb Wind Systems Gmbh & Co. Kg Windkraftanlage
FR2956881B1 (fr) * 2010-02-26 2012-05-04 Vergnet Sa Systeme de commande-controle de l'angle de calage des pales d'une eolienne
AU2011366415A1 (en) * 2011-04-25 2013-11-14 Hitachi, Ltd. Wind power generation system, device using wind power generation system, and method for operating same
EP2872774B1 (fr) * 2012-07-02 2016-05-25 Vestas Wind Systems A/S Alimentation électrique vers le moyeu d'éolienne
EP2781736A1 (fr) * 2013-03-19 2014-09-24 Alstom Renovables España, S.L. Éoliennes et procédé
TR201808860T4 (tr) 2013-05-20 2018-07-23 Principle Power Inc Açık denizde sabit olmayan rüzgar türbini platformlarının kontrol edilmesi için sistem ve yöntem.
AU2015339391B2 (en) 2014-10-27 2019-07-25 Principle Power, Inc. Connection system for array cables of disconnectable offshore energy devices
DE102015206488A1 (de) * 2015-04-10 2016-10-13 Wobben Properties Gmbh Verstelleinrichtung zum Verstellen eines Rotorblattes einer Windenergieanlage
ES2866937T3 (es) 2015-06-19 2021-10-20 Principle Power Inc Estructura de plataforma de turbina eólica flotante con transferencia optimizada de cargas de viento y oleaje
JP7100190B2 (ja) * 2018-07-20 2022-07-12 受勲 李 風力及び自給動力発電装置
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Cited By (16)

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Publication number Priority date Publication date Assignee Title
EP1128064A3 (fr) * 2000-02-28 2005-01-26 Norbert Hennchen Dispositif électrique pour changer l'angle d'attaque des aubes d'une éolienne
EP1128064A2 (fr) * 2000-02-28 2001-08-29 Norbert Hennchen Dispositif électrique pour changer l'angle d'attaque des aubes d'une éolienne
US7256509B2 (en) 2003-08-15 2007-08-14 Repower Systems Ag Wind power plant comprising a rotor blade adjusting device
CN101094985B (zh) * 2004-05-18 2010-05-05 诺德克斯能源有限公司 用于控制和调节风能设备的方法
WO2005116445A1 (fr) * 2004-05-18 2005-12-08 Nordex Energy Gmbh Procede pour commander et reguler un eolienne
JP2007538191A (ja) * 2004-05-18 2007-12-27 ノルデックス・エナジー・ゲーエムベーハー 補助発電機を有する風力発電設備およびその制御方法
US7566982B2 (en) 2004-05-18 2009-07-28 Nordex Energy Gmbh Method for controlling and adjusting a wind turbine
WO2006010190A1 (fr) * 2004-07-30 2006-02-02 Gerald Hehenberger Chaîne de transmission d'éolienne
US7816798B2 (en) 2004-07-30 2010-10-19 Amsc Windtec Gmbh Power train for a wind power plant
US7560824B2 (en) 2004-07-30 2009-07-14 Windtech GmbH Power train for a wind power plant
WO2006105901A1 (fr) * 2005-04-08 2006-10-12 Ssb-Antriebstechnik Gmbh & Co. Kg Installation a energie eolienne
WO2007012487A1 (fr) * 2005-07-26 2007-02-01 Repower Systems Ag Eolienne a systemes de calage individuels
US8487460B2 (en) 2005-07-26 2013-07-16 Repower Systems Se Wind energy installation with individual pitch devices
US7952232B2 (en) 2008-03-13 2011-05-31 General Electric Company Wind turbine energy storage and frequency control
US9422919B2 (en) 2010-03-10 2016-08-23 Ssb Wind Systems Gmbh & Co. Kg Redundant pitch system
CN102287331A (zh) * 2011-07-27 2011-12-21 国电联合动力技术有限公司 一种变桨距风电机组紧急顺桨触发系统及方法

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