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WO2005078278A1 - Procede d'exploitation d'une eolienne et eolienne conçue de maniere correspondante - Google Patents

Procede d'exploitation d'une eolienne et eolienne conçue de maniere correspondante Download PDF

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Publication number
WO2005078278A1
WO2005078278A1 PCT/DE2004/000552 DE2004000552W WO2005078278A1 WO 2005078278 A1 WO2005078278 A1 WO 2005078278A1 DE 2004000552 W DE2004000552 W DE 2004000552W WO 2005078278 A1 WO2005078278 A1 WO 2005078278A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
power plant
wind power
converter
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.)
Ceased
Application number
PCT/DE2004/000552
Other languages
German (de)
English (en)
Inventor
Andreas Gevers
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.)
HELGERS FINANZBERATUNG GmbH
Original Assignee
HELGERS FINANZBERATUNG 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 HELGERS FINANZBERATUNG GmbH filed Critical HELGERS FINANZBERATUNG GmbH
Publication of WO2005078278A1 publication Critical patent/WO2005078278A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/18—Combinations of wind motors with apparatus storing energy storing heat
    • 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
    • F05B2270/1071—Purpose of the control system to cope with emergencies in particular sudden load loss
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a wind power plant according to the preamble of claim 8
  • the gear unit may wear prematurely, with mechanical influences being primarily responsible for this premature wear, for example sudden gusts of wind, which an adjustment of the angle of attack of the rotors cannot correspond to quickly enough.
  • the invention is based on the object of improving a generic method and of specifying a corresponding wind power plant such that the longest possible service life of the wind power plant can be achieved with the least possible effort.
  • the invention proposes to switch off the generator in a controlled manner in certain operating states, such as the aforementioned power failure.
  • the invention is based on the surprising consideration that damage to the gearbox is not caused solely by the mechanical action of the rotor exposed to the wind, but also by the other side of the gear
  • Wind turbine can occur, namely from the electrical side:
  • the rotor shaft of the generator is short-circuited to protect the converter.
  • the generator has a considerably increased rotational resistance in the shortest possible time, so that mechanical impacts are accordingly introduced into the transmission.
  • the self-protection mechanism provided to protect the converter therefore effectively protects the converter, but ultimately endangers the gearbox of the wind turbine.
  • the present proposal can be compared, for example, with the use of an uninterruptible power supply in wind turbines to protect the transmission, generator, converter and / or other components from mechanical or electrical overload.
  • the Generate generated electrical energy that cannot be dissipated into the power grid in a controlled manner in any other way, instead of short-circuiting the generator rotor shaft.
  • Such consumption can take place, for example, by means of heating resistors, for example so-called “dump loads” known to the person skilled in the art.
  • These can be designed as heating elements which are arranged, for example, in the ground to protect against overheating and for reasons of heat dissipation.
  • This controlled derivation of the energy generated in the generator by the continuing rotary movement of the rotor prevents the self-protection mechanism of the converter from responding, so that inverters without such a self-protection mechanism can be used cost-effectively if the proposed safety module is used.
  • the safety module leads to the dissipation of the electrical energy still generated after a power failure, so that power failures with a duration in the range of fractions of a second can be bridged without risk.
  • the safety module similar to the aforementioned uninterruptible power supply, enables the generator to be "shut down" from its operating state that generates electrical energy to an idle state last for a long time, for example in regions with a particularly unstable power supply, and in which cases the introduction of electrical energy generated by the generator into the intended consumers could lead to the destruction of the consumers, for example to heating of the heating elements, or in which cases sufficiently large energy stores would be uneconomical to absorb the corresponding amounts of energy.
  • shutdown of the generator into an idle state can take place until the rotor of the wind power plant comes to a standstill so that the generator no longer generates electricity.
  • minimal operation of the generator can also be provided as an idle state Amount of energy is generated, which can be easily dissipated firstly and secondly allows electrical monitoring or control circuits to be maintained.
  • the rotor is rotated at a "minimal speed", so that the rotor then starts up and is started up again the wind turbine is facilitated since the rotor does not have to be rotated from a standstill while overcoming corresponding breakaway torques.
  • the proposed safety module can therefore have a circuit that not only triggers the dissipation of the energy that is not to be dissipated into the power grid, but also triggers this rotor blade adjustment and, if necessary, initiates further measures to protect the converter and the transmission in particular.
  • a wind turbine designates a whole, which has a rotor 2, with a hub 3 and rotor blades 4.
  • the rotor blades 4 have servomotors with which the
  • these servomotors are supplied with electrical energy in a manner known per se by an energy store, such as by an accumulator.
  • a gear 6 is arranged as well as a generator 7 which, in a manner known per se, is driven indirectly by the rotor 2 and, at a speed which is different from the rotor speed, directly by the gear 6 and generates electrical current.
  • the wind turbine 1 has a converter 8.
  • This converter 8 can be designed without a self-protection mechanism known per se, or there can be such a self-protection mechanism which is, however, switched off.
  • the wind turbine 1 is connected to a power network by a connection 9, such as a public one
  • a safety module 10 which is arranged between the converter 8 and the connection 9 in terms of circuitry in that the safety module 10 protects both the converter 8 and components of the wind power plant 1 upstream in the converter 8 , including the generator 7 and the transmission 6.
  • the safety module 10 firstly ensures that the electrical energy still generated after the failure of the network by the generator 7 is discharged in a controlled manner without, for example, the generator 7 having to be short-circuited, and furthermore the security module 10 ensures that the power supply continues for a prolonged period Generator 7 is shut down in a controlled state, ie in its Power is throttled or reduced to zero, for example by appropriate adjustment of the rotor blades 4.
  • a sufficient amount of energy is made available by the security module 10 in the power network, even in the millisecond range, or is used by the security module, which amount of energy enables the wind turbine 1 to be shut down and shut down in a coordinated manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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 un procédé permettant d'exploiter une éolienne, selon lequel un générateur est entraîné par l'intermédiaire d'un mécanisme d'entraînement et l'énergie électrique produite par le générateur est injectée dans un réseau d'alimentation en courant par l'intermédiaire d'un convertisseur. Il est prévu, selon l'invention, que dans des conditions de fonctionnement déterminées, comme en cas de panne du réseau de distribution, l'énergie produite par le générateur soit évacuée de manière contrôlée. En outre, il est prévu, selon l'invention, pour une éolienne équipée d'un mécanisme d'entraînement, d'un générateur et d'un convertisseur, ainsi que d'un raccord pour relier l'éolienne à un réseau d'alimentation en courant, un module de sécurité présentant un accumulateur d'énergie ou un consommateur électrique, ainsi qu'un circuit électronique. En cas de panne du réseau d'alimentation en courant, ledit circuit électronique régule la dérivation de l'énergie, afin que l'énergie produite par le générateur parvienne dans l'accumulateur d'énergie ou jusqu'au consommateur électrique.
PCT/DE2004/000552 2004-02-13 2004-03-18 Procede d'exploitation d'une eolienne et eolienne conçue de maniere correspondante Ceased WO2005078278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007461.5 2004-02-13
DE102004007461A DE102004007461A1 (de) 2004-02-13 2004-02-13 Verfahren zum Betreiben einer Windkraftanlage, und dementsprechend ausgestaltete Windkraftanlage

Publications (1)

Publication Number Publication Date
WO2005078278A1 true WO2005078278A1 (fr) 2005-08-25

Family

ID=34813402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/000552 Ceased WO2005078278A1 (fr) 2004-02-13 2004-03-18 Procede d'exploitation d'une eolienne et eolienne conçue de maniere correspondante

Country Status (2)

Country Link
DE (1) DE102004007461A1 (fr)
WO (1) WO2005078278A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2353799C1 (ru) * 2007-09-13 2009-04-27 Закрытое акционерное общество "Научно-производственное объединение "Ветротехника" Способ работы автономной ветроэлектрической станции
EP1819023A3 (fr) * 2006-01-19 2013-04-17 General Electric Company Système et procédé de délestage de charge d'éolienne
US8742609B2 (en) 2009-06-30 2014-06-03 Vestas Wind Systems A/S Power management during grid faults

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2341820B1 (es) * 2007-01-31 2011-05-13 GAMESA INNOVATION & TECHNOLOGY, S.L. Un metodo para eliminar el impacto de los retrocesos en la multiplicadora de un aerogenerador.
DE102009017244A1 (de) * 2009-04-09 2010-10-14 Nordex Energy Gmbh Verfahren zum Betreiben einer Windenergieanlage bei fehlender Verfügbarkeit eines externen Versorgungsnetzes und Windenergieanlage zur Ausführung des Verfahrens
US9574548B2 (en) 2011-12-08 2017-02-21 Vestas Wind Systems A/S Method and system for controlled shutdown of wind turbines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511807A (en) * 1982-04-20 1985-04-16 Northern Engineering Industries Plc Electrical generator control system
EP1128064A2 (fr) * 2000-02-28 2001-08-29 Norbert Hennchen Dispositif électrique pour changer l'angle d'attaque des aubes d'une éolienne
DE10138399A1 (de) * 2001-08-04 2003-02-27 Aloys Wobben Verfahren zum Betreiben einer Windenergieanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931484A1 (de) * 1979-08-03 1981-02-26 Hako Werke Hans Koch & Sohn Windkraftanlage
DE8716960U1 (de) * 1987-12-24 1988-05-11 Brockmeyer, Werner, 4402 Greven Vollautomatisches Windkraftwerk mit Energiespeicherung
DE19651364A1 (de) * 1996-12-10 1998-06-25 Nordex En Anlagen Gmbh Vorrichtung zur Verbesserung der Netzverträglichkeit von Windkraftanlagen mit Asynchrongeneratoren
DE19955586A1 (de) * 1999-11-18 2001-06-13 Siemens Ag Windkraftanlage
DE20020232U1 (de) * 2000-11-29 2002-01-17 Siemens AG, 80333 München Windkraftanlage mit Hilfsenergieeinrichtung zur Verstellung von Rotorblättern in einem Fehlerfall
DE10105892A1 (de) * 2001-02-09 2002-09-12 Daimlerchrysler Rail Systems Windenergieanlage und Verfahren zum Betreiben einer Windenergieanlage
DE10232423A1 (de) * 2002-07-17 2004-01-29 Ge Wind Energy Gmbh Verfahren zum Betreiben einer Windenergieanlage und Windenergieanlage zum Ausführen derartiger Verfahren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511807A (en) * 1982-04-20 1985-04-16 Northern Engineering Industries Plc Electrical generator control system
EP1128064A2 (fr) * 2000-02-28 2001-08-29 Norbert Hennchen Dispositif électrique pour changer l'angle d'attaque des aubes d'une éolienne
DE10138399A1 (de) * 2001-08-04 2003-02-27 Aloys Wobben Verfahren zum Betreiben einer Windenergieanlage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1819023A3 (fr) * 2006-01-19 2013-04-17 General Electric Company Système et procédé de délestage de charge d'éolienne
EP2947745A1 (fr) * 2006-01-19 2015-11-25 General Electric Company Système de délestage de charge d'éolienne
RU2353799C1 (ru) * 2007-09-13 2009-04-27 Закрытое акционерное общество "Научно-производственное объединение "Ветротехника" Способ работы автономной ветроэлектрической станции
US8742609B2 (en) 2009-06-30 2014-06-03 Vestas Wind Systems A/S Power management during grid faults

Also Published As

Publication number Publication date
DE102004007461A1 (de) 2005-09-01

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