DE102005007471A1 - Shadow switching off device for wind power plant uses calculating unit to determine switching on and off interval - Google Patents

Shadow switching off device for wind power plant uses calculating unit to determine switching on and off interval Download PDF

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Publication number
DE102005007471A1
DE102005007471A1 DE102005007471A DE102005007471A DE102005007471A1 DE 102005007471 A1 DE102005007471 A1 DE 102005007471A1 DE 102005007471 A DE102005007471 A DE 102005007471A DE 102005007471 A DE102005007471 A DE 102005007471A DE 102005007471 A1 DE102005007471 A1 DE 102005007471A1
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Germany
Prior art keywords
shadow
switching
power plant
wind power
calculating unit
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Withdrawn
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DE102005007471A
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German (de)
Inventor
Thi Bui-Ngoc
Hannes Weber
Till Hoffmann
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Individual
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Individual
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Priority to DE102005007471A priority Critical patent/DE102005007471A1/en
Publication of DE102005007471A1 publication Critical patent/DE102005007471A1/en
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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
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/20—Arrangements for avoiding shadow flicker
    • 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
    • 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
    • F05B2270/40—Type of control system
    • F05B2270/404—Type of control system active, predictive, or anticipative
    • 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
    • F05B2270/70—Type of control algorithm
    • F05B2270/708—Type of control algorithm with comparison tables
    • 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

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  • 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)

Abstract

The shadow switching off device for a wind power plant prevents local residents being disturbed by pulsating shadows. It makes use of a calculating unit to perform this function. A sensor is used to supply data for calculating the rotor setting. Another sensor is used to allow for the intensity of the shadow.

Description

Die Erfindung betrifft eine Vorrichtung entsprechend dem Oberbegriff des Anspruchs I.The The invention relates to a device according to the preamble of claim I.

Werden Windkraftanlagen in der Nähe von bewohnten Gebieten betrieben, müssen sie abgeschaltet werden, falls der pulsierende Schatten des sich drehenden Rotors auf das Grundstück eines Anliegers fällt.Become Wind turbines nearby operated by inhabited areas, they must be shut down, if the pulsing shadow of the spinning rotor on the Property a rival falls.

Es ist bekannt, basierend auf Schattengutachten Datenbänke zu erstellen, um die Windkraftanlage auf Verlangen der Anlieger bei einem solchen Schattenfall abzuschalten.It is known to create databases based on shadow reports, around the wind turbine at the request of the residents in such a shadow case off.

Beim Erstellen der Datenbank kann allerdings nicht auf sich ständig ändernde Attribute Rücksicht genommen werden. Deshalb muss man immer vom schlechtesten Fall ausgehen um die Rechtslage nicht zu verletzen und die Windkraftanlage muss z.T. unnötigerweise ausgeschaltet werden.At the However, creating the database can not be constantly changing Attributes consideration be taken. That's why you always have to start from the worst case in order not to violate the legal situation and the wind turbine must z.T. unnecessarily turned off.

Eine weitere Möglichkeit ist es, an den betroffenen Gebäuden Sensoren zum Erfassen des Schattens anzubringen.A another possibility is it, at the affected buildings Attach sensors to detect the shadow.

Diese Vorgehensweise hat allerdings den Nachteil, dass eine große Anzahl von Sensoren benötigt wird, um sämtliche Flächen abdecken zu können.These However, the procedure has the disadvantage that a large number needed by sensors is going to all surfaces to be able to cover.

Außerdem sind extrem lange Datenwege zu bewältigen.Besides, they are to handle extremely long data paths.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die nach Möglichkeit alle Attribute berücksichtigt und damit größtmögliche Ausbeute der Windenergie erlaubt.task The invention is to provide a device, where possible all attributes considered and thus the greatest possible yield Wind energy allowed.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Anspruchs I gelöst.These The object is achieved by a device having the features of the claim I solved.

Mit dieser Vorrichtung kann die Windkraftanlage wesentlich gezielter abgeschaltet werden, da auch die Lichtverhältnisse und die Rotorstellung berücksichtigt werden.With This device can the wind turbine much more targeted be turned off, as well as the lighting conditions and the rotor position considered become.

Mit ihr kann außerdem auch zwischen Schattenwurf auf Fenster- oder Wandfläche unterschieden werden.With you can as well also be distinguished between shadow on window or wall surface.

Dadurch wird eine höhere Laufzeit erzielt.Thereby will be a higher Runtime achieved.

An einer Windkraftanlage, die in bekannter Weise aufgebaut ist, wird ein Windrichtungssensor angebracht, um die Rotorstellung zu ermitteln. Alternativ kann die Rotorstellung auch der Steuereinheit der Windkraftanlage entnommen werden.At a wind turbine, which is constructed in a known manner is a wind direction sensor mounted to determine the rotor position. Alternatively, the rotor position and the control unit of the wind turbine be removed.

Abhängig von Uhrzeit, Datum und Standort wird die Position der Sonne errechnet. Alternativ dazu kann die Sonnenposition auch aus einer Datenbank gelesen werden.Depending on Time, date and location the position of the sun is calculated. Alternatively, the sun position can also be from a database to be read.

Eine weitere Möglichkeit besteht darin, die Sonnenposition mit einem geeigneten Sensor zu ermitteln.A another possibility is to use the sun position with a suitable sensor determine.

Abhängig von Rotor- und Sonnenposition wird der Schattenwurf berechnet und geprüft, ob ein Grundstück bzw. Gebäude davon betroffen ist.Depending on Rotor and sun position, the shadow is calculated and checked whether a plot or building affected.

Die soeben genannte Rechnung muss nur ausgeführt werden, wenn auf Grund der Lichtverhältnisse ein Schlagschatten entstehen kann.The just mentioned invoice only needs to be executed if due the lighting conditions a drop shadow may arise.

Die Lichtverhältnisse müssen mit einem geeigneten Sensor ermittelt werden.The lighting conditions have to be determined with a suitable sensor.

Dieser Sensor könnte aus Helligkeitssensoren bestehen, deren Einfallsbereich zum Teil abgeschattet wird und deren Helligkeitswerte verglichen werden.This Sensor could consist of brightness sensors whose incidence area in part is shaded and their brightness values are compared.

Zur Verfeinerung des Systems kann zwischen relevanten und unrelevanten Flächen unterschieden werden.to Refinement of the system can be between relevant and irrelevant surfaces be differentiated.

Abhängig von den oben entstehenden Ergebnissen wird die Windkraftanlage ab- bzw. angeschaltet.Depending on The wind energy plant will depend on the results above. turned on.

Claims (6)

Vorrichtung zum Abschalten einer Windkraftanlage bei für Anwohner störendem pulsierendem Schatten, dadurch gekennzeichnet, dass eine Recheneinheit verwendet wird.Device for switching off a wind power plant disturbing for residents with pulsating shadow, characterized in that a computing unit is used. Vorrichtung nach Anspruch I, dadurch gekennzeichnet, dass ein Sensor verwendet wird, um in der Berechnung auf die Rotorstellung eingehen zu können.Device according to claim 1, characterized in that that a sensor is used to calculate in the rotor position to be able to enter. Vorrichtung nach Anspruch I und/oder Anspruch II, dadurch gekennzeichnet, dass ein Sensor verwendet wird, um die Intensität des Schattens berücksichtigen zu können.Device according to claim I and / or claim II, characterized in that a sensor is used to control the intensity of the shadow consider to be able to. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass eine Recheneinheit zur Laufzeit den Schattenwurf berechnet.Device according to one of the preceding claims, characterized in that a Re unit calculated the shadow cast at runtime. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass Schattenwurf auf relevanten bzw. nicht relevanten Flächen gesondert betrachtet wird.Device according to one of the preceding claims, characterized characterized in that shadow cast on relevant or not relevant surfaces is considered separately. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass Rotorstellung und momentane Leistung der Windkraftanlage für die Entscheidung über das Abschalten der Windkraftanlage berücksichtigt werden.Device according to one of the preceding claims, characterized characterized in that the rotor position and momentary power of the wind turbine for the decision on the Shut down the wind turbine are taken into account.
DE102005007471A 2005-02-18 2005-02-18 Shadow switching off device for wind power plant uses calculating unit to determine switching on and off interval Withdrawn DE102005007471A1 (en)

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DE102005007471A DE102005007471A1 (en) 2005-02-18 2005-02-18 Shadow switching off device for wind power plant uses calculating unit to determine switching on and off interval

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DE102005007471A DE102005007471A1 (en) 2005-02-18 2005-02-18 Shadow switching off device for wind power plant uses calculating unit to determine switching on and off interval

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2028371A1 (en) 2007-08-24 2009-02-25 Fachhochschule Kiel Device and method for measuring repetitive shading
WO2009030252A1 (en) * 2007-09-03 2009-03-12 Vestas Wind Systems A/S Shadow control of wind turbines
WO2012107195A1 (en) * 2011-02-11 2012-08-16 Repower Systems Se Method for operating a wind power installation and wind power installation
EP2554840A1 (en) * 2011-08-03 2013-02-06 Alstom Wind, S.L.U. Shadow flicker measurement system, wind turbine comprising such a system, and method using such a system
CN103590975A (en) * 2013-11-23 2014-02-19 大连尚能科技发展有限公司 Environment-friendly wind turbine generator set control system and method
DE102017007656A1 (en) * 2017-08-15 2019-02-21 Senvion Gmbh Control device for a wind turbine and method for operating a wind turbine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2028371A1 (en) 2007-08-24 2009-02-25 Fachhochschule Kiel Device and method for measuring repetitive shading
DE102007040036A1 (en) * 2007-08-24 2009-03-12 Fachhochschule Kiel Apparatus and method for measuring a recurring shadow
DE102007040036B4 (en) * 2007-08-24 2011-10-27 Fachhochschule Kiel Apparatus for measuring a recurring shadow
WO2009030252A1 (en) * 2007-09-03 2009-03-12 Vestas Wind Systems A/S Shadow control of wind turbines
US8310075B2 (en) 2007-09-03 2012-11-13 Vestas Wind Systems A/S Shadow control of wind turbines
CN101796294B (en) * 2007-09-03 2013-04-03 维斯塔斯风力***有限公司 Shadow control of wind turbines
WO2012107195A1 (en) * 2011-02-11 2012-08-16 Repower Systems Se Method for operating a wind power installation and wind power installation
EP2554840A1 (en) * 2011-08-03 2013-02-06 Alstom Wind, S.L.U. Shadow flicker measurement system, wind turbine comprising such a system, and method using such a system
WO2013017646A1 (en) * 2011-08-03 2013-02-07 Alstom Wind, S.L.U. Shadow flicker measurement system, wind turbine comprising such a system, and method using such a system
CN103590975A (en) * 2013-11-23 2014-02-19 大连尚能科技发展有限公司 Environment-friendly wind turbine generator set control system and method
CN103590975B (en) * 2013-11-23 2017-03-29 大连尚能科技发展有限公司 A kind of environmentally friendly control system of wind turbines and method
DE102017007656A1 (en) * 2017-08-15 2019-02-21 Senvion Gmbh Control device for a wind turbine and method for operating a wind turbine

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