JP5276709B2 - 風力発電装置 - Google Patents
風力発電装置 Download PDFInfo
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- JP5276709B2 JP5276709B2 JP2011500411A JP2011500411A JP5276709B2 JP 5276709 B2 JP5276709 B2 JP 5276709B2 JP 2011500411 A JP2011500411 A JP 2011500411A JP 2011500411 A JP2011500411 A JP 2011500411A JP 5276709 B2 JP5276709 B2 JP 5276709B2
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- 238000004804 winding Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 241000219793 Trifolium Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/007—Control circuits for doubly fed generators
-
- 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
- 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
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
- F03D7/0284—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
-
- 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
- F05B2270/10711—Purpose of the control system to cope with emergencies in particular sudden load loss applying a low voltage ride through method
-
- 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
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
-
- 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
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/321—Wind directions
-
- 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
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/328—Blade pitch angle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/30—Staggered disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/45—Special adaptation of control arrangements for generators for motor vehicles, e.g. car alternators
-
- 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)
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Eletrric Generators (AREA)
Description
1)発電機出力が瞬時に低下するため、過速度が発生する。
2)発電機に過渡的に大電流が流れる。
3)補機の電動機にも過渡的に大電流が流れる。
例えば、非特許文献1には、過速度の発生を抑えるために、ブレードのピッチコントロールを利用することが開示されている(非特許文献1の180頁 6行目、および181頁の14行目を参照)。
Power Supply)からドライブ回路等に電源を供給することが開示されている。
Vladislav Akhmatov, "Variable-speed Wind Turbineswith Doubly-fed Induction Generators Part II: Power system Stability", WindEngineering Vol.26, No.3, 2002, pp. 171-188 Eric M. Sisa, "Power Outages And Power DipRide- Through", IEEE Annual Texile, Fiber and Film Industry Conference, 1995,pp. 37-43
主ブレーカの耐電流性能が補機ブレーカの耐電流性能よりも優れているとは、例えば、主ブレーカの電流許容値が補機ブレーカの電流許容値よりも大きく設定されていることをいう。
5 発電機
13 電力系統
14 能動整流器
15 DCバス
16 インバータ
17 AC−DC−ACコンバータ
19 主制御部
21 コンバータ駆動制御部
22 ブレード制御部
24 トランス
25 補機
27 クローバ回路
30 主ブレーカ
40 補機ブレーカ
図1は、本実施形態に係る風力発電装置の全体構成を示したブロック図である。風力発電装置1は、図1に示されるように、タワー2と、タワー2の上端に設けられたナセル3とを備えている。ナセル3は、ヨー方向に旋回可能であり、ナセル旋回機構4によって所望の方向に向けられる。ナセル3には、発電機5とギア6とが搭載されている。発電機5のロータは、ギア6を介して風車ロータ7に接合されている。
上記主ブレーカ30、補機ブレーカ40は、例えば、タワー2の下方に配置されている連系盤(図示略)の中に配置されている。
補機ブレーカ40は、低電圧事象に流れる電流を許容し、かつ、補機25が備えるモータの許容電流を超えない範囲の耐電流性能を有している。
主ブレーカ30は、補機ブレーカ40の耐電流性能よりも優れており、かつ、発電機5の許容電流を超えない範囲の耐電流性能を有している。
従って、図3に示される電圧低下パターンに対応するためには、少なくとも定格に対して5.5倍の過電流が流れた場合でも解列しない程度の耐電流性能を、補機ブレーカ40が有している必要がある。
図7に示されるように、補機ブレーカ40の最大許容電流は、モータの許容電流に比べて低く設定されており、かつ、低電圧発生時のモータ過渡電流に比べて高く設定されている。
また、図示していないが、主ブレーカの耐電流特性は、発電機の許容電流よりも小さく、補機ブレーカ40よりも高い設定とされている。
図7における低電圧発生時のモータ過渡電流は、例えば、上述した過渡解析を行った結果を示したものでもよいし、また、上記過渡解析を行わずに発電機モータの3相短絡時の電流を計算することから求めることとしてもよい。
更に、コンバータ駆動制御部21及びブレード制御部22についても、低電圧事象が発生している期間において通常の制御を継続して行うので、低電圧事象のために新たな制御ロジックを用意することなく、従来と同様の構成によってブレード8のピッチ角制御、AC−DC−ACコンバータ17の制御を行うことが可能となる。
Claims (3)
- 発電機と、
前記発電機と電力系統とを接続する電力線に設けられた主ブレーカと、
補機と該電力系統とを接続する電力線に設けられた補機ブレーカと
を備え、
前記補機ブレーカは、低電圧事象に流れる電流を許容し、かつ、前記補機が備えるモータの許容電流を超えない範囲の耐電流性能を有し、
前記主ブレーカは、前記補機ブレーカの耐電流性能よりも優れており、かつ、前記発電機の許容電流を超えない範囲の耐電流性能を有し、
前記低電圧事象とは、百ms以上数百ms未満の範囲に渡って系統電圧が0Vになり、かつ、系統電圧の落ち込みから復帰までに数秒を要する事象であり、
前記補機が備えるモータは、前記低電圧事象に流れる電流よりも高い電流を許容する風力発電装置。 - 複数のブレードと、
前記複数のブレードのピッチ角を制御するブレード制御部と
を具備し、
前記ブレード制御部は、作動可能な駆動電力が供給されている期間において、前記ブレードのピッチ角制御を行う請求項1に記載の風力発電装置。 - 前記発電機ロータの出力を三相交流電力から直流電力に変換するコンバータと、
前記コンバータから出力される直流電力を3相交流電力に変換するインバータと、
前記コンバータおよび前記インバータを制御する制御部と
を備え、
前記制御部は、前記発電機のロータ電流または前記コンバータにより変換された直流電圧を監視し、該ロータ電流または前記直流電圧が予め設定されている電流閾値または電圧閾値を超えた場合に、前記コンバータおよび前記インバータの作動を停止させる請求項1または請求項2に記載の風力発電装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/053014 WO2010095240A1 (ja) | 2009-02-20 | 2009-02-20 | 風力発電装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2010095240A1 JPWO2010095240A1 (ja) | 2012-08-16 |
JP5276709B2 true JP5276709B2 (ja) | 2013-08-28 |
Family
ID=42633541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011500411A Active JP5276709B2 (ja) | 2009-02-20 | 2009-02-20 | 風力発電装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8796872B2 (ja) |
EP (1) | EP2400653A4 (ja) |
JP (1) | JP5276709B2 (ja) |
KR (1) | KR101247886B1 (ja) |
CN (1) | CN102132486B (ja) |
AU (1) | AU2009340724A1 (ja) |
BR (1) | BRPI0917313A2 (ja) |
CA (1) | CA2733100A1 (ja) |
WO (1) | WO2010095240A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011120523A2 (en) * | 2010-03-31 | 2011-10-06 | Vestas Wind Systems A/S | Method of operating a wind turbine, wind turbine, wind turbine controlling system, and processing system |
JP5942393B2 (ja) * | 2011-11-18 | 2016-06-29 | 株式会社日立製作所 | 回転電機システムまたは風力発電システム。 |
KR101390306B1 (ko) * | 2012-03-14 | 2014-04-29 | 삼성중공업 주식회사 | 풍력 발전기 |
DE102012006259A1 (de) | 2012-03-29 | 2013-10-02 | Repower Systems Se | Chopperverstärkter Umrichter für Windenergieanlagen |
US20130270823A1 (en) * | 2012-04-17 | 2013-10-17 | Clipper Windpower, Llc | Method for Enhancing Low Voltage Ride Through Capability on a Wind Turbine |
US8669669B1 (en) * | 2012-09-13 | 2014-03-11 | General Electric Company | Voltage control in a doubly-fed induction generator wind turbine system |
US9677540B2 (en) | 2012-11-29 | 2017-06-13 | General Electric Company | System and method for providing yaw backup to a wind farm |
JP6037803B2 (ja) * | 2012-11-30 | 2016-12-07 | 三菱重工業株式会社 | 風車及びその制御方法並びに風力発電システム |
US10107260B2 (en) * | 2015-11-19 | 2018-10-23 | General Electric Company | Wind turbine auxiliary circuit control |
ES2688089A1 (es) * | 2017-04-28 | 2018-10-30 | Gamesa Innovation & Tecnology S.L. | Método de control para una planta eólica, y planta eólica asociada |
US11698053B2 (en) * | 2020-12-02 | 2023-07-11 | General Electric Renovables Espana, S.L. | System and method for controlling a wind turbine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5266910A (en) * | 1975-12-01 | 1977-06-02 | Hitachi Ltd | Magnetic exciting device of synchronous generator |
JPH0928032A (ja) * | 1995-07-13 | 1997-01-28 | Toshiba Eng Co Ltd | 可変速揚水発電システムの運転装置 |
JP2002044859A (ja) * | 2000-07-24 | 2002-02-08 | Mitsubishi Electric Corp | 発電機の過励磁防止装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132230B1 (ja) * | 1970-11-20 | 1976-09-11 | ||
US4256972A (en) * | 1979-05-10 | 1981-03-17 | Beckwith Electric Co., Inc. | Power transfer relay circuitry and method of phase measurement |
DE3247439A1 (de) * | 1982-12-22 | 1984-07-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Digitalelektronischer ueberstromausloeser |
US5095221A (en) * | 1989-11-03 | 1992-03-10 | Westinghouse Electric Corp. | Gas turbine control system having partial hood control |
DE10133881A1 (de) * | 2001-07-12 | 2003-01-30 | Siemens Ag | Schutzanordnung und Schutzverfahren für eine Strombahn |
US6921985B2 (en) * | 2003-01-24 | 2005-07-26 | General Electric Company | Low voltage ride through for wind turbine generators |
SE0303574D0 (sv) * | 2003-12-23 | 2003-12-23 | Abb Research Ltd | Elictric power network |
JP4269941B2 (ja) * | 2004-01-08 | 2009-05-27 | 株式会社日立製作所 | 風力発電装置およびその制御方法 |
US7423412B2 (en) * | 2006-01-31 | 2008-09-09 | General Electric Company | Method, apparatus and computer program product for injecting current |
JP4736871B2 (ja) | 2006-03-10 | 2011-07-27 | 株式会社日立製作所 | 二次励磁発電システム用電力変換装置 |
US7425771B2 (en) * | 2006-03-17 | 2008-09-16 | Ingeteam S.A. | Variable speed wind turbine having an exciter machine and a power converter not connected to the grid |
US7541784B2 (en) * | 2006-05-26 | 2009-06-02 | Endurance Wind Power | Dual voltage switching in power generation |
US7576443B2 (en) * | 2006-12-15 | 2009-08-18 | General Electric Company | Method and apparatus for generating electric power |
WO2008077974A1 (es) * | 2006-12-22 | 2008-07-03 | Wind To Power System, S.L. | Generador asíncrono de doble alimentación |
US7622815B2 (en) * | 2006-12-29 | 2009-11-24 | Ingeteam Energy, S.A. | Low voltage ride through system for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid |
JP5198791B2 (ja) | 2007-05-07 | 2013-05-15 | 株式会社日立製作所 | 風力発電システム及びその制御方法及びこれを用いた風力発電所 |
JP2008306776A (ja) * | 2007-06-05 | 2008-12-18 | Hitachi Ltd | 風力発電システムおよびその制御方法 |
JP4801779B2 (ja) * | 2007-12-14 | 2011-10-26 | 三菱重工業株式会社 | 風力発電装置 |
US8093741B2 (en) * | 2010-10-29 | 2012-01-10 | General Electric Company | Method and system for providing increased turbine output for doubly fed induction generator |
-
2009
- 2009-02-20 AU AU2009340724A patent/AU2009340724A1/en not_active Abandoned
- 2009-02-20 WO PCT/JP2009/053014 patent/WO2010095240A1/ja active Application Filing
- 2009-02-20 EP EP09840347.0A patent/EP2400653A4/en not_active Withdrawn
- 2009-02-20 CN CN200980132814.8A patent/CN102132486B/zh not_active Expired - Fee Related
- 2009-02-20 US US13/058,694 patent/US8796872B2/en active Active
- 2009-02-20 JP JP2011500411A patent/JP5276709B2/ja active Active
- 2009-02-20 KR KR1020117003619A patent/KR101247886B1/ko not_active IP Right Cessation
- 2009-02-20 BR BRPI0917313A patent/BRPI0917313A2/pt not_active IP Right Cessation
- 2009-02-20 CA CA2733100A patent/CA2733100A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5266910A (en) * | 1975-12-01 | 1977-06-02 | Hitachi Ltd | Magnetic exciting device of synchronous generator |
JPH0928032A (ja) * | 1995-07-13 | 1997-01-28 | Toshiba Eng Co Ltd | 可変速揚水発電システムの運転装置 |
JP2002044859A (ja) * | 2000-07-24 | 2002-02-08 | Mitsubishi Electric Corp | 発電機の過励磁防止装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2009340724A1 (en) | 2010-08-26 |
CA2733100A1 (en) | 2010-08-26 |
KR101247886B1 (ko) | 2013-03-26 |
EP2400653A4 (en) | 2015-09-30 |
US20110193345A1 (en) | 2011-08-11 |
BRPI0917313A2 (pt) | 2015-11-17 |
KR20110031499A (ko) | 2011-03-28 |
CN102132486A (zh) | 2011-07-20 |
EP2400653A1 (en) | 2011-12-28 |
JPWO2010095240A1 (ja) | 2012-08-16 |
CN102132486B (zh) | 2014-07-02 |
WO2010095240A1 (ja) | 2010-08-26 |
US8796872B2 (en) | 2014-08-05 |
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