IN2009CN03522A - - Google Patents

Download PDF

Info

Publication number
IN2009CN03522A
IN2009CN03522A IN3522CHN2009A IN2009CN03522A IN 2009CN03522 A IN2009CN03522 A IN 2009CN03522A IN 3522CHN2009 A IN3522CHN2009 A IN 3522CHN2009A IN 2009CN03522 A IN2009CN03522 A IN 2009CN03522A
Authority
IN
India
Prior art keywords
negative sequence
sequence system
network
phase
system regulation
Prior art date
Application number
Other languages
English (en)
Inventor
Jens Fortmann
Heinz-Hermann Letas
Original Assignee
Repower Systems Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39362977&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2009CN03522(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Repower Systems Ag filed Critical Repower Systems Ag
Publication of IN2009CN03522A publication Critical patent/IN2009CN03522A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/028Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
    • F03D7/0284Controlling 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0272Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04Automatic control; Regulation
    • F03D7/042Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/048Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/26Arrangements for eliminating or reducing asymmetry in polyphase networks
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00Function
    • F05B2260/82Forecasts
    • F05B2260/821Parameter estimation or prediction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/10Purpose of the control system
    • F05B2270/107Purpose of the control system to cope with emergencies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/30Control parameters, e.g. input parameters
    • F05B2270/335Output power or torque
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/40Type of control system
    • F05B2270/404Type of control system active, predictive, or anticipative
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/50Control logic embodiment by
    • F05B2270/504Control logic embodiment by electronic means, e.g. electronic tubes, transistors or IC's within an electronic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/28The renewable source being wind energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50Arrangements for eliminating or reducing asymmetry in polyphase networks

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)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
IN3522CHN2009 2006-11-20 2007-11-20 IN2009CN03522A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006054870A DE102006054870A1 (de) 2006-11-20 2006-11-20 Windenergieanlage mit Gegensystemregelung und Betriebsverfahren
PCT/EP2007/010026 WO2008061698A2 (de) 2006-11-20 2007-11-20 Windenergieanlage mit gegensystemregelung und betriebsverfahren

Publications (1)

Publication Number Publication Date
IN2009CN03522A true IN2009CN03522A (de) 2015-08-07

Family

ID=39362977

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3522CHN2009 IN2009CN03522A (de) 2006-11-20 2007-11-20

Country Status (9)

Country Link
US (1) US8390138B2 (de)
EP (1) EP2102495B1 (de)
CN (1) CN101600880B (de)
CA (1) CA2670490C (de)
DE (1) DE102006054870A1 (de)
DK (1) DK2102495T3 (de)
ES (1) ES2622135T3 (de)
IN (1) IN2009CN03522A (de)
WO (1) WO2008061698A2 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8698461B2 (en) 2008-09-11 2014-04-15 Woodward Kempen Gmbh Direct power control with component separation
CN102318157B (zh) * 2008-12-12 2014-07-23 维斯塔斯风力系统集团公司 控制方法和装置
DE102008062356B4 (de) * 2008-12-18 2016-12-08 Senvion Gmbh Verfahren und Stromerzeugungsanlage zum Stabilisieren eines Stromverteilungsnetzes nach der Klärung eines Netzfehlers
EP2379880A1 (de) * 2009-01-20 2011-10-26 Powerwind Gmbh Verfahren und schaltungsanordnung zur speisung eines mehrphasigen elektrischen netzes
DE102009040745A1 (de) * 2009-09-08 2011-03-17 Siemens Aktiengesellschaft Verfahren zur Regelung von Stromrichtern und Anordnung zur Durchführung des Verfahrens
US9478987B2 (en) * 2009-11-10 2016-10-25 Siemens Aktiengesellschaft Power oscillation damping employing a full or partial conversion wind turbine
JP5250040B2 (ja) * 2010-03-16 2013-07-31 三菱重工業株式会社 風力発電装置
DE102010029951A1 (de) * 2010-06-10 2011-12-15 Aloys Wobben Verfahren zum Einspeisen elektrischer Energie in ein dreiphasiges Wechselspannungsnetz
WO2012031992A2 (de) * 2010-09-06 2012-03-15 Sma Solar Technology Ag Verfahren zur stabilisierung eines elektrischen versorgungsnetzes
BR112013006534A2 (pt) * 2010-09-28 2016-05-31 Siemens Ag amortecimento de oscilação de energia através de um dispositivo de geração de energia com base em conversor
US9382898B2 (en) 2010-11-10 2016-07-05 Vestas Wind Systems A/S Wind turbine power production using positive and negative sequence current component parameters generated based on operational mode
US20130057236A1 (en) * 2011-09-06 2013-03-07 Che-Wei Hsu Low voltage ride-through control method for grid-connected converter of distributed energy resources
EP2761713B1 (de) 2011-09-30 2018-04-18 Vestas Wind Systems A/S Steuervorrichtung zur dämpfung von schwingungen in einem elektrischen netz
DE102011084910A1 (de) * 2011-10-20 2013-04-25 Wobben Properties Gmbh Verfahren und Vorrichtung zum Einspeisen elektrischen Stroms in ein elektrisches Netz
EP2597746B1 (de) * 2011-11-23 2020-11-18 Siemens Aktiengesellschaft Verfahren zum Steuern der Leistungseingabe in einen HVDC-Übertragungslink
DE102012004225A1 (de) * 2012-03-06 2013-09-12 Rwe Innogy Gmbh Windenergiesystem
CN103457493B (zh) * 2012-05-31 2016-08-03 台达电子工业股份有限公司 一种功率单元旁路时的控制装置及控制方法
DE102012220582A1 (de) 2012-11-12 2014-07-03 Wobben Properties Gmbh Windenergieanlage und Verfahren zum Einspeisen elektrischer Energie
EP2768104A1 (de) * 2013-02-15 2014-08-20 Alstom Technology Ltd Steuerung eines Dreiphasenumrichters bei asymmetrischer Last
US20160041567A1 (en) * 2013-04-05 2016-02-11 Hitachi, Ltd. Gas Turbine Generation System
JP5796620B2 (ja) * 2013-06-19 2015-10-21 ダイキン工業株式会社 コンテナ用冷凍装置
DE102013114729B4 (de) * 2013-12-20 2021-09-30 Sma Solar Technology Ag Wechselrichter und Verfahren zum Detektieren eines Phasenausfalls in einem Energieversorgungsnetz
DK2955808T3 (en) 2014-06-13 2018-12-03 Nordex Energy Gmbh Method for regulating a wind power plant during an asymmetric grid failure
WO2016034178A1 (en) * 2014-09-02 2016-03-10 Vestas Wind Systems A/S A control system for a wind turbine generator
KR101686296B1 (ko) * 2014-09-04 2016-12-28 한국전력공사 전력 계통의 전압 안정도 관리 장치 및 그 방법
ES2900760T3 (es) 2015-12-17 2022-03-18 Vestas Wind Sys As Modulación de salida de planta de energía eólica usando diferentes componentes de modulación de frecuencia para amortiguar oscilaciones de red
EP3236553A1 (de) * 2016-04-20 2017-10-25 Siemens Aktiengesellschaft Verfahren und vorrichtung zur erkennung von phasenausfällen, insbesondere netzfehlern, bei einem umrichter
US10063174B2 (en) * 2016-08-08 2018-08-28 General Electric Company System and method for controlling a negative sequence current in a wind turbine generator
DE102017113006A1 (de) * 2017-06-13 2018-12-13 Wobben Properties Gmbh Verfahren zum Einspeisen elektrischer Leistung in ein elektrisches Versorgungsnetz mittels einer umrichtergeführten Einspeisevorrichtung
EP3813218A1 (de) * 2019-10-25 2021-04-28 Wobben Properties GmbH Verfahren zum einspeisen elektrischer leistung in ein elektrisches versorgungsnetz
EP3840160A1 (de) * 2019-12-16 2021-06-23 Wobben Properties GmbH Verfahren zum steuern einer windenergieanlage
DK4002678T3 (da) 2020-11-16 2024-03-18 Nordex Energy Se & Co Kg Fremgangsmåde til drift af en vindturbine, og en vindturbine
US11626736B2 (en) * 2020-12-07 2023-04-11 General Electric Company Method for controlling negative-sequence current for grid-forming controls of inverter-based resources
CA3231100A1 (en) * 2021-09-08 2023-03-16 Ali Azizi System and method for determining active and reactive currents during asymmetrical low-voltage ride through (lvrt) conditions

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206598A1 (de) * 1982-02-19 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Anordnung zur messtechnischen erfassung und ueberwachung von unsymmetrien in rotierenden elektrischen induktionsmaschinen
SE452822B (sv) 1984-02-07 1987-12-14 Asea Ab Forfarande for bestemning av atminstone en av plusfoljdstrommarna och/eller en av minusfoljdsstrommarna samt anordning for genomforande av det nemnda forfarandet
JPH04281399A (ja) 1991-03-05 1992-10-06 Toshiba Corp 発電機逆相電流抑制装置
JPH04308426A (ja) 1991-04-05 1992-10-30 Toshiba Corp 発電機保護装置
US5270640A (en) 1992-04-23 1993-12-14 The Penn State Research Foundation Method for incipient failure detection in electric machines
US5786708A (en) * 1996-04-01 1998-07-28 General Electric Company Self-tuning and compensating turn fault detector
US6128583A (en) 1996-05-20 2000-10-03 Crane Nuclear, Inc. Motor stator condition analyzer
DE19620906C2 (de) 1996-05-24 2000-02-10 Siemens Ag Windenergiepark
JPH1042588A (ja) 1996-07-22 1998-02-13 Hitachi Ltd 電動機の制御装置および可変速発電機
US6201715B1 (en) 2000-03-28 2001-03-13 Honeywell International Inc. Synchronous frame regulation to extract a positive sequence component of a line voltage
WO2002062000A2 (en) 2001-02-01 2002-08-08 Northeastern University Adaptive controller for d-statcom in the stationary reference frame to compensate for reactive and harmonic distortion under unbalanced conditions
DE10136974A1 (de) 2001-04-24 2002-11-21 Aloys Wobben Verfahren zum Betreiben einer Windenergieanlage
US6583996B2 (en) 2001-11-14 2003-06-24 Ballard Power Systems Corporation Method and system for detecting a negative sequence for three phase grid-connected inverter systems
US6919650B2 (en) 2002-05-31 2005-07-19 Ballard Power Systems Corporation Hybrid synchronization phase angle generation method
US7071579B2 (en) 2002-06-07 2006-07-04 Global Energyconcepts,Llc Wind farm electrical system
DE10228062A1 (de) * 2002-06-17 2004-01-08 Universität Ulm Verfahren und Messeinrichtung zum Erfassen einer Gegenspannung oder eines Gegenstroms in einem mehrphasigen Drehstromsystem
US7233129B2 (en) 2003-05-07 2007-06-19 Clipper Windpower Technology, Inc. Generator with utility fault ride-through capability
CN1312819C (zh) * 2004-03-11 2007-04-25 裴迪生 相序自适应对称分量无功功率补偿装置
US6977827B2 (en) 2004-03-22 2005-12-20 American Superconductor Corporation Power system having a phase locked loop with a notch filter
JP2006025549A (ja) 2004-07-08 2006-01-26 Tokyo Electric Power Co Inc:The 電源装置およびそれが備えられた電力系統
GB2420456A (en) 2004-11-23 2006-05-24 Areva T & D Uk Ltd Generator control having grid imbalance detector
ES2296483B1 (es) 2005-11-21 2009-03-01 Ingeteam Technology, S.A. Un sistema de control y proteccion ante faltas simetricas y asimetricas, para generadores de tipo asincrono.
US7456695B2 (en) * 2006-01-10 2008-11-25 General Electric Company Apparatus, method and computer program product for tracking information in an electric grid
US7423412B2 (en) 2006-01-31 2008-09-09 General Electric Company Method, apparatus and computer program product for injecting current
MX2009002659A (es) 2006-10-02 2009-06-05 Vestas Wind Sys As Metodo para operar una turbina eolica conectada a una red electrica durante perturbaciones de la red electrica, turbina eolica y parque eolico.

Also Published As

Publication number Publication date
CN101600880B (zh) 2014-06-25
WO2008061698A2 (de) 2008-05-29
EP2102495A2 (de) 2009-09-23
DE102006054870A1 (de) 2008-06-12
CA2670490C (en) 2012-08-28
CA2670490A1 (en) 2008-05-29
WO2008061698A3 (de) 2008-11-06
ES2622135T3 (es) 2017-07-05
DK2102495T3 (en) 2017-04-24
CN101600880A (zh) 2009-12-09
US20100052322A1 (en) 2010-03-04
US8390138B2 (en) 2013-03-05
EP2102495B1 (de) 2017-01-11

Similar Documents

Publication Publication Date Title
IN2009CN03522A (de)
US8987939B2 (en) Hybrid power system with variable speed genset
EP2060786A3 (de) Temperaturkontrolle eines elektrischen Generators einer Windturbine mittels Änderung des Leistungsfaktors
CA2443613A1 (en) Method for operating a wind energy plant
WO2007077001A3 (en) Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network
AU2012350817B2 (en) Method for operating a wind turbine or a wind farm
JP4369450B2 (ja) 電力供給システム
DE502004011883D1 (de) R netzstützung und verfahren dazu
DE602007009966D1 (de) Windkraftsystem und Betriebsverfahren dafür
CA2598069A1 (en) Power generating system
DK1907697T3 (da) Effektregulering i en vindpark
MX2009007076A (es) Un sistema de compensacion de baja tension para una turbina de viento de velocidad variable que tiene una maquina excitadora y un convertidor de energia no conectados con la red de transporte de energia electrica.
WO2008004126A3 (en) High voltage direct current link transmission system for variable speed wind turbine
WO2009103505A3 (de) Windkraftanlage mit umrichterregelung
EP1925817A3 (de) System zur Erzeugung elektrischer Energie aus erneuerbaren Energiequellen
NZ610076A (en) Adjustment device for adjusting an angle of incidence of a rotor blade of a wind power plant
US8853875B2 (en) Wind power generation system and method for controlling excitation synchronous generator thereof
US9634596B2 (en) Hybrid power generation with variable voltage flux
WO2008128680A3 (de) Windenergieanlage mit blindleistungsvorgabe
US20160006254A1 (en) Serial Hybrid Microgrid with PPSA-mediated interface to Genset and to Non-Dispatchable Power
Kumar et al. Grid interfaced solar PV based water pumping using brushless DC motor drive
WO2010069456A3 (de) Stationäre energiegewinnungsanlage mit einer steuereinrichtug und verfahren zur steuerung derselben
EP2056445A3 (de) Elektrische Motorsteuerung mit Verstärkerumrichter
Guo et al. Research of the megawatt level variable speed constant frequency wind power unit control system.
WO2008027378A3 (en) Power system rating converter