Overview of control systems for the operation of DFIGs in wind energy applications

Doubly-Fed Induction Generators (DFIGs), often organized in wind parks, are the most important generators used for variable speed wind energy generation. This paper reviews the control systems for the operation of DFIGs in wind energy applications. Control systems for connections to balanced or unbalanced grids, and sensorless control.

[1]  M. Y. Uctug,et al.  Modelling and output power optimisation of a wind turbine driven double output induction generator , 1994 .

[2]  Heng Nian,et al.  Direct Active and Reactive Power Regulation of DFIG Using Sliding-Mode Control Approach , 2010, IEEE Transactions on Energy Conversion.

[3]  X. Roboam,et al.  Comparative study of maximum power strategy in wind turbines , 2004, 2004 IEEE International Symposium on Industrial Electronics.

[4]  J. Clare,et al.  Wind–Diesel Generation Using Doubly Fed Induction Machines , 2008, IEEE Transactions on Energy Conversion.

[5]  José M. Espí,et al.  Wind Turbine Generation System With Optimized DC-Link Design and Control , 2013, IEEE Transactions on Industrial Electronics.

[6]  Longya Xu,et al.  Design and control of a high-efficiency Doubly-Fed Brushless machine for wind power generator application , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[7]  Junji Tamura,et al.  Participation of facts in stabilizing DFIG with crowbar during grid fault based on grid codes , 2011, 2011 IEEE GCC Conference and Exhibition (GCC).

[8]  Holmes,et al.  Cycloconverter-exited divided-winding doubly-fed machine as a wind-power convertor , 1984 .

[9]  Yongzheng Zhang,et al.  Rotor Position Phase-Locked Loop for Decoupled $P\hbox{-}Q$ Control of DFIG for Wind Power Generation , 2009, IEEE Transactions on Energy Conversion.

[10]  J. M. Kauffmann,et al.  Double-fed induction machine: converter optimisation and field oriented control without position sensor , 1998 .

[11]  M.I. Valla,et al.  Sensorless control of stand-alone Doubly Fed induction generator with an adaptive observer , 2008, 2008 IEEE International Symposium on Industrial Electronics.

[12]  Matteo Felice Iacchetti.  Adaptive Tuning of the Stator Inductance in a Rotor-Current-Based MRAS Observer for Sensorless Doubly Fed Induction-Machine Drives , 2011, IEEE Transactions on Industrial Electronics.

[13]  Liangzhong Yao,et al.  Novel Integration of Wind Generator-Energy Storage Systems Within Microgrids , 2012, IEEE Transactions on Smart Grid.

[14]  Shuhui Li,et al.  Control of DFIG Wind Turbine With Direct-Current Vector Control Configuration , 2012, IEEE Transactions on Sustainable Energy.

[15]  Hong-Hee Lee,et al.  An improved control method for DFIG-based wind system supplying unbalanced stand-alone loads , 2009, 2009 IEEE International Symposium on Industrial Electronics.

[16]  J. Clare,et al.  Control of a switched reluctance generator for variable-speed wind energy applications , 2005, IEEE Transactions on Energy Conversion.

[17]  N.R.N. Idris,et al.  A New Torque and Flux Controller for Direct Torque Control of Induction Machines , 2006, IEEE Transactions on Industry Applications.

[18]  I. Erlich,et al.  Dynamic Behavior of DFIG-Based Wind Turbines during Grid Faults , 2007, 2007 Power Conversion Conference - Nagoya.

[19]  Roberto Cárdenas,et al.  Stability Analysis of a Wind Energy Conversion System Based on a Doubly Fed Induction Generator Fed by a Matrix Converter , 2009, IEEE Transactions on Industrial Electronics.

[20]  M. Yamamoto,et al.  Active and reactive power control of doubly-fed wound rotor induction generator , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[21]  Wei-Ting Lin,et al.  Enhancing Frequency Response Control by DFIGs in the High Wind Penetrated Power Systems , 2011, IEEE Transactions on Power Systems.

[22]  Feng Sun,et al.  Comparison of reactive power compensation strategy of wind farm based on optislip wind turbines , 2009, 2009 International Conference on Sustainable Power Generation and Supply.

[23]  Roberto Cárdenas,et al.  Sensorless Control of Doubly-Fed Induction Generators Using a Rotor-Current-Based MRAS Observer , 2008, IEEE Transactions on Industrial Electronics.

[24]  Jin-Ming Lin,et al.  Coordinated frequency regulation by doubly fed induction generator-based wind power plants , 2012 .

[25]  Chee Wei Tan,et al.  A study of maximum power point tracking algorithms for wind energy system , 2011, 2011 IEEE Conference on Clean Energy and Technology (CET).

[26]  S. L. Ho,et al.  Direct control algorithm for doubly fed induction generators in weak grids , 2009 .

[27]  Mansour Mohseni,et al.  Fault ride-through capability enhancement of doubly-fed induction wind generators , 2011 .

[28]  J. Clare,et al.  MRAS observer for sensorless control of standalone doubly fed induction generators , 2005, IEEE Transactions on Energy Conversion.

[29]  E. Gubia,et al.  Control of Doubly Fed Induction Generator under symmetrical voltage dips , 2008, 2008 IEEE International Symposium on Industrial Electronics.

[30]  Joachim Holtz,et al.  Sensorless Control of Induction Machines - With or Without Signal Injection? , 2006, IEEE Trans. Ind. Electron..

[31]  Boon-Teck Ooi,et al.  Strategies to Smooth Wind Power Fluctuations of Wind Turbine Generator , 2007, IEEE Transactions on Energy Conversion.

[32]  Wei-Jen Lee,et al.  Effects of Voltage Unbalance and System Harmonics on the Performance of Doubly Fed Induction Wind Generators , 2008, 2008 IEEE Industry Applications Society Annual Meeting.

[33]  Roberto Cárdenas,et al.  Experimental Validation of a Space-Vector-Modulation Algorithm for Four-Leg Matrix Converters , 2011, IEEE Transactions on Industrial Electronics.

[34]  H. Oraee,et al.  The Brushless Doubly-Fed Machine Vector Model in the rotor flux oriented reference frame , 2008, 2008 34th Annual Conference of IEEE Industrial Electronics.

[35]  G Pannell,et al.  Minimum-Threshold Crowbar for a Fault-Ride-Through Grid-Code-Compliant DFIG Wind Turbine , 2010, IEEE Transactions on Energy Conversion.

[36]  S. M. Islam,et al.  Transient Control of DFIG-Based Wind Power Plants in Compliance With the Australian Grid Code , 2012, IEEE Transactions on Power Electronics.

[37]  S. Arnalte,et al.  Direct Power Control Applied to Doubly Fed Induction Generator Under Unbalanced Grid Voltage Conditions , 2008, IEEE Transactions on Power Electronics.

[38]  J. Clare,et al.  Control strategy of doubly fed induction generators for a wind diesel energy system , 2002, IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.

[39]  Lie Xu,et al.  Direct active and reactive power control of DFIG for wind energy generation , 2006, IEEE Transactions on Energy Conversion.

[40]  Hui Li,et al.  An Improved Control Strategy of Limiting the DC-Link Voltage Fluctuation for a Doubly Fed Induction Wind Generator , 2008, IEEE Transactions on Power Electronics.

[41]  Gordon Arthur Smith.  A static scherbius system of induction motor speed control. , 1975 .

[42]  Longya Xu,et al.  Torque and reactive power control of a doubly-fed induction machine by position sensorless scheme , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[43]  J.A. Ferreira,et al.  Operation of Grid-Connected DFIG Under Unbalanced Grid Voltage Condition , 2009, IEEE Transactions on Energy Conversion.

[44]  Geza Joos,et al.  Assessment of inertial potential of variable-speed wind turbines , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[45]  Marco Liserre,et al.  Overview of Multi-MW Wind Turbines and Wind Parks , 2011, IEEE Transactions on Industrial Electronics.

[46]  Gonzalo Abad,et al.  Experimental evaluation of wind turbines maximum power point tracking controllers , 2006 .

[47]  何塞伊格纳西奥·略伦特冈萨雷斯,et al.  Method for operation of a converter system , 2006 .

[48]  Liangzhong Yao,et al.  Novel Integration of DFIG-Based Wind Generators Within Microgrids , 2011, IEEE Transactions on Energy Conversion.

[49]  B. Khaki,et al.  Contribution of DFIG wind turbines to system frequency control , 2009, 2009 International Conference on Sustainable Power Generation and Supply.

[50]  Raja Ayyanar,et al.  Control strategy to mitigate the impact of reduced inertia due to doubly fed induction generators on large power systems , 2011, 2011 IEEE Power and Energy Society General Meeting.

[51]  Kit Po Wong,et al.  Quantum-Inspired Particle Swarm Optimization for Power System Operations Considering Wind Power Uncertainty and Carbon Tax in Australia , 2012, IEEE Transactions on Industrial Informatics.

[52]  G. Tapia,et al.  Wind generation optimisation algorithm for a doubly fed induction generator , 2005 .

[53]  Yu Lan,et al.  Comparison of Control Strategy for Double-fed Induction Generator (DFIG) , 2011, 2011 Third International Conference on Measuring Technology and Mechatronics Automation.

[54]  Richard M. Stephan,et al.  Vector control methods for induction machines: an overview , 2001, IEEE Trans. Educ..

[55]  Wilfried Hofmann,et al.  Modeling and Ride-Through Control of Doubly Fed Induction Generators During Symmetrical Voltage Sags , 2011, IEEE Transactions on Energy Conversion.

[56]  C. Feltes,et al.  High voltage ride-through of DFIG-based wind turbines , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[57]  R. J. Polge,et al.  Induction Motor Speed Control with Static Inverter in the Rotor , 1966 .

[58]  J. Clare,et al.  MRAS Observers for Sensorless Control of Doubly-Fed Induction Generators , 2008, IEEE Transactions on Power Electronics.

[59]  Paul-Etienne Vidal,et al.  Dual Direct Torque Control of Doubly Fed Induction Machine , 2007, IEEE Transactions on Industrial Electronics.

[60]  J.A. Ferreira,et al.  Wind turbines emulating inertia and supporting primary frequency control , 2006, IEEE Transactions on Power Systems.

[61]  Nelson Sadowski,et al.  Analysis and Test Results of a Brushless Doubly Fed Induction Machine With Rotary Transformer , 2012, IEEE Transactions on Industrial Electronics.

[62]  I. Erlich,et al.  Negative sequence control of DFG based wind turbines , 2011, 2011 IEEE Power and Energy Society General Meeting.

[63]  Gerardo Escobar,et al.  Fixed-Reference-Frame Phase-Locked Loop for Grid Synchronization Under Unbalanced Operation , 2011, IEEE Transactions on Industrial Electronics.

[64]  Lie Xu,et al.  Dynamic Modeling and Control of DFIG-Based Wind Turbines Under Unbalanced Network Conditions , 2007, IEEE Transactions on Power Systems.

[65]  S. M. Islam,et al.  Impacts of Symmetrical and Asymmetrical Voltage Sags on DFIG-Based Wind Turbines Considering Phase-Angle Jump, Voltage Recovery, and Sag Parameters , 2011, IEEE Transactions on Power Electronics.

[66]  Frede Blaabjerg,et al.  Overview of Control and Grid Synchronization for Distributed Power Generation Systems , 2006, IEEE Transactions on Industrial Electronics.

[67]  W. Hofmann,et al.  Power Flow Optimisation and Grid Integration of Wind Turbines with the Doubly-Fed Induction Generator , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[68]  A.G. Kladas,et al.  A comparison of maximum-power-point tracking control techniques for low-power variable-speed wind generators , 2009, 2009 8th International Symposium on Advanced Electromechanical Motion Systems & Electric Drives Joint Symposium.

[69]  J. Clare,et al.  Sensorless Control of a Slip Ring Induction Generator based on Rotor Current MRAS Observer , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[70]  O. Anaya-Lara,et al.  Control of DFIG-based wind generation for power network support , 2005, IEEE Transactions on Power Systems.

[71]  Bin Wu,et al.  Use of Stored Energy in PMSG Rotor Inertia for Low-Voltage Ride-Through in Back-to-Back NPC Converter-Based Wind Power Systems , 2013, IEEE Transactions on Industrial Electronics.

[72]  Duarte M. Sousa,et al.  A DFIG sensorless method for direct estimation of slip position , 2010, 2010 IEEE Region 8 International Conference on Computational Technologies in Electrical and Electronics Engineering (SIBIRCON).

[73]  R. Datta,et al.  Direct power control of grid-connected wound rotor induction machine without rotor position sensors , 2001 .

[74]  D. Kastha,et al.  Comparison of MRAS based speed estimation methods for a stand alone Doubly Fed Induction Generator , 2011, 2011 International Conference on Energy, Automation and Signal.

[75]  G. Abad,et al.  Direct Power Control of Doubly-Fed-Induction-Generator-Based Wind Turbines Under Unbalanced Grid Voltage , 2010, IEEE Transactions on Power Electronics.

[76]  Jiabing Hu,et al.  Operation of Wind-Turbine-Driven DFIG Systems Under Distorted Grid Voltage Conditions: Analysis and Experimental Validations , 2012, IEEE Transactions on Power Electronics.

[77]  Sun Dan,et al.  Direct power control for wind-turbine driven doubly-fed induction generator with constant switch frequency , 2007, 2007 International Conference on Electrical Machines and Systems (ICEMS).

[78]  Jon Are Suul,et al.  STATCOM-Based Indirect Torque Control of Induction Machines During Voltage Recovery After Grid Faults , 2010, IEEE Transactions on Power Electronics.

[79]  David J. Atkinson,et al.  Stator-flux-oriented control of a doubly-fed induction machine with and without position encoder , 2000 .

[80]  P.-D. Maria,et al.  A comparison of sensorless speed estimation for a doubly fed induction machine , 2005, 2005 European Conference on Power Electronics and Applications.

[81]  M. Mohamadian,et al.  Microgrid Dynamic Performance Improvement Using a Doubly Fed Induction Wind Generator , 2009, IEEE Transactions on Energy Conversion.

[82]  J.C. Clare,et al.  Vector control of a diesel-driven doubly fed induction machine for a stand-alone variable speed energy system , 2002, IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.

[83]  J. Clare,et al.  MRAS observer for doubly fed induction Machines , 2004, IEEE Transactions on Energy Conversion.

[84]  Sajjad Tohidi,et al.  Analysis and Enhancement of Low-Voltage Ride-Through Capability of Brushless Doubly Fed Induction Generator , 2013, IEEE Transactions on Industrial Electronics.

[85]  H. Polinder,et al.  Comparison of direct-drive and geared generator concepts for wind turbines , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[86]  C Wessels,et al.  Fault Ride-Through of a DFIG Wind Turbine Using a Dynamic Voltage Restorer During Symmetrical and Asymmetrical Grid Faults , 2011, IEEE Transactions on Power Electronics.

[87]  Patrick Wheeler,et al.  Control strategy for a doubly-fed induction generator feeding an unbalanced grid or stand-alone load , 2009 .

[88]  Boon-Teck Ooi,et al.  Estimation of Wind Penetration as Limited by Frequency Deviation , 2006, IEEE Transactions on Energy Conversion.

[89]  S.S. Murthy,et al.  Analysis of wind driven grid connected induction generators under unbalanced grid conditions , 1994, IEEE Power Engineering Review.

[90]  Werner Leonhard,et al.  Control of Electrical Drives , 1990 .

[91]  Jiabing Hu,et al.  Reinforced Control and Operation of DFIG-Based Wind-Power-Generation System Under Unbalanced Grid Voltage Conditions , 2009, IEEE Transactions on Energy Conversion.

[92]  M. Boger,et al.  Performance capability analysis of the brushless doubly-fed machine as a wind generator , 1995 .

[93]  Hong-Hee Lee,et al.  Control of an unbalanced stand-alone DFIG-based wind system using predictive current control method , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[94]  Ranjit Roy,et al.  A critical review on the grid integration issues of DFIG based wind farms , 2011, 2011 10th International Conference on Environment and Electrical Engineering.

[95]  Mariusz Malinowski,et al.  Virtual flux based direct power control of three-phase PWM rectifiers , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[96]  Roberto Cárdenas,et al.  A Topology for Multiple Generation System With Doubly Fed Induction Machines and Indirect Matrix Converter , 2009, IEEE Transactions on Industrial Electronics.

[97]  Hong-Hee Lee,et al.  Performance Enhancement of Stand-Alone DFIG Systems With Control of Rotor and Load Side Converters Using Resonant Controllers , 2012, IEEE Transactions on Industry Applications.

[98]  Birgitte Bak-Jensen,et al.  Conceptual survey of Generators and Power Electronics for Wind Turbines , 2001 .

[99]  Luis Marroyo,et al.  Ride Through of Wind Turbines With Doubly Fed Induction Generator Under Symmetrical Voltage Dips , 2009, IEEE Transactions on Industrial Electronics.

[100]  R. Cardenas,et al.  Sensorless vector control of induction machines for variable-speed wind energy applications , 2004, IEEE Transactions on Energy Conversion.

[101]  S. Bacha,et al.  Reactive power control for variable speed wind turbines to low voltage ride through grid code compliance , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[102]  Chee Wei Tan,et al.  A review of maximum power point tracking algorithms for wind energy systems , 2012 .

[103]  E Tremblay,et al.  Comparative Study of Control Strategies for the Doubly Fed Induction Generator in Wind Energy Conversion Systems: A DSP-Based Implementation Approach , 2011, IEEE Transactions on Sustainable Energy.

[104]  Bimal K. Bose,et al.  Modern Power Electronics and AC Drives , 2001 .

[105]  K. A. Nigim,et al.  Wind-energy recovery by a static Scherbius induction generator , 1981 .

[106]  P. Sanchis,et al.  Dynamic Behavior of the Doubly Fed Induction Generator During Three-Phase Voltage Dips , 2007, IEEE Transactions on Energy Conversion.

[107]  Roberto Cardenas,et al.  Rotor current based MRAS observer for doubly-fed induction machines , 2004 .

[108]  V. T. Ranganathan,et al.  A simple position-sensorless algorithm for rotor-side field-oriented control of wound-rotor induction machine , 2001, IEEE Trans. Ind. Electron..

[109]  Xiaorong Zhu,et al.  Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support , 2011 .

[110]  Le-Ren Chang-Chien,et al.  Strategies for Operating Wind Power in a Similar Manner of Conventional Power Plant , 2009, IEEE Transactions on Energy Conversion.

[111]  Mark Sumner,et al.  Comparative analysis of experimental performance and stability of sensorless induction motor drives , 2006, IEEE Transactions on Industrial Electronics.

[112]  Humberto Pinheiro,et al.  Robust Controller for DFIGs of Grid-Connected Wind Turbines , 2011, IEEE Transactions on Industrial Electronics.

[113]  Barry W. Williams,et al.  Improved Control of DFIG Systems During Network Unbalance Using PI–R Current Regulators , 2009, IEEE Transactions on Industrial Electronics.

[114]  Manel Jebali-Ben Ghorbal,et al.  Direct Virtual Torque Control for Doubly Fed Induction Generator Grid Connection , 2009, IEEE Transactions on Industrial Electronics.

[115]  Toshihiko Noguchi,et al.  Direct power control of PWM converter without power source voltage sensors , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[116]  T. Thiringer,et al.  Modeling and experimental verification of grid interaction of a DFIG wind turbine , 2005, IEEE Transactions on Energy Conversion.

[117]  Muammer Ermis,et al.  Double-output induction generator operating at subsynchronous and supersynchronous speeds: steady-state performance optimisation and wind-energy recovery , 1992 .

[118]  Bhim Singh,et al.  Design and Implementation of Four-Leg Voltage-Source-Converter-Based VFC for Autonomous Wind Energy Conversion System , 2012, IEEE Transactions on Industrial Electronics.

[119]  C. Klumpner,et al.  Wind turbine-energy storage control system for delivering constant demand power shared by DFIGs through droop characteristics , 2009, 2009 13th European Conference on Power Electronics and Applications.

[120]  A. Dittrich,et al.  Comparison of fault ride-through strategies for wind turbines with DFIM generators , 2005, 2005 European Conference on Power Electronics and Applications.

[121]  Yong Kang,et al.  An Improved Low-Voltage Ride-Through Control Strategy of Doubly Fed Induction Generator During Grid Faults , 2011, IEEE Transactions on Power Electronics.

[122]  Ehab F. El-Saadany,et al.  An improved fault ride-through strategy for doubly fed induction generator-based wind turbines , 2008 .

[123]  Lie Xu,et al.  Direct Power Control of DFIG With Constant Switching Frequency and Improved Transient Performance , 2007, IEEE Transactions on Energy Conversion.

[124]  Siegfried Heier,et al.  Grid Integration of Wind Energy Conversion Systems , 1998 .

[125]  G Abad,et al.  Direct Torque Control for Doubly Fed Induction Machine-Based Wind Turbines Under Voltage Dips and Without Crowbar Protection , 2010, IEEE Transactions on Energy Conversion.

[126]  C. Schauder,et al.  Adaptive speed identification for vector control of induction motors without rotational transducers , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[127]  Ned Mohan,et al.  A novel doubly-fed induction wind generator control scheme for reactive power control and torque pulsation compensation under unbalanced grid voltage conditions , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[128]  M S Carmeli,et al.  Effects of Mismatched Parameters in MRAS Sensorless Doubly Fed Induction Machine Drives , 2010, IEEE Transactions on Power Electronics.

[129]  V. Fernao Pires,et al.  Evaluation of a DFIG rotor position-sensorless detector based on a hysteresis controller , 2009, 2009 International Conference on Power Engineering, Energy and Electrical Drives.

[130]  R. Teodorescu,et al.  Overview of recent grid codes for wind power integration , 2010, 2010 12th International Conference on Optimization of Electrical and Electronic Equipment.

[131]  Gabriel Garcera,et al.  Dynamic response analysis of small wind energy conversion systems (WECS) operating with torque control versus speed control , 2009 .

[132]  R. Perini,et al.  An MRAS Observer for Sensorless DFIM Drives With Direct Estimation of the Torque and Flux Rotor Current Components , 2012, IEEE Transactions on Power Electronics.

[133]  Walmir Freitas,et al.  Three-phase doubly fed induction generators: an overview , 2010 .

[134]  Greg Asher,et al.  A doubly fed induction generator using back-to-back PWM converters supplying an isolated load from a variable speed wind turbine , 1996 .

[135]  G D Marques,et al.  A DFIG Sensorless Rotor-Position Detector Based on a Hysteresis Controller , 2011, IEEE Transactions on Energy Conversion.

[136]  Jiabing Hu,et al.  DFIG wind generation systems operating with limited converter rating considered under unbalanced network conditions – Analysis and control design , 2011 .

[137]  I. Martinez,et al.  Gamesa DAC converter: The way for REE grid code certification , 2008, 2008 13th International Power Electronics and Motion Control Conference.

[138]  Lie Xu,et al.  Coordinated Control of DFIG and FSIG-Based Wind Farms Under Unbalanced Grid Conditions , 2010, IEEE Transactions on Power Delivery.

[139]  Jon Clare,et al.  Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation , 1996 .

[140]  O. Gomis-Bellmunt,et al.  Modeling and Validation of DFIG 3-MW Wind Turbine Using Field Test Data of Balanced and Unbalanced Voltage Sags , 2011, IEEE Transactions on Sustainable Energy.

[141]  G. D. Marques,et al.  Air-Gap-Power-Vector-Based Sensorless Method for DFIG Control Without Flux Estimator , 2011, IEEE Transactions on Industrial Electronics.

[142]  Yuan Guofeng,et al.  A novel position sensor-less control scheme of Doubly Fed Induction Wind Generator based on MRAS method , 2008, 2008 IEEE Power Electronics Specialists Conference.

[143]  Yongzheng Zhang,et al.  Sensorless Maximum Power Point Tracking of Wind by DFIG Using Rotor Position Phase Lock Loop (PLL) , 2009, IEEE Transactions on Power Electronics.

[144]  H. Polinder,et al.  Optimization of Multibrid Permanent-Magnet Wind Generator Systems , 2009, IEEE Transactions on Energy Conversion.

[145]  O.A. Mohammed,et al.  A Novel Direct Torque Control of Doubly-Fed Induction Generator Used for Variable Speed Wind Power Generation , 2007, 2007 IEEE Power Engineering Society General Meeting.

[146]  Fabrizio Marignetti,et al.  Analytical and Multiphysics Approach to the Optimal Design of a 10-MW DFIG for Direct-Drive Wind Turbines , 2012, IEEE Transactions on Industrial Electronics.

[147]  N. Mohan,et al.  Control of a Doubly Fed Induction Wind Generator Under Unbalanced Grid Voltage Conditions , 2007, IEEE Transactions on Energy Conversion.

[148]  O.A. Mohammed,et al.  A novel sensorless control strategy of doubly fed induction motor and its examination with the physical modeling of machines , 2005, IEEE Transactions on Magnetics.

[149]  M. Itsaso Martinez,et al.  Sliding-Mode Control for DFIG Rotor- and Grid-Side Converters Under Unbalanced and Harmonically Distorted Grid Voltage , 2012, IEEE Transactions on Energy Conversion.

[150]  Wei Qiao,et al.  Feed-forward transient current control for low-voltage ride-through enhancement of DFIG wind turbines , 2011, 2011 IEEE/PES Power Systems Conference and Exposition.

[151]  Lie Xu,et al.  Improved operation of DFIG and FSIG-based wind farms during network unbalance , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[152]  Aleksandar M. Stankovic,et al.  Analysis and design of direct power control (DPC) for a three phase synchronous rectifier via output regulation subspaces , 2003 .

[153]  I. Erlich,et al.  Advanced grid requirements for the integration of wind turbines into the German transmission system , 2006, 2006 IEEE Power Engineering Society General Meeting.

[154]  G. Abad,et al.  Two-Level VSC Based Predictive Direct Torque Control of the Doubly Fed Induction Machine With Reduced Torque and Flux Ripples at Low Constant Switching Frequency , 2008, IEEE Transactions on Power Electronics.

[155]  Yongchang Zhang,et al.  Predictive direct virtual torque control of doubly fed induction generator for grid synchronization , 2011, 2011 International Conference on Electrical Machines and Systems.

[156]  Damian Flynn,et al.  Decoupled-DFIG Fault Ride-Through Strategy for Enhanced Stability Performance During Grid Faults , 2010, IEEE Transactions on Sustainable Energy.

[157]  Wilfried Hofmann,et al.  Reactive Power Control Design in Doubly Fed Induction Generators for Wind Turbines , 2009, IEEE Transactions on Industrial Electronics.

[158]  M.R. Khadraoui,et al.  Comparison between OptiSlip and Fixed Speed wind energy conversion systems , 2008, 2008 5th International Multi-Conference on Systems, Signals and Devices.

[159]  Boon-Teck Ooi,et al.  Frequency deviation of thermal power plants due to wind farms , 2006, IEEE Transactions on Energy Conversion.

[160]  Roberto Cárdenas,et al.  Sensorless Control for a Switched Reluctance Wind Generator, Based on Current Slopes and Neural Networks , 2009, IEEE Transactions on Industrial Electronics.

[161]  Boon Teck Ooi,et al.  Impacts of Wind Power Minute-to-Minute Variations on Power System Operation , 2008, IEEE Transactions on Power Systems.

[162]  Eduard Muljadi,et al.  Understanding the unbalanced-voltage problem in wind turbine generation , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[163]  Shaotao Dai,et al.  Enhancing Low-Voltage Ride-Through Capability and Smoothing Output Power of DFIG With a Superconducting Fault-Current Limiter–Magnetic Energy Storage System , 2012, IEEE Transactions on Energy Conversion.

[164]  Roberto Cárdenas,et al.  Analysis and Experimental Validation of Control Systems for Four-Leg Matrix Converter Applications , 2012, IEEE Transactions on Industrial Electronics.

[165]  Math Bollen,et al.  Understanding Power Quality Problems: Voltage Sags and Interruptions , 1999 .

[166]  Barry W. Williams,et al.  Wind Turbine Power Coefficient Analysis of a New Maximum Power Point Tracking Technique , 2013, IEEE Transactions on Industrial Electronics.

[167]  Hong-Hee Lee,et al.  Improved predictive current control for unbalanced stand-alone doubly-fed induction generator-based wind power systems , 2011 .

[168]  Antonio Griffo,et al.  Sensorless starting of a wound-field synchronous starter/generator for aerospace applications , 2012, IEEE Transactions on Industrial Electronics.

[169]  N. D. Hatziargyriou,et al.  Frequency Control in Autonomous Power Systems With High Wind Power Penetration , 2012, IEEE Transactions on Sustainable Energy.

[170]  B. G. Fernandes,et al.  A new direct torque control of doubly-fed induction generator under unbalanced grid voltage , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[171]  Yi Wang,et al.  Control of DFIG-based wind farms for power network frequency support , 2010, 2010 International Conference on Power System Technology.

[172]  Barry W. Williams,et al.  Compensation of network voltage unbalance using doubly fed induction generator-based wind farms , 2009 .

[173]  G. Tapia,et al.  Modeling and control of a wind turbine driven doubly fed induction generator , 2003 .

[174]  Tieling Zhang,et al.  Modular converter system reliability & performance analysis in design , 2010, The 2nd International Symposium on Power Electronics for Distributed Generation Systems.

[175]  J. López,et al.  Wind Turbines Based on Doubly Fed Induction Generator Under Asymmetrical Voltage Dips , 2008, IEEE Transactions on Energy Conversion.

[176]  Mohamed Machmoum,et al.  Steady state analysis and experimental investigation of a doubly-fed induction machine supplied by a 'current-source' cycloconverter in the rotor , 1990 .

[177]  I. A. Gowaid,et al.  Improved inertia and frequency support from grid-connected DFIG wind farms , 2011, 2011 IEEE/PES Power Systems Conference and Exposition.

[178]  O. Gomis-Bellmunt,et al.  Ride-Through Control of a Doubly Fed Induction Generator Under Unbalanced Voltage Sags , 2008, IEEE Transactions on Energy Conversion.

[179]  H. Camblong,et al.  DFIG Power Generation Capability and Feasibility Regions Under Unbalanced Grid Voltage Conditions , 2011, IEEE Transactions on Energy Conversion.

[180]  Peter Tavner,et al.  Control of a doubly fed induction generator in a wind turbine during grid fault ride-through , 2006 .

[181]  R. Perini,et al.  A MRAS observer applied to sensorless doubly fed induction machine drives , 2010, 2010 IEEE International Symposium on Industrial Electronics.

[182]  R. W. De Doncker,et al.  Doubly fed induction generator systems for wind turbines , 2002 .

[183]  S. Farhangi,et al.  Comparison of power fluctuation between Optislip and DFIG controlled wind turbines , 2012, 2012 3rd Power Electronics and Drive Systems Technology (PEDSTC).

[184]  R.G. Harley,et al.  Real-Time Implementation of a STATCOM on a Wind Farm Equipped With Doubly Fed Induction Generators , 2006, IEEE Transactions on Industry Applications.

[185]  Stavros A. Papathanassiou,et al.  A review of grid code technical requirements for wind farms , 2009 .

[186]  Li Ran,et al.  Control of a doubly fed induction generator in a wind turbine during grid fault ride-through , 2006, IEEE Transactions on Energy Conversion.

[187]  S. P. Chowdhury,et al.  Protection and voltage control of DFIG wind turbines during grid faults , 2010 .

[188]  G. Joos.  Wind turbine generator low voltage ride through requirements and solutions , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[189]  Nicholas Jenkins,et al.  Frequency support from doubly fed induction generator wind turbines , 2007 .

[190]  J. Clare,et al.  Control System for Unbalanced Operation of Stand-Alone Doubly Fed Induction Generators , 2007, IEEE Transactions on Energy Conversion.

[191]  Heng Nian,et al.  Dynamic Modeling and Improved Control of DFIG Under Distorted Grid Voltage Conditions , 2011, IEEE Transactions on Energy Conversion.

[192]  Istvan Erlich,et al.  Protection system behavior of DFIG based wind farms for grid-faults with practical considerations , 2010, IEEE PES General Meeting.

[193]  Hamid A. Toliyat,et al.  A sensorless integrated doubly-fed electric alternator/active filter (IDEA) for variable speed wind energy system , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[194]  Guillermo O. García,et al.  Adaptive Observer for Sensorless Control of Stand-Alone Doubly Fed Induction Generator , 2009, IEEE Transactions on Industrial Electronics.

[195]  M. O'Malley,et al.  The inertial response of induction-machine-based wind turbines , 2005, IEEE Transactions on Power Systems.

[196]  Zhanfeng Song,et al.  Input–Output Feedback Linearization and Speed Control of a Surface Permanent-Magnet Synchronous Wind Generator With the Boost-Chopper Converter , 2012, IEEE Transactions on Industrial Electronics.

[197]  Wlodzimierz Koczara,et al.  Sensorless Direct Voltage Control of the Stand-Alone Slip-Ring Induction Generator , 2007, IEEE Transactions on Industrial Electronics.

[198]  Peng Zhou,et al.  Improved Direct Power Control of a DFIG-Based Wind Turbine During Network Unbalance , 2009, IEEE Transactions on Power Electronics.

[199]  B. Andresen,et al.  A high power density converter system for the Gamesa G10x 4,5 MW wind turbine , 2007, 2007 European Conference on Power Electronics and Applications.

[200]  Hirofumi Akagi,et al.  Control and performance of a doubly-fed induction machine intended for a flywheel energy storage system , 2002 .

[201]  Leonid M. Fridman,et al.  Lyapunov-Designed Super-Twisting Sliding Mode Control for Wind Energy Conversion Optimization , 2013, IEEE Transactions on Industrial Electronics.

[202]  M. Kayikci,et al.  Dynamic Contribution of DFIG-Based Wind Plants to System Frequency Disturbances , 2009, IEEE Transactions on Power Systems.

[203]  G. Joos,et al.  Design of a Robust Speed and Position Sensorless Decoupled P-Q Controlled Doubly-Fed Induction Generator for Variable-Speed Wind Energy Applications , 2007, 2007 IEEE Canada Electrical Power Conference.

[204]  J. Morren,et al.  Short-Circuit Current of Wind Turbines With Doubly Fed Induction Generator , 2007, IEEE Transactions on Energy Conversion.