A Novel Method of Fault Diagnosis in Wind Power Generation System

Along with environmental consciousness enhancement, conventional energy depletion, wind energy exploitation is expanding gradually due to the renewable merit, clean without any pollution and vast reserve features. Therefore, wind power generation (WPG) system equipped with Doubly Fed Induction Generators is emerging as mushroom. Larger rated capacity of power unit, the higher tower and the variable pitch are the main scope in WPG system. However, latent trouble will bring about likewise. If a fault occurred, it will be catastrophic for WPG system. Consequently, the technology of fault detection will play a more important role in WPG system. Based on the present status, a novel method is proposed in this paper after summarizing and analyzing the lack of previous methods. Then an example for detecting the inverter fault is studied using PSCAD software. Results indicated that the proposed method is effective and feasible.

[1]  Y. Gritli,et al.  Stator fault analysis based on wavelet technique for wind turbines equipped with DFIG , 2009, 2009 International Conference on Clean Electrical Power.

[2]  Z.E. Gketsis,et al.  Detection and Classification of Winding Faults in Windmill Generators Using Wavelet Transform and ANN , 2007, 2007 IEEE International Electric Machines & Drives Conference.

[3]  W. Sae-Kok,et al.  Open Switch Fault Diagnosis for a Doubly-Fed Induction Generator , 2007, 2007 7th International Conference on Power Electronics and Drive Systems.

[4]  G.W. Chang,et al.  An analytical approach for characterizing harmonic and interharmonic currents generated by VSI-fed adjustable speed drives , 2005, IEEE Transactions on Power Delivery.

[5]  G.W. Chang,et al.  Modeling characteristics of harmonic currents generated by high-speed railway traction drive converters , 2004, IEEE Transactions on Power Delivery.

[6]  A.M.S. Mendes,et al.  Voltage source inverter fault diagnosis in variable speed AC drives, by the average current Park's vector approach , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[7]  Li Ran,et al.  Real-time detection of intermittent misfiring in a voltage-fed PWM inverter induction-motor drive , 1997, IEEE Trans. Ind. Electron..

[8]  Weiqing Wang,et al.  Summerization and study of fault diagnosis technology of the main components of wind turbine generator system , 2008, 2008 IEEE International Conference on Sustainable Energy Technologies.

[9]  I. Erlich,et al.  Enhanced Fault Ride-Through Method for Wind Farms Connected to the Grid Through VSC-Based HVDC Transmission , 2009, IEEE Transactions on Power Systems.

[10]  Zhe Zhang,et al.  The Research on the Characteristic of Fault Current of Doubly-Fed Induction Generator , 2009, 2009 Asia-Pacific Power and Energy Engineering Conference.

[11]  G. Wang,et al.  Study of the optimal power output in variable speed wind power generation system based on switched reluctance motor , 2009, 2009 International Conference on Sustainable Power Generation and Supply.

[12]  R. Peuget,et al.  Fault detection and isolation on a PWM inverter by knowledge-based model , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[13]  J.B. Carvalho,et al.  Fault detection on wind generators , 2008, 2008 43rd International Universities Power Engineering Conference.

[14]  Li Hui.  Invester Fault Diagnose Based on Detecting DC Side Current , 2008 .

[15]  K. S. Smith,et al.  Assessment and enhancement of grid fault-induced torsional oscillations for induction generator-based wind turbines , 2009, 2009 IEEE/PES Power Systems Conference and Exposition.

[16]  Antonio Marcus Nogueira Lima,et al.  Fault detection of open-switch damage in voltage-fed PWM motor drive systems , 2003 .