Adel KHEDHER, Nihel KHEMİRİ, Mohamed Faouzi MİMOUNİ

Wind Energy Conversion System Using DFIG Controlled by Backstepping and Sliding Mode Strategies

The aim of this paper is to compare some backstepping and sliding mode control strategies for a doubly-fed induction generator (DFIG) used in wind energy conversion systems (WECS). The DFIG connected to the grid through two power converters: Rotor Side Converter (RSC) and Grid Side Converter (GSC). There are two different controllers technique to control the two power converters: Backstepping and Sliding mode control (SMC). The backstepping strategy is asymptotically stable in the context of Lyapunov theory. Simulation results have shown good performances of the system under these proposed control strategies. Compared to backstepping control strategy, the sliding mode control approach presents best performances.

Keywords:

DFIG, Backstepping Sliding Mode Control, Rotor Side Converter, Grid Side Converter.,

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Yang L., Xu Z., Ostergaard J. and Dong ZY, “Advanced Control Strategy of DFIG Wind Turbines for Power System Fault Ride Through”, IEEE Transactions on Power Systems, Vol 27, N°2, pp. 713-722, 2012.
Belfedal C., Moreau S., Champenois G., Allaoui T. and Denai M, “Comparison of PI and Direct Power Control with SVM of Doubly Fed Induction Generator”, Journal of Electrical & Electronics Engineering, Vol 8, N° 2, Ben Alaya J., Khedher A. and Mimouni M. F, “DTC and Nonlinear Vector Control Strategies Applied to the DFIG operated at Variable Speed”, WSEAS Transactions on environment and development. Vol. 6, N° 11, pp. 744- , 2010.
Ben Alaya J., Khedher A. and Mimouni M. F, “ DTC, DPC and Nonlinear Vector Control Strategies Applied to the DFIG operated at Variable Speed”, Journal of Electrical Engineering JEE, Vol. 6, N° 11, pp. 744-753, Luna A., Lima F. K. A., Rodríguez P., Watanabe E. H. and Teodorescu R, “Comparison of Power Control Strategies for DFIG Wind Turbines”, IEEE Transactions On Energy Conversion, pp. 2131-2136, 2008.
Karthikeyan A., Kummara S.K, Nagamani C. and Saravana Ilango G, “ Power control of grid connected Doubly Fed Induction Generator using Adaptive Back Stepping approach“, in Proc 10th IEEE International Conference on Environment and Electrical Engineering EEEIC-2011, Rome, May 2011.
Karim A., Sam Ri, “A New Approach for Maximum Power Extraction from Wind Turbine Driven by Doubly Fed Induction Generator Based on Sliding Mode Control”, Energy Management, Vol 1, N° 2, 2012.
Nemmour A.L., Mehazzem F., Khezzar A., M, Abdessemed R, “ Advanced Backstepping controller for induction generator using multi-scalar machine model for wind power purposes”, Journal of Renewable Energy, Vol . 35, N°10, pp. 2375-2380, 2010.
Ben Alaya J., Khedher A., Mimouni M.F, “Variable Speed Vector Control Strategy of the Double Fed Induction Generator Integrated in Electrical Grid”, Third International Conference on Ecological Vehicles & Renewable Energies (EVER’08), March 2008.
Khemiri N., Khedher A. and Mimouni M.F, “ Steady-state performances analysis of wind turbine using DFIG drive connected to grid”, in CD-ROM of International Conference JTEA’10, Hammamet-Tunisia, 28 Mars 2010.
Laoufi A., Hazzab A., Bousserhane I.K. and Rahli M.“Direct Field-Oriented control using Backstepping technique for Induction Motor speed control”, International Journal of Applied Engineering Research, vol. 1, n°1,pp. 37-50, 2006.
Tan H. and Chang J, “Field orientation and adaptative Backstepping for induction motor control”, Thirty-Fourth IAS Annual Meeting, IEEE Industry Applications Conference, vol. 4, pp: 2357-2363, 3-7 October1999.
Trabelsi R., Khedher A., Mimouni M.F., M’Sahli F. and Masmoudi A. “Rotor flux estimation based on nonlinear feedback integrator for backstepping-controlled induction motor drives”, Electromotion Journal 17, 2010, pp:163-172.
Trabelsi R., Khedher A., Mimouni M.F and M’Sahli F., “An Adaptive Backstepping Observer for on-line rotor resistance adaptation”, International Journal IJ-STA, Volume 4, n°1, July 2010, pp.1246-1267.
Joshi R.R, Gupta R.A. and Wadhwani A.K, “Adaptive implementation for a matrix-converter-based IM drive system”, Journal of Theoretical and Applied Information Technology, JATIT, 2007. controller design and
Khedher A., Mimouni M.F., Derbel N., Masmoudi A. A survey on modeling, estimation and on-line adaptation of induction motor parameters under R.F.O.C. Trans. on Systems, Signals and Devices, Vol.2, N° 2, pp.177–95, 2007.
Bekakra Y. And Ben Attous D, “Sliding Mode Controls of Active and Reactive Power of a DFIG with MPPT for Variable Speed Wind Energy Conversion”. Australian Journal of Basic and Applied Sciences, pp. 2286, December 2011.
Ouari K., Rekioua T. and Ouhrouche M. A, “Non Linear Predictive Controller for Wind Energy Conversion System”, International Renewable Energy Congress IREC, pp. 220-226, November 2010.
Naamane A. and Msirdi N.K, “Doubly Feed Induction Generator Control for an Urban Wind Turbine”, International Renewable Energy Congress IREC, pp. 208-214, November 2010.
Hu J., Nian H. and Zhu Z.Q, “Direct Active and Reactive Power Regulation of DFIG Using Sliding-Mode Control Approach”. IEEE Transactions on Energy Conversion, Vol. 25, N° 4, December 2010.
Jerbi L., Krichen L. and Ouali A, “A fuzzy logic supervisor for active and reactive power control of a variable speed wind energy conversion system associated to a ﬂywheel storage system”, Electric Power Systems Research, Vol. 79, No 6, pp. 919–925, 2009. Appendix