Improved Strategy of an MPPT Based on the Torque Estimator for Variable Speed Turbines

Abdelwahed Touati; Elhassane Abdelmounim; Mohamed Aboulfatah; Ahmed Moutabir; Radouane Majdoul

doi:10.15866/iremos.v8i6.7122

Improved Strategy of an MPPT Based on the Torque Estimator for Variable Speed Turbines

Abdelwahed Touati^(1*), Elhassane Abdelmounim⁽²⁾, Mohamed Aboulfatah⁽³⁾, Ahmed Moutabir⁽⁴⁾, Radouane Majdoul⁽⁵⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iremos.v8i6.7122

Abstract

This paper proposes a new adaptive control for Maximum Power Point Tracking (MPPT) in variable-speed wind turbine systems based on a doubly fed induction generator (DFIG). The proposed control does not neglect the dynamic of the drive train, when the conventional strategy considers that the aerodynamic torque is supposed to be equal to the mechanical torque. This assumption is not realistic, especially for turbulent winds. The closed loop control using a high-order sliding mode allows the generator to track the optimal operation points of the wind turbine system under fluctuating wind conditions. This improves the quality of energy, energy efficiency and presents attractive features. To meet at all times the LVRT requirements, a technique using a dynamic voltage restorer system (DVR) is developed to compensate the faulty line voltage, especially for grid disturbances, while the doubly fed induction generator (DFIG) can continue its nominal operation as demanded in actual grid codes. Simulation is carried out in SimPower toolbox of Matlab/Simulink. Simulation results confirm the effectiveness of the proposed control methods and shown that the controllers meet its objectives.
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Keywords

Wind Turbines (WTs); Doubly Fed Induction Generator (DFIG); MPPT; Low Voltage Ride Through (LVRT); Dynamic Voltage Restorer (DVR); KALMAN Observer; Back-Stepping Control; Lyapunov; Second Order Sliding Mode Control

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References

Global Wind Energy Council – GWEC: http://www.gwec.net/publications/global-wind-energy-outlook/global-wind-energy-outlook-2014/

Ali M. Eltamaly, A. I. Alolah and Hassan M. Farh (2013). Maximum Power Extraction from Utility-Interfaced Wind Turbines, New Developments in Renewable Energy, Prof. Hasan Arman (Ed.), ISBN: 978-953-51-1040-8, InTech, DOI: 10.5772/54675.

Lingling Fan, Zhixin Miao, , Xin Wang “Sensorless Maximum Power Point Tracking in Multi-Type Wind Energy Conversion Systems. Joint 48th IEEE Conference on Decision and Control and28th Chinese Control Conference Shanghai, P.R. China, December 16-18, 2009
http://dx.doi.org/10.1109/cdc.2009.5400505

S.Chandrasekaran, C.Rossi, D.Casadei, A.Tani, Grid Connected Wind Energy Conversion System based on a Doubly Fed Induction Generator (DFIG), International Journal of Electrical Energy, Vol. 2, No. 2, June 2014, pp. 161-166.
http://dx.doi.org/10.12720/ijoee.2.2.161-166

Majid, A. A, Yatim, A. H. M, & Chee, W. Tan. A Study of Maximum Power Point Tracking Algorithms for Wind Energy System. Proc. of 1st IEEE Conf. on Clean Energy and Technology CET, (2011), pp 321-326.
http://dx.doi.org/10.1109/cet.2011.6041484

Joanne Hui ” An Adaptive Control Algorithm for Maximum Power Point Tracking for Wind Energy Conversion Systems”, Department of Electrical and Computer Engineering, Queen’s University Kingston, Ontario, Canada December 2008;
http://dx.doi.org/10.1109/pesc.2008.4592580

Moualdia, A., Mahoudi, M.O., Nezli, L., Bouchhida, O., Modelling and control of a wind power conversion system based on the double-fed asynchronous generator, (2012) International Journal of Renewable Energy Research, 2 (2), pp. 300-306..

J. Lopez, E. Gubia, P. Sanchis, X. Roboam, and L. Marroyo, “Wind turbines based on doubly fed induction generator under asymmetrical voltage dips,” IEEE Trans. Energy Convers., vol. 23, no. 1, pp. 321–330, Mar. 2008.
http://dx.doi.org/10.1109/tec.2007.914317

S. Abdeddaim, A. Betka, Optimal tracking and robust power control of the DFIG wind turbine, International Journal of Electrical Power & Energy Systems, Volume 49, July 2013, Pages 234-242, ISSN 0142-0615.
http://dx.doi.org/10.1016/j.ijepes.2012.12.014

Sajjad Saberia and Mehdi Karrari; “Investigating different passive methods for enhancement of low voltage ride through capability of Doubly Fed Induction Generator’ JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY 5, 053116 (2013)
http://dx.doi.org/10.1063/1.4822055

Christian Wessels, ‘’Fault Ride-Through of a DFIG Wind Turbine Using a Dynamic Voltage Restorer During Symmetrical and Asymmetrical Grid Faults”, IEEE Transactions on Power Electronics, Vol. 26, No. 3, March 2011
http://dx.doi.org/10.1109/tpel.2010.2099133

J. G. Nielsen, “Design and control of a dynamic voltage restorer,” Ph.D. dissertation, Inst. Energy Technol., Aalborg Univ., Aalborg, Denmark, Mar. 2002.

G. Salloum, ″Contribution à la Commande de la Machine Asynchrone à Double Alimentation″, Thèse de Doctorat en Génie Electrique, Institut National Polytechnique de Toulouse, France, 2007.

Beltran, B., Benbouzid, M., Ahmed-Ali, T., Mangel, H., DFIG-based wind turbine robust control using high-order sliding modes and a high gain observer, (2011) International Review on Modelling and Simulations (IREMOS), 4 (3), pp. 1148-1155.

Mohamed Benbouzid,” High-Order Sliding Mode Control of DFIG-Based Wind Turbines”, Chapter 2, Wind turbine control and monitoring, http://www.springer.com/978-3-319-08412-1
http://dx.doi.org/10.1007/978-3-319-08413-8_2

Rosyadi, M., Muyeen, S.M., Takahashi, R., Tamura, J., Fuzzy-PI controller design for PM wind generator to improve fault ride through of wind farm, (2013) International Journal of Renewable Energy Research, 3 (2), pp. 308-314.
http://dx.doi.org/10.1109/icrera.2012.6477384

Jogendra Singh Thongam and Mohand Ouhrouche (2011). MPPT Control Methods in Wind Energy Conversion Systems, Fundamental and Advanced Topics in Wind Power, Dr. Rupp Carriveau (Ed.), ISBN: 978-953-307-508-2, InTech
http://dx.doi.org/10.5772/21657

F. Poitiers, T. Bouaouiche, M. Machmoum, “Advanced control of a doubly fed induction generator wind energy conversion”, Electric Power Systems Research, 79 (2009) 1085–1096.
http://dx.doi.org/10.1016/j.epsr.2009.01.007

Beltran B. et al. Sliding mode power control of variable speed wind energy conversion systems. IEEE Trans. Energy Conversion, vol. 23, n°2, pp. 551-558, June 2008;
http://dx.doi.org/10.1109/tec.2007.914163

Müller S. et al. Doubly fed induction generator systems. IEEE Industry Applications Magazine, vol. 8, n°3, pp. 26-33, May-June 2002.
http://dx.doi.org/10.1109/2943.999610

Fridman L, Levant A. Sliding mode control in engineering. Higher order sliding modes. Marcel Dekker, Inc.; 2002. chapter 3, p. 53–101.
http://dx.doi.org/10.1201/9780203910856.ch3

Bartolini G, Ferrara A, Levant A, Usai E. Variable structure systems, sliding mode and nonlinear control. Berlin/Heidelberg: Springer; 1999. ch. On second order sliding mode controllers, p. 329–85.
http://dx.doi.org/10.1007/bfb0109984

A. Touati, A. Abouloifa, E. Abdelmounim, M. Aboulfatah ”Observation and control of a single-phase DC-AC converter with sliding mode” (ICMCS),2014, 4th IEEE Conference on Multimedia Computing and Systems Marrakesh, Morocco, April 2014, pp.1539– 1544.
http://dx.doi.org/10.1109/icmcs.2014.6911403

Sorin. Gusia, « Modeling of the power electronics systems controlled by pwm », University of the Catholique Louvain, bruxelle, Belgium, September 2005.

M. Maheswari, S. Thangavel, R. Suresh Kumar and C. Vivekanandan” Power Quality Improvement Using Multilevel Inverter Based DynamicVoltage Restorer with PI Controller” Chapter Power Electronics and Renewable Energy Systems Volume 326 of the series Lecture Notes in Electrical Engineering pp 721-729
http://dx.doi.org/10.1007/978-81-322-2119-7_70

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