• Abdellatif Hinda Ecole Nationale Polytechnique d'Oran, Algeria
  • Mounir Khiat Ecole Nationale Polytechnique d'Oran, Algeria
  • Zinelaabidine Boudjema University of Chlef, Algeria




UPFC, FACTS, PI, second order sliding mode, fuzzy logic


Purpose. This paper presents an advanced control scheme based on fuzzy logic and second order sliding mode of a unified power flow controller. This controller offers advantages in terms of static and dynamic operation of the power system such as the control law is synthesized using three types of controllers: proportional integral , and sliding mode controller and Fuzzy logic second order sliding mode controller. Their respective performances are compared in terms of reference tracking, sensitivity to perturbations and robustness. We have to study the problem of controlling power in electric system by UPFC. The simulation results show the effectiveness of the proposed method especially in chattering-free behavior, response to sudden load variations and robustness. All the simulations for the above work have been carried out using MATLAB / Simulink. Various simulations have given very satisfactory results and we have successfully improved the real and reactive power flows on a transmission line as well as to regulate voltage at the bus where it is connected, the studies and illustrate the effectiveness and capability of UPFC in improving power.

Author Biography

Zinelaabidine Boudjema, University of Chlef

Electrical Engineering Department


IEEE Draft Recommended Practice for Monitoring Electric Power Quality. 2018.

Boudiaf M., Moudjahed M. Improvement of transient stability of power system by IPFC, SSSC and STATCOM. Journal of Electrical Engineering, 2014, vol.14, no.1, pp.257-272.

Yang S., Liu Y., Wang X., Gunasekaran D., Karki U., Peng F.Z. Modulation and Control of Transformerless UPFC. IEEE Transactions on Power Electronics, 2016, vol.31, no.2, pp. 1050-1063. doi: 10.1109/tpel.2015.2416331.

Krishna T.M., Anjaneyulu K.S.R. Coordination of intelligent controllers for shunt and series converters of UPFC. 2015 Conference on Power, Control, Communication and Computational Technologies for Sustainable Growth (PCCCTSG), Dec. 2015. doi: 10.1109/pccctsg.2015.7503911.

Round S.D. Performance of a unified power flow controller using a d-q control system. Sixth International Conference on AC and DC Power Transmission, 1996. doi: 10.1049/cp:19960384.

Sharma N. K., Jagtap P.P. Modelling and Application of Unified Power Flow Controller (UPFC). 2010 3rd International Conference on Emerging Trends in Engineering and Technology, 2010. doi: 10.1109/icetet.2010.169.

Umre P.B., Bandal V.S., Dhamne A.R. Design of controller for Unified Power Flow Controller (UPFC) using Sliding Mode Control (SMC) strategies. 2014 5th International Conference – Confluence The Next Generation Information Technology Summit (Confluence), 2014. doi: 10.1109/CONFLUENCE.2014.6949286.

Shotorbani A., Ajami A., Zadeh S., Aghababa M., Mahboubi B. Robust terminal sliding mode power flow controller using unified power flow controller with adaptive observer and local measurement. IEEE IET Generation, Transmission & Distribution, 2014, vol.8, no.10, p.1712-1723. doi: 10.1049/iet-gtd.2013.0637.

Nayeripour M., Narimani M.S., Niknam T., Jam S. Design of sliding mode controller for UPFC to improve power oscillation damping. Applied Soft Computing, 2011, vol.11, no.8, 2011, pp. 4766-4772. doi: 10.1016/j.asoc.2011.07.006.

LÓpez J., Sanchis P., Roboam X., Marroyo L. Dynamic Behavior of the Doubly Fed Induction Generator During Three-Phase Voltage Dips. IEEE Transactions on Energy Conversion, 2007, vol.22, no.3, pp. 709-717. doi: 10.1109/tec.2006.878241.

Cupertino F., Naso D., Mininno E., Turchiano B. Sliding-Mode Control With Double Boundary Layer for Robust Compensation of Payload Mass and Friction in Linear Motors. IEEE Transactions on Industry Applications, 2009, vol.45, no.5, pp. 1688-1696. doi: 10.1109/tia.2009.2027521.

Bouanane A., Amara M., Chaker A. State space neural network control (SSNNC) of UPFC for compensation power. 2015 3rd International Renewable and Sustainable Energy Conference (IRSEC), Dec. 2015. doi: 10.1109/irsec.2015.7455135.

Kamel S., Jurado F., Lopes J.A.P. Comparison of various UPFC models for power flow control. Electric Power Systems Research, 2015, vol.121, pp. 243-251. doi: 10.1016/j.epsr.2014.11.001.

Mallick R.K., Nahak N., Sinha R.R. Fuzzy sliding mode control for UPFC to improve transient stability of power system. 2015 Annual IEEE India Conference (INDICON), Dec. 2015. doi: 10.1109/indicon.2015.7443182.

Meng W., Qinxiang G., Leiting C., Liqiang L., Caiyun Z. Mathematical Model and Control Strategy of UPFC. 2014 Sixth International Conference on Measuring Technology and Mechatronics Automation, Jan. 2014. doi: 10.1109/icmtma.2014.96.

Wai R.J., Chang J.M. Implementation of robust wavelet-neural-network sliding-mode control for induction servo motor drive. IEEE Transactions on Industrial Electronics, 2008, vol.50, no.6, pp. 1317-1334. doi: 10.1109/TIE.2003.819570.

Utkin V.I. Sliding mode control design principles and applications to electric drives. IEEE Transactions on Industrial Electronics, 1993, vol.40, no.1, pp. 23-36. doi: 10.1109/41.184818.

Astrom K.J., Wittenmark B. Adaptive Control. New York, Addison-Wesley, 1995.

Sun T., Chen Z., Blaabjerg F. Flicker study on variable speed wind turbines with doubly fed induction generators. IEEE Transactions on Energy Conversion, 2005, vol.20, no.4, pp.896-905. doi: 10.1109/TEC.2005.847993.

Slotine J.J.E., Li W. Applied Nonlinear Control. Englewood Cliffs, NJ, Prentice-Hall, 1991.

Slotine J.-J.E. Sliding controller design for non-linear systems. International Journal of Control, 1984, vol.40, no.2, pp. 421-434. doi: 10.1080/00207178408933284.

Tseng M.-L., Chen M.-S. Chattering reduction of sliding mode control by low-pass filtering the control signal. Asian Journal of Control, 2010, vol.12, no.3, pp. 392-398. doi: 10.1002/asjc.195.

Boudjema Z., Meroufel A., Djerriri Y., Bounadja E. Fuzzy sliding mode control of a doubly fed induction generator for wind energy conversion. Carpathian Journal of Electronic and Computer Engineering, 2013, vol.6, no.2, pp. 7-14.

Levant A., Alelishvili L. Integral High-Order Sliding Modes. IEEE Transactions on Automatic Control, 2007, vol.52, no.7, pp. 1278-1282. doi: 10.1109/tac.2007.900830.

Benelghali S., Benbouzid M.E.H., Charpentier J.F., Ahmed-Ali T., Munteanu I. Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control. IEEE Transactions on Industrial Electronics, 2011, vol.58, no.1, pp. 118-126. doi: 10.1109/tie.2010.2050293.




How to Cite

Hinda, A., Khiat, M., & Boudjema, Z. (2019). FUZZY SECOND ORDER SLIDING MODE CONTROL OF A UNIFIED POWER FLOW CONTROLLER. Electrical Engineering & Electromechanics, (6), 55–61. https://doi.org/10.20998/2074-272X.2019.6.08



Power Stations, Grids and Systems