International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

State Feedback Controller Based Imperialist Competitive Algorithm for Load Frequency Control Problem

Author Affiliations

  • 1Natanz Branch, Islamic Azad University, Department of Electrical Engineering, Natanz, Isfahan, IRAN

Res. J. Recent Sci., Volume 3, Issue (9), Pages 79-84, September,2 (2014)


A major issue in the power system design and operation is Load Frequency Control (LFC). For solving load frequency control problem a new method is proposed considering the state feedback controller based on Imperialist Competitive Algorithm (ICA). In this solution, an objective cost function is used to design the gains of the state feedback matrix. The frequency deviation and power flow variations between the two area is decreased by the proposed cost function. For minimizing the proposed cost function the ICA algorithm is considered. The proposed method evaluation is done by applying the design controller to a two area power system with considerations regarding governor saturation and the results are compared to the one obtained by a classic PI controller. Simulation results show better operation and improved system parameters such as settling time and step response rise time using the proposed approach.


  1. Shayeghi N., A robust decentralized power system load frequency control, Journal of Electrical Engineering, 59, 281-293 (2008)
  2. Calovic W.G., Linear regulator design for a load and frequency control theory, IEEE Trans. Power App. Syst., 14, 57–62 (2012)
  3. Bengiamin N. and Chan W.C., Variable structure control of electric power generation, IEEE Trans. Power App. Syst., IEEE Trans. on Power System,18(1), 305-312 (2011)
  4. Khodabakhshian S.H. and Golbon N., Robust load frequency controller design for hydro power systems, in Proc. 2005 IEEE Conf. Control Applications., 2, 1150-1154 (2011)
  5. Talaq T. and Al-Basri F., Adaptive fuzzy gain scheduling for load frequency control, IEEE Trans. Power Syst., 1953–1957, (2010)
  6. Noroozian M., Angquist L., Ghandhari M., Andersson G., Use of UPFC for Optimal Power Flow Control, IEEE Trans. on Power Delivery, 12(4), 1629-1634 (2010)
  7. On the Energy Estimation of Lightning Discharge Paras Manoj Kumar and Rai Jagdish, Res.J.Recent Sci.,1(9), 36-40 (2012)
  8. Gyugyi L., Schauder C.D., Williams S.L., Reitman T.R., Torgerson D.R. and Edris A., The Unified Power Flow Controller: A New Approach to Power Transmission Control, IEEE Trans. on Power Delivery, 10(2), 1085-1097 (1995)
  9. Nabavi-Niaki A. and Iravani M.R., Steady State and Dynamic Models of Unified Power Flow Controller (UPFC) for Power System Studies, IEEE Trans. on Power Systems, 11(4), 1937-1943 (1996)
  10. L’Abbate A., Haque M.H., Becker C. and Handschin E., Advanced Steady-State Models of UPFC for Power System Studies, IEEE Trans. on Power Systems, 17(4), (2002)
  11. Obtaining a high Accurate Fault Classification of Power Transformer based on Dissolved Gas Analysis using ANFIS Patil Pallavi and Ingle Vikal, Res.J.Recent Sci.,1(2), 97- 99(2012)
  12. Thermodynamics and the Design, Analysis and Improvement of a Combined Heat and Power System Dev Nikhil, Attri Rajesh, Mittal Vijay, Kumar Sandeep, Mohit, Satyapal and Kumar Pardeep, Res.J.Recent Sci.,1(3), 76-79 (2012)
  13. Fam D.F., Koh S.P., Tiong S.K. and Chong K.H., Qualitative Analysis of Stochastic Operations in Dual Axis Solar Tracking Environment, Res.J.Recent Sci.,1(9),74-78 (2012)
  14. Collins C., Watson N. and Wood A., UPFC Modeling in Harmonic Domain, IEEE Trans. on Power Delivery, 21(2), 933-938 (2006)
  15. Fujita H., Akagi H. and Watanabe Y., Dynamic Control and Performance of a Unified Power Flow Controller for Stabilizing an AC Transmission System, IEEE Trans. on Power Electronics, 21(4), 1013-1020 (2006)
  16. Lu B. and Ooi B., Nonlinear Control of Voltage– Source Converter System, IEEE Trans. on Power Electronics, 22(4), 1186-1195 (2007)