King Fahd University of Petroleum & Minerals

Electrical Engineering Department

Assistant Professor

Research Interests and Experiences

¨ Robust, optimal, adaptive and multi-objective control

¨  Linear Matrix Inequality (LMI) methods (analysis/synthesis) in control

¨  Robust stability/performance analysis against time-varying perturbations

¨  Analysis and synthesis based on Integral Quadratic Constraints (IQC)

¨  Linear parametrically varying (LPV) control

¨  Generalized asymptotic regulation

¨  Sinusoidal disturbance attenuation

¨ Repetitive control

¨  Restricted complexity optimal control

¨  Synergistic design of identification and control

Scholarly Publications

1. Hakan Köroğlu, Parameter Optimized Controller Design based on Frequency Domain Identification, MSc Thesis, Bilkent University, Dept. of Electrical Engineering, Ankara, Turkey, Sept 1995.

2. Hakan Köroğlu, Linear Quadratic Control for Harmonic Signals, PhD Thesis, Bilkent University, Dept. of Electrical Engineering, Ankara, Turkey, June 2001.

1.   Hakan Köroğlu, “New Optimization Methods for Improved Proximity Matching in Lithography”, Technical Report for ASML, December 2010.

2.   Hakan Köroğlu & Carsten W. Scherer, “ Robust LPV Gain Scheduling Techniques for Space Applications – Study Case: Atmospheric Re-entry with NASA HL20 Vehicle”, Technical Report for ESA, October 2008.

3.   Hakan Köroğlu, Mazen Farhood & Carsten W. Scherer, “Robust LPV Gain Scheduling Techniques for Space Applications – The IQC Analysis Tool”, Technical Report for ESA, June 2008.

4.   Hakan Köroğlu & Carsten W. Scherer, “Robust LPV Gain Scheduling Techniques for Space Applications - Review of LPV System Analysis”, Technical Report for ESA, October 2007.

1.   Hakan Köroğlu & Carsten W. Scherer, “Robust Generalized Asymptotic Regulation against Non-stationary Sinusoidal Disturbances with Uncertain Frequencies”, International Journal of Robust and Nonlinear Control, Vol.21, No.8, pp. 883–903, May 2011.

2.   Hakan Köroğlu & Carsten W. Scherer, “Scheduled Controller Synthesis for Robust Attenuation of Non-Stationary Sinusoidal Disturbances with Measurable Frequencies”, Automatica, Vol.47, No.3, pp.504-514, March 2011.

3.   Hakan Köroğlu & Carsten W. Scherer, “Generalized Asymptotic Regulation with Guaranteed H₂ Performance: An LMI Solution”, Automatica, Vol.45, No.3, pp. 823-829, March 2009.

4.   Hakan Köroğlu & Carsten W. Scherer, “An LMI Approach to H_µ Synthesis Subject to Almost Asymptotic Regulation Constraints”, Systems and Control Letters, Vol.: 57, No:4, pp.300-308, March 2008.

5.   Hakan Köroğlu & Carsten W. Scherer, “Robust Performance Analysis for Structured Linear Time-Varying Perturbations with Bounded Rates-of-Variation”, IEEE Trans. Automatic Control, Vol.52, No.2, pp. 197-211, February 2007.

6.   Hakan Köroğlu & Ömer Morgül, “Quadratic Optimality of the Zero-Phase Repetitive Control”, ASME Journal of Dynamic Systems, Measurement, and Control, Vol.: 123, No: 3, pp.554-555, September 2001.

7.   Hakan Köroğlu & Ömer Morgül, “Time-Varying Repetitive Control for Better Transient Response and Stochastic Behavior”, Electronics Letters, Vol.: 37, No: 17, pp.1101-1102, August 16, 2001.

1.   Hakan Köroğlu, “Observer-Based Generalized Asymptotic Regulation with Sub-Optimal Transient Response”, Proc. 50th IEEE Conference on Decision and Control, pp.267-272, Orlando, FL, 12 – 15 December 2011.

2.   Hakan Köroğlu & Siep Weiland, “Robust Nonlinear Least-Squares via Consecutive LMI Optimizations”, Proc. American Control Conference, pp. 1311-1312, San Francisco, CA, June 29 - July 01 2011 [attended].

3.   Hakan Köroğlu, “Robust Generalized Asymptotic Regulation via an LPV Controller without Parameter Derivative Dependence”, Proc. 49th IEEE Conference on Decision and Control, pp.4965-4971, Georgia, Atlanta, 15-17 December 2010 [poster presentation; attended].

4.   Can Bikcora, Martijn van Veelen, Hakan Köroğlu, Wim Coene, “Stochastic Methods for Transient Lens Parameter Estimation and Zernike Prediction”, 30^th Benelux Meeting on Systems and Control – Book of Abstracts, page 143, Lommel, Belgium, March 15-17, 2011.

5.   Hakan Köroğlu, Henry Megens, Wim Coene, “Robust Least-Squares Optimization for Enhanced Proximity Matching in Lithography”, Proceedings, Abstracts and Posters of the STW.ICT Conference, Veldhoven, The Netherlands, 18-19 November 2010 [abstract and poster; attended], ISBN: 978-90-73461-67-3.

6.   Andres Marcos, Joost Veenman, Carsten W. Scherer, Gabriele De Zaiacomo, David Mostaza, Murray Kerr, Hakan Köroğlu, Samir Bennani, “Application of LPV Modeling, Design and Analysis Methods to a Re-entry Vehicle”, AIAA Guidance, Navigation, and Control Conference, AIAA-2010-8192, Toronto, Ontario, August 2-5, 2010.

7.   Joost Veenman, Hakan Köroğlu & Carsten W. Scherer, “Analysis of the Controlled NASA HL20 Atmospheric Re-entry Vehicle based on Dynamic IQCs”, AIAA Guidance, Navigation and Control Conference, AIAA 2009-5637, Chicago, IL, August 2009.

8.   Joost Veenman, Carsten W. Scherer & Hakan Köroğlu, “IQC-Based LPV Controller Synthesis for the NASA HL20 Atmospheric Re-entry Vehicle”, AIAA Guidance, Navigation and Control Conference, AIAA 2009-5636, Chicago, IL, August 2009.

9.   Joost Veenman, Hakan Köroğlu & Carsten W. Scherer, “An IQC Approach to Robust Estimation against Perturbations of Smoothly Time-Varying Parameters”, Proc. 47th IEEE Conference on Decision and Control, pp. 2533-2538, Cancun, Mexico, December 2008 [attended].

10. Hakan Köroğlu & Carsten W. Scherer, “Robust Generalized Asymptotic Regulation against Non-Stationary Sinusoidal Disturbances”, Proc. 47th IEEE Conference on Decision and Control, pp. 5426–5431, Cancun, Mexico, December 2008 [attended].

11. Navin K. L. M. Balini, Hakan Köroğlu & Carsten W. Scherer, “LPV Control for Synchronous Disturbance Attenuation in Active Magnetic Bearings”, Proc. ASME 2008 Dynamic Systems and Control Conference, October 20-22, 2008, Ann Arbor, Michigan.

12. Hakan Köroğlu & Carsten W. Scherer, “Robust Controller Synthesis for the Attenuation of Non-stationary Sinusoidal Disturbances with Uncertain Frequencies”, In Proc. IFAC Triennial World Congress, pp. 14115–14120, Seoul, Korea, July 2008 [attended].

13. Hakan Köroğlu & Carsten W. Scherer, “LPV Control for Robust Attenuation of Non-stationary Sinusoidal Disturbances with Measurable Frequencies”, In Proc. IFAC Triennial World Congress, pp. 4928-4933, Seoul, Korea, July 2008 [attended].

14. Sjoerd G. Dietz, Carsten W. Scherer & Hakan Köroğlu, “Robust Controller Synthesis for Disturbance Filter Uncertainty Described by Dynamic Integral Quadratic Constraints”, In Proc. IFAC Triennial World Congress, pp. 1325-1330, Seoul, Korea, July 2008 [attended].

15. Sjoerd G. Dietz, Carsten W. Scherer & Hakan Köroğlu, “Robust Control against Disturbance Model Uncertainty: A Convex Solution” Proc. 46th IEEE Conference on Decision & Control, pp.842-847, New Orleans, LA, December 2007.

16. Hakan Köroğlu & Carsten W. Scherer, “An LPV Control Approach Asymptotic Rejection of Non-stationary Disturbances with Guaranteed Worst-Case Performance”, Proc. American Control Conference, pp. 6085-6090, New York, July 2007 [attended].

17. Hakan Köroğlu & Carsten W. Scherer, “Asymptotic Rejection of Non-Stationary Sinusoidal Disturbances with Guaranteed Worst-Case Performance”, Proc. Philips Conference on Applications of Control Technology – PACT’07, pp. 126-130, Conference Centre Groenendael, Hilvarenbeek,The Netherlands, February 2007 [attended].

18. Hakan Köroğlu & Carsten W. Scherer, “Robust Stability Analysis against Perturbations of Smoothly Time-Varying Parameters”, Proc. 45th IEEE Conference on Decision and Control, pp. 2895–2900, San Diego, CA, December 2006 [attended].

19. Hakan Köroğlu & Carsten W. Scherer, “Robust Stability Analysis Tests for Structured Linear Time-Varying Perturbations With Bounded Rates-of-Variation”, In Proc. IFAC Robust Control Design, Toulousse, France, July, 2006 [attended].

20. Hakan Köroğlu & Carsten W. Scherer, “Robust Performance Analysis for Linear Slowly Time-Varying Perturbations”, In Proc. Joint 44th IEEE Conference on Decision and Control, and European Control Conference, pp. 5752–5757, Sevilla, Spain, December 2005 [attended].

21. Hakan Köroğlu & Carsten W. Scherer, “Robust Stability Analysis for Structured Uncertainties with Bounded Variation Rates”, In Proc. IFAC Triennial World Congress, Prague, Czech Republic, July 2005 [attended].

22. Hakan Köroğlu & Ömer Morgül "Robust LQ Control for Harmonic Reference/Disturbance Signals”, In Proc. 39th IEEE Conference on Decision and Control, pp.3727-3732, Sydney, Australia, December 2000 [attended].

23. Hakan Köroğlu & Ömer Morgül, “Discrete-Time LQ Optimal Repetitive Control”, In Proc. American Control Conference, pp.3287-3291, San Diego, CA, June 1999 [attended].

24. Hakan Köroğlu & Ömer Morgül, “LQ Optimal Design at Countably Many Frequencies”, In Proc. 37th IEEE Conference on Decision and Control, pp.1195-1196, Tampa, FL, December 1998 [attended, but session presentation couldn’t be made due to delayed flight].

25. Hakan Köroğlu & Ömer Morgül, “Parameter Optimized Controller Design Based on Frequency Domain Identification”, presented in Mathematical Theory of Networks and Systems - MTNS96, St. Louis, Missouri, June 1996 [attended; paper not published since there were no proceedings].

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