Ghulam Ishaq Khan Institute of Engineering Sciences and Technology

POWER AND CONTROL SYSTEMS RESEARCH GROUP

Introduction

We do research in several areas of system and control theory, a range of control systems applications, and the analysis and design of power systems and power converters. Our research covers a wide variety of problems in control systems, including linear control and nonlinear control, networked and distributed control, adaptive control, robust control, autonomous systems, and discrete event systems. Areas of application include robotics, model order reduction, smart power grids, autonomous aerial vehicles, humanoid robots, environmental monitoring, and psychological systems. Some applications of our work include the design renewable energy sources, the control of induction machines power converter design, modeling and optimization of MEMS.

Research Topics

Krylov subspace methods for model reduction of large-scale systems
Control and model reduction for linear parameter varying systems
Robust control system design for multivariable systems
Neuro-Fuzzy control systems and Nonholonomic Systems
Control Application in MEMS and Power Systems
Low Pass Closed-Loop Direct Adaptive Inverse Control
Renewable energy sources

Members

Faculty

Dr. Nisar Ahmed, Associate Professor

Graduate Students

Raheel Quraishi, PhD Candidate
Rameez Hayat, MS Candidate

Collaborations

Dr. S. A. Bazaz, Professor, CASE, Islamabad

Research Publications

International Journal Publications

N. Ahmed, “Approximation of Large Scale Unstable Systems by the Implicit Restart Techniques”, International Journal for Applied Computational Mathematics, Volume 1, no. 2, pp. 175-189, 2002.
G. Shabbir and N. Ahmed, “Proper Affine Vector Fields in Plane Symmetric Static Space-Times” International Journal for Applied Computational Mathematics, Volume 4, no. 1, pp. 75-83, 2005.
F.U. Rehman and N. Ahmed, “Feedback Stabilization of Nonholonomic Integrator (Brockett's System)”, International Journal of Modeling and Simulation, ACTA Press Canada, Volume 26, no. 3, pp.244-250, 2006. (Indexed by Cambridge Scientific Abstracts, Compendex (Engineering Information), FIZ Karlsruhe and INSPEC.)
M. M. Awais, Shafay Shamail and N. Ahmed, “Dimensionally Reduced Krylov Subspace Model Reduction for Large Scale Systems” Applied Mathematics and Computation, Elsevier. Volume 191, no. 1, pp.21-30, 2007.
F. U. Rehman, M. M. Ahmed and N. Ahmed, “Steering Control Algorithm for Drift Free Control Systems Using Model Decomposition; A Wheeled Mobile Robot of Type (1,1) Example”, International Journal of Robotics and Automation, ACTA Press Canada. Volume 22, no.4, pp. 251-259, 2007. ( ISI Indexed)
L. Khan, I. H. Umrani and N. Ahmed, “Multi-objective PSSs Design for Damping Intra-Area Oscillations in Multi-Machines Power System Using Hierarchical Micro GA ” Journal of Eng. and Appl. Sci., Volume 27 no.1, pp.1-10 Jan-June 2008.
H. M. Usman Sani, Shafaat A. Bazaz, and Nisar Ahmed "Fabless Prototyping Methodology for the Development of SOI based MEMS Microgripper", Journal of Engineering & Technology, World Academy of Science, Issue 64, pp. 492-496, 2010.

Conference Publications

N. Ahmed and M. M. Awais “Application of Oblique Projection Krylov Subspace Method for Large Scale Model Reduction”, Proceedings of the 2001 IEEE International Multi-topic Conference (INMIC), Lahore, Pakistan, pp. 124-130.
N. Ahmed and M. M. Awais “Implicit Restart Scheme for Large Scale Krylov Subspace Model Reduction Method,” Proceedings of the 2001 IEEE International Multi-topic Conference (INMIC), Lahore, Pakistan, pp. 131-138.
Awais, M. M., Shamail, S., Ahmed, N., and Shahid, S. “A New Intelligent Approach Towards Solving State Space Models for Fusion Process.” INMIC 2002, Karachi. December 27-28, 2002.
Fazal-ur-Rehman, N. Ahmed and K. H. Khan “Steering Control of a Rigid Body with Two Torque Actuators “, Proceedings of the 2003 International Bhurban Conference on Applied Sciences and Technology, Bhurban, Pakistan, Volume 2, pp. 573-583.
Badar ul Islam, N. Ahmed, Daud Bhatti, and Shahid Khan “Designing Fuzzy Controllers For Non-Linear Position Control Problems”, Proceedings of the 2003 International Bhurban Conference on Applied Sciences and Technology, Bhurban, Pakistan, Volume 2, pp. 585-591.
Laiq Khan, N. Ahmed and Carlos Lozano, “GA Neuro-Fuzzy Damping Control System for UPFC to Enhance Power System Transient Stability”, Proceedings of the 2003 IEEE International Multi-topic Conference (INMIC), Islamabad, Pakistan, pp. 276-282.
Mian M. Awais, S. Shamail, N. Ahmed, and S. Shahid, “ A Comparative Study of Feed Forward Neural Networks and Radial Basis Neural Networks for Modeling Tokamak Fusion Process”, Proceedings of the 2003 IEEE International Multi-topic Conference (INMIC), Islamabad, Pakistan, pp. 334-339.
Laiq Khan, K. L. Lo and N. Ahmed, “Micro-GA Based Fuzzy Logic Controllers for Coordinated Facts Control”, Proceedings of the 2003 IEEE International Multi-topic Conference (INMIC), Islamabad, Pakistan, pp. 269-275.
Badar ul Islam, N. Ahmed, Daud Bhatti, and Shahid Khan, “Controller Design Using Fuzzy Logic For a Twin Rotor MIMO System”, Proceedings of the 2003 IEEE International Multi-topic Conference (INMIC), Islamabad, Pakistan, pp. 264-268.
L. Khan, I. H. Umrani, N. Ahmed, N. D. Gohar, A. Khaliq “Multi-objective Control System Design for Damping Low Frequency Oscillations in Large Power System using Hierarchical Micro GA”, Fourth IBCAST- 2005, Pakistan.
R. Quraishi, N. Ahmed, L. Khan and F. Azeem “Lyapunov Equations Approximation Using Implicit Restart Scheme”, IEEE International Conference on Emerging Technologies (ICET) pp.324-329 2006 Pakistan.
R. Quraishi, N. Ahmed, L. Khan and F. Azeem “Algebraic Riccati Equation’s Approximation Using Implicit Restart Scheme”, IEEE International Multi-topic Conference (INMIC), pp. 433-437 2006 Pakistan.
M. Bilal Saif, S. A. Bazaz, N. Ahmed, “Interface Electronics and Controller for an Electrostatically actuated MEMS based Microgripper”, 13th IEEE International Multi-topic conference (INMIC), Islamabad Pakistan, pp344- 349 December, 2009.

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