Hassan K. Khalil


Hassan K. Khalil is an Egyptian-born American electrical engineer and University Distinguished Professor Emeritus at Michigan State University. He specializes in nonlinear control and singular perturbation theory, and is widely known for his textbook Nonlinear Systems, which received the 2002 IFAC Control Engineering Textbook Prize. He was named a Fellow of the Institute of Electrical and Electronics Engineers in 1989 for contributions to singular perturbation theory and its application to control.

Education

Khalil received his B.S. and M.S. degrees in electrical engineering from Cairo University. Moving to the United States for doctoral studies, he earned his Ph.D. from the University of Illinois at Urbana-Champaign under the supervision of Petar V. Kokotovic.

Academic career

Khalil joined Michigan State University as an assistant professor in 1978, the same year he completed his doctorate. Over his career at MSU, he advanced to become University Distinguished Professor in 2003, receiving multiple teaching honors along the way, including the Teacher Scholar Award, the Withrow Distinguished Scholar Award, the Distinguished Faculty Award, and the Withrow Teaching Excellence Award. Throughout his tenure, Khalil also consulted for General Motors and Delco Electronics.
A major focus of Khalil's research program at MSU has been the development of high-gain observers for nonlinear feedback control, a tool that originated at the university and has been advanced through the work of his 16 doctoral students and numerous postdoctoral researchers. Khalil has published over 120 journal papers on singular perturbation methods and nonlinear control.
In professional service, Khalil served as Associate Editor for the IEEE Transactions on Automatic Control, Automatica, and Neural Networks, and later as Editor of Automatica for nonlinear systems and control. He was Program Chair of the 1988 American Control Conference and General Chair of the 1994 conference.
Khalil retired on May 15, 2020, and was granted emeritus status.

Books

Singular Perturbation Methods in Control: Analysis and Design, Academic Press, 1986; reprinted by SIAM, 1999.Nonlinear Systems, Macmillan, 1992; 2nd edition, Prentice Hall, 1996; 3rd edition, Prentice Hall, 2002,.Nonlinear Control, Pearson, 2015,.High-Gain Observers in Nonlinear Feedback Control, SIAM, 2017,.Control Systems: An Introduction, Michigan Publishing Services, 2024.

Selected papers

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Awards and honors