Short Biography:

Hasan Komurcugil (Senior Member, IEEE) received the Ph.D. degree in 1998 from the Eastern Mediterranean University, North Cyprus, Turkey, in electrical engineering.
He is currently full-time Professor at the Eastern Mediterranean University. From 2004 to 2010, he was the Head of the Computer Engineering Department. In 2010, he played an active role in preparing the department's first self-study report for the use of Accreditation Board for Engineering and Technology. In 2010, he was elected as the as the Board Member of Higher Education, Planning, Evaluation, Accreditation and Coordination Council in North Cyprus. From 2010 to 2019, he played active role in evaluating the universities in North Cyprus. In 2022, he visited the Electrical and Computer Engineering Program of the Texas A&M University at Qatar as an Associate Research Scientist. His research interests include power electronics and innovative control methods for power converters such as sliding mode control, Lyapunov-based control, and model predictive control. He is a coauthor of two books and one book chapter.
He has over 75 journal publications which include more than 40 IEEE Transactions. He was the recipient of the best presentation recognitions at the 41st and 42nd annual conferences of the IEEE Industrial Electronics Society (IECON) in 2015 and 2016, respectively. He is Senior Member of the IEEE and a member of the IEEE Industrial Electronics Society (IES). Also, he is the Chair of the Renewable Energy Systems Subcommitee of Power Electronics Technical Committee of IES and member of two major committees (Awards and Honor Committee and Publications Committee) of IES.
He served as the Corresponding Guest Associate Editor of the IEEE TRANSACTIONS ON ENERGY CONVERSION and Guest Editor of the IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS. Currently, he serves as the Associate Editor of the IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS and the IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS.

Abstract:

In the last decades, the sliding mode control (SMC) method has gained popularity in many areas such as robotics, aerial vehicles, power electronics, and electrical drives. This popularity comes from the distinguished features of the SMC which include fast dynamic response, insensitivity to parameter variations and disturbances, order reduction, and implementation simplicity. This presentation is limited to the sliding mode control of various power converters whose structure is subject to variations due to the switches and diodes. This implies that the position of the switches are always changed by the pulse width modulation (PWM) signals. Therefore, the fundamental operating principle of SMC developed for a specific power converter is usually based on by altering the dynamics of the power converter by applying a discontinuous control input that forces the error variables to slide along the predetermined surface called the sliding surface. Despite of these attractive features, the SMC method suffers from chattering (i.e.: zigzag movements on the sliding surface) resulting in low control accuracy and losses in the power converters.
Firstly, the the fundamentals of SMC theory for controlling power converters is explained briefly. Then, the design of continuous-time SMC (the sliding surface function design, sliding coefficient selection, control input selection, chattering reduction and modulation technique) is presented. Thereafter, the SMC of various power converters (DC-DC buck converter, grid-connected inverter, UPS inverter, dynamic voltage restorer, and rectifier are presented with simulation as well as experimentally verified results. Finally, some conclusions are derived.