Abstract
This paper deals the problem of integral sliding mode control using decoupled disturbance compensator for discrete-time systems with mismatched disturbances. The proposed method allows the disturbance compensation to be modified separately from the control input, since the two inputs of system are completely decoupled. In the developed method, the actual disturbance is estimated by the decoupled disturbance compensator (DDC) method to design the control input and stabilize the system. Integral sliding mode control with DDC scheme minimizes the control effort and improves the system performance. Main advantage of this method is to eliminate the reaching phase and reduce the control effort, simultaneously. Finally, simulation results are shown to demonstrate the usefulness of the presented methodology.
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This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2019R1I1A3A01060151).
Satnesh Singh received his B.Tech. degree in the Department of Electrical & Electronics Engineering from Uttar Pradesh Technical University Lucknow, India (2009), and an M.Tech. degree in signal processing & control, Electrical Engineering Department from National Institute of Technology Hamirpur, India (2011). Subsequently, he obtained his Ph.D. degree in control & automation from the Department of Electrical Engineering, Indian Institute of Technology (IIT) Delhi, India in 2019. After a brief stint at IIT Delhi as a Postdoctoral fellow from May 2019 to December 2019, he moved to Korea where he worked as a postdoctoral fellow at Seoul National University from January 2020 to August 2020. Currently, he is working as a postdoctoral fellow at Kyungpook National University, Daegu, Korea. He is the main author of the book Discrete-time stochastic sliding mode control using functional observation (Springer, 2020). He has authored and coauthored more than 20 international publications which include monograph, book chapter, journal articles, and conference papers. His research interests include linear and non-linear systems in sliding mode control, functional observers, time-delay and stochastic system.
Sangmoon Lee received his B.S. degree in electronics engineering from Kyungpook National University, Daegu, Korea, in 1999, his M.S and Ph.D. degrees in electronics engineering from POSTECH, Pohang, Korea, in 2001 and 2006, respectively. He is currently a Professor with the School of Electronics Engineering, Kyungpook National University. His main research interests include cyber physical systems control, networked control systems, nonlinear systems, fuzzy systems, robust control, model predictive control, and its industrial applications.
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Singh, S., Lee, S. Design of Integral Sliding Mode Control Using Decoupled Disturbance Compensator with Mismatched Disturbances. Int. J. Control Autom. Syst. 19, 3264–3272 (2021). https://doi.org/10.1007/s12555-020-0834-6
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DOI: https://doi.org/10.1007/s12555-020-0834-6