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Observability and controllability analysis for sandwich systems with dead-zone

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Abstract

In this paper, an approach to analyze the observability and controllability of sandwich systems with dead-zone is proposed. In this method, a non-smooth state-space function is proposed to describe the sandwich systems with dead-zone which are also non-smooth nonlinear systems. Then, a linearization method based on non-smooth optimization is proposed to derive a linearized state-space function to approximate the non-smooth sandwich systems within a bounded region around the equilibrium points that we are interested in. Afterwards, both observability and controllability matrices are constructed and the methods to analyze the observability as well as controllability of sandwich system with dead-zone are derived. Finally, a numerical example is presented.

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Correspondence to Yonghong Tan.

Additional information

Recommended by Associate Editor Do Wan Kim under the direction of Editor Myotaeg Lim. This work is partially supported by the Research Projects of Science and Technology Commission of Shanghai (Grant Nos. 14140711200 and and 14ZR1430300) and the National Science Foundation of China (NSFC Grant Nos.: 61571302, 61371145, 61203108, and 61171088).

Na Luo is a Ph.D. candidate of Mathematics and Science College in Shanghai Normal University. Presently, she is also a lecturer at the School of General Education, Sanda University, Shanghai, China. Her research interests are in analysis and control for nonlinear dynamic systems.

Yonghong Tan received his Ph.D. degree in electrical engineering in 1996 from the University of Ghent, Ghent, Belgium. He was a postdoctoral fellow at Simon Fraser University, Vancouver, BC, Canada from 1996 to 1998. He is currently a Professor in the College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai, China. Dr. Tan was once a visiting professor at Colorado State University, Fort Collins, USA; Concordia University, Montreal, QC, Canada; Shibaura Institute of Technology, Japan; and University ofWindsor, Canada. He also once held professorships at Guilin University of Electronic Technology and the University of Electronic Science and Technology of China, and moreover, he was an adjunct professor at Shanghai Jiaotong University, Nankai Univerity and Xidian University, respectively. His research interests include modeling and control of nonlinear systems, mechatronics, signal processing and intelligent control. He is the author or co-author of more than 220 articles published in peer review journals and referenced conferences, and he is also the holder of twelve patents.

Ruili Dong received her Ph.D. degree from Shanghai Jiaotong University, Shanghai, China. She is currently an Associate Professor in the College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai. Dr. Dong was once a visiting scholar at Dept. of Mechanical and Industrial Enigineering, Illinois University at Chicago, USA, from 2012 to 2013. Presently, she is a visiting professor at Dresden University of Technology, Germany. Her research interests include mechatronics and identification and control of nonlinear systems. Dr. Dong has published more than 50 papers in peerreview journals and referenced conferences. She also holds six patents.

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Luo, N., Tan, Y. & Dong, R. Observability and controllability analysis for sandwich systems with dead-zone. Int. J. Control Autom. Syst. 14, 188–197 (2016). https://doi.org/10.1007/s12555-015-0015-1

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