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Output Feedback Stabilization for MIMO Semi-linear Stochastic Systems with Transient Optimisation

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Abstract

This paper investigates the stabilisation problem and consider transient optimisation for a class of the multi-input-multi-output (MIMO) semi-linear stochastic systems. A control algorithm is presented via an m-block backstepping controller design where the closed-loop system has been stabilized in a probabilistic sense and the transient performance is optimisable by optimised by searching the design parameters under the given criterion. In particular, the transient randomness and the probabilistic decoupling will be investigated as case studies. Note that the presented control algorithm can be potentially extended as a framework based on the various performance criteria. To evaluate the effectiveness of this proposed control framework, a numerical example is given with simulation results. In summary, the key contributions of this paper are stated as follows: 1) one block backstepping-based output feedback control design is developed to stabilize the dynamic MIMO semi-linear stochastic systems using a linear estimator; 2) the randomness and probabilistic couplings of the system outputs have been minimized based on the optimisation of the design parameters of the controller; 3) a control framework with transient performance enhancement of multi-variable semi-linear stochastic systems has been discussed.

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Acknowledgements

We would like to thank the editor and the reviewers for their valuable comments. This work was supported by Higher Education Innovation Fund (No. HEIF 2018-2020), De Montfort University, Leicester, UK.

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Correspondence to Qi-Chun Zhang.

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Recommended by Associate Editor Xian-Dong Ma

Qi-Chun Zhang received the B. Eng. in automation in 2008 and the M. Sc. degree in control theory and control engineering in 2010, respectively, from Northeastern University, China. He also received the Ph. D. degree in electrical and electronic engineering from University of Manchester, UK in 2016. Currently, he is senior lecturer in dynamics and control at De Montfort University in Leicester, UK, where his research is supported by vice-chancellor 2020 scheme. Before joining De Montfort University in 2017, he was a senior research officer at University of Essex, UK. From 2011–2013, he was an academic visitor at Control Systems Centre, University of Manchester, UK. He serves over 20 international journals as an active reviewer.

His research interests include stochastic dynamic systems, probabilistic coupling analysis, decoupling control, performance optimisation, brain-computer interface and computational modelling for peripheral nervous systems.

Liang Hu received the B. Eng. and M. Eng. degrees in control engineering from Harbin Institute of Technology, China in 2008 and 2010, respectively, and the Ph. D. degree in computer science from Brunel University London, UK in 2016. He has been a lecturer in intelligent transport systems at De Montfort University, UK since 2018. Prior to that, he did the postdoctoral research at Queen’s University Belfast and Loughborough University, UK.

His research interests include signal processing, control and decision and their applications in autonomous systems and intelligent transport systems.

John Gow received the M. Eng. degree in electronic and electrical engineering from Loughborough University, UK in 1993, and the Ph. D. degree in power electronics from Loughborough University, UK in 1998. He subsequently continued research in the area of power conversion systems for building integrated and large scale solar photovoltaic installations. Subsequent industrial opportunities in power electronics and embedded control led to him acting as a senior design engineer developing hardware and software for digital signal processing (DSP) and microcontroller based embedded control systems along with power chains for inverters, industrial drives and uninterruptible power supplies. He developed a working knowledge of radio-frequency (RF) hardware design through an industrial position developing hardware for radio frequency identification systems as well as a lifelong interest in amateur radio. He now works as associate professor of electronic engineering at De Montfort University, UK.

His research interests include power electronics, high speed embedded systems for control applications and software radio.

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Zhang, QC., Hu, L. & Gow, J. Output Feedback Stabilization for MIMO Semi-linear Stochastic Systems with Transient Optimisation. Int. J. Autom. Comput. 17, 83–95 (2020). https://doi.org/10.1007/s11633-019-1193-8

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