Distributed output feedback MPC with randomly occurring actuator saturation and packet loss |
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Authors: | Yan Song Guoliang Wei Shuai Liu |
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Affiliation: | 1. Department of Control Science Engineering, University of Shanghai for Science Technology, Key Laboratory of Modern Optical System, Shanghai, China;2. Business School, University of Shanghai for Science Technology, Shanghai, China |
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Abstract: | In this paper, a distributed output feedback model predictive control (OFMPC) algorithm is presented for the polytopic uncertain system subject to randomly occurring actuator saturation and packet loss. Compared with the intensively applied state feedback control in MPC, the OFMPC is more feasible to the real world because the system states are often unmeasurable. With taking both actuator saturation and packet loss into account, the presented OFMPC algorithm is more practical. Moreover, by splitting the controller inputs into two independent parts, the presented dynamic output feedback control (DOFC) strategy provides more freedom to the controller design. With the global system decomposed into some subsystems, the computation complexity is reduced, thus the online designing time can be saved. By defining the estimation error function and forming an augmented system to handle the DOFC and by transforming the nonlinear feedback law into a convex hull of linear feedback laws, the distributed controllers are obtained by solving a linear matrix inequality (LMI) optimization problem. Finally, some simulation examples are employed to show the effectiveness of the techniques proposed in this paper. Copyright © 2015 John Wiley & Sons, Ltd. |
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Keywords: | distributed output feedback model predictive control dynamic output feedback control polytopic uncertain system actuator saturation packet loss |
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