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Hybrid model predictive control based on wireless sensor feedback: An experimental study
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2010 (English)In: International Journal of Robust and Nonlinear Control, ISSN 1049-8923, E-ISSN 1099-1239, Vol. 20, no 2, 209-225 p.Article in journal (Refereed) Published
Abstract [en]

Design and experimental validation of model predictive control (MPC) of a hybrid dynamical laboratory process with wireless sensors is presented. The laboratory process consists of four infrared lamps, controlled in pairs by two on/off switches, and of a transport belt, where moving parts equipped with wireless sensors are heated by the lamps. The process, which is motivated by heating processes in the plastic and printing industry, presents interesting hybrid dynamics. By approximating the stationary heat spatial distribution as a piecewise affine function of the position along the belt, the resulting plant model is a hybrid dynamical system. The control architecture is based on the reference governor approach: the process is actuated by a local controller, while a hybrid MPC algorithm running on a remote base station sends optimal belt velocity setpoints and lamp on/off commands over a wireless link, exploiting the sensor information received through the wireless network. A discrete-time hybrid model of the process is used for the hybrid MPC algorithm and for the state estimator. The physical modelling of the process and the hybrid MPC algorithm are presented in detail, together with the hardware and software architectures. The experimental results show that the presented theoretical framework is well suited for control of the new laboratory process, and that the process can be used as a prototype system for evaluating hybrid and networked control strategies.

Place, publisher, year, edition, pages
2010. Vol. 20, no 2, 209-225 p.
Keyword [en]
model predictive control, hybrid dynamical systems, wireless sensor, networks, experimental process, networked control-systems, constraints, discrete, design, state
National Category
Control Engineering
URN: urn:nbn:se:kth:diva-19109DOI: 10.1002/rnc.1451ISI: 000273545600007ScopusID: 2-s2.0-75749119693OAI: diva2:337156
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2012-01-16

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