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http://dx.doi.org/10.5302/J.ICROS.2012.18.2.149

Invariant Set Based Model Predictive Control of a Three-Phase Inverter System  

Lim, Jae-Sik (Research Center of Electrical and Information Technology, Seoul National University of Science and Technology)
Park, Hyo-Seong (Dept. of Control and Instrumentation Engineering, Seoul National University of Science and Technology)
Lee, Young-Il (Dept. of Control and Instrumentation Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.18, no.2, 2012 , pp. 149-155 More about this Journal
Abstract
This paper provides an efficient model predictive control for the output voltage control of three-phase inverter system which includes output LC filters. Use of SVPWM (Space Vector Pulse-Width-Modulation) and the rotating d-q frame is made to obtain an input constrained dynamic model of the inverter system. From the measured/estimated output current and reference output voltage, corresponding equilibrium values of the inductor current and the control input are computed. Derivation of a feasible and invariant set around the equilibrium state is made and then a receding horizon strategy which steers the current state deep into the invariant set is proposed. In order to remove offset error, use of disturbance observer is made in the form of state estimator. The efficacy of the proposed method is verified through simulations.
Keywords
three-phase inverter; MPC (Model Predictive Control); invariant set;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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