An offline predictive control with ellipsoid invariant set for time-variant system
by Rosana Rego; Marcus Costa
International Journal of Modelling, Identification and Control (IJMIC), Vol. 37, No. 2, 2021

Abstract: This paper proposes a new formulation to address constrained robust model predictive control (MPC) off-line scheme for uncertain systems based on a quasi-min-max algorithm with linear matrix inequalities (LMI). The approach involves an off-line design of a robust state observer. The proposed off-line MPC is applied to three state switching cell (3SSC) boost converter. The converter analyses considering the ellipsoids of stability and its projections in the closed loop impulse response. And a comparison is made between the online and off-line performance of the algorithm to show the efficiency of the off-line proposed approach. The results showed that the off-line formulation obtained good results and ensures the stability of the converter.

Online publication date: Tue, 11-Jan-2022

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