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Robust fixed-structure cascade controller for a quadratic boost converter
Author(s)
Srithongchai, Pitsanu
Date Issued
December 1, 2010
Type
Conference Paper
Abstract
In this paper, a new technique for designing a robust cascade controller for a quadratic boost converter is proposed. A performance index in H infinity loop shaping control, stability margin, is adopted as the objective function in our optimization control problem; GA is used to solve this problem to evaluate the optimal controller. Conditions of cascade control are adopted as constraints in our optimization problem. In addition, pre-compensator weight which is normally difficult to be selected is simultaneously determined with the controller. Comparative study with the conventional H infinity loop shaping is presented. Finally, simulation results verify the effectiveness of the proposed technique.
Citation
Proceedings of the International Multiconference of Engineers and Computer Scientists 2010 Imecs 2010, 1030-1033, 2010