Stabilizing Unknown and Unstable Periodic Orbits in DC-DC Converters by Temporal Perturbations of the Switching Time

Hanh Thi-My NGUYEN  Tadashi TSUBONE  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A   No.1   pp.331-339
Publication Date: 2015/01/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E98.A.331
Type of Manuscript: PAPER
Category: Nonlinear Problems
switched dynamical systems,  chaos control,  unstable periodic orbits,  stability transformation method,  DC-DC converters,  

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A dynamic controller, based on the Stability Transformation Method (STM), has been used to stabilize unknown and unstable periodic orbits (UPOs) in dynamical systems. An advantage of the control method is that it can stabilize unknown UPOs. In this study, we introduce a novel control method, based on STM, to stabilize UPOs in DC-DC switching power converters. The idea of the proposed method is to apply temporal perturbations to the switching time. These perturbations are calculated without information of the locations of the target orbits. The effectiveness of the proposed method is verified by numerical simulations and laboratory measurements.