Unified discrete‐map modelling and dynamical behaviour analysis of current mode controlled tri‐state dc–dc converters
نویسندگان
چکیده
منابع مشابه
Analysis of Piecewise Constant Models of Current Mode Controlled DC-DC Converters
Buck, boost, and buck-boost converters constitute large class of dc-dc converters used in practice and are interesting nonlinear dynamical systems. It has been shown earlier that various nonlinear phenomena including subharmonics and chaos can be observed in these converters. In this paper we show that with the simplifying assumption that voltage regulation is achieved in high frequency modulat...
متن کاملA Unified Model for Current-Programmed Converters
AbstructA unified model is established for a currentprogrammed converter, which is both a modification and an extension of familiar models. Inclusion of the sampling effect allows the presence of an additional pole up in the current-loop gain to be derived. The resulting final double-slope asymptote is fixed in position, and the crossover frequency cannot exceed half the switching frequency. A ...
متن کاملUnified Modeling and Measurement of Current-Programmed Converters
A unified model is established for a current-programmed converter, which is both a modification and an extension of familiar models. Inclusion of the sampling effect allows the presence of an additional pole in the currentloop gain to be inferred. The resulting final double-slope asymptote is fixed in position, and the crossover frequency cannot exceed half the switching frequency. A new “stabi...
متن کاملInteraction of Fast-Scale and Slow-Scale bifurcations in Current-Mode Controlled DC/DC converters
This paper investigates the interaction of fast-scale and slow-scale bifurcations in the boost converter under current-mode control operating in continuous conduction mode. Effects of varying some chosen parameters on the qualitative behaviors of the system are studied in detail. Analysis is performed to identify the different types of bifurcation. Boundaries of stable region, slow-scale bifurc...
متن کاملExistence of horseshoe maps in current-mode controlled buck-boost dc/dc converters
In this paper, a buck-boost dc/dc converter under a typical current-mode control is studied. The existence of chaos is proven theoretically in this system. The proof consists of showing that the dynamics of the system is semiconjugate to that of the one-sided shift map, which implies positive entropy of the system and hence chaotic behavior. The essential tool is the horseshoe hypotheses propos...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IET Power Electronics
سال: 2019
ISSN: 1755-4543,1755-4543
DOI: 10.1049/iet-pel.2018.5727