Theoretical and experimental investigation of the fast- and slow-scale instabilities of a DC-DC converter

被引：181

作者：

Mazumder, SK ^{[1
]}

Nayfeh, AH

Boroyevich, D

机构：

[1] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Ctr Power Elect Syst, Blacksburg, VA 24061 USA

[2] Virginia Polytech Inst & State Univ, Dept Engn Sci & Mech, Blacksburg, VA 24061 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2001年 / 16卷 / 02期

基金：

美国国家科学基金会;

关键词：

bifurcation; converters; differential inclusion; discontinuous systems;

D O I：

10.1109/63.911144

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We use an exact formulation based on nonlinear maps to investigate both the fast-scale and slow-scale instabilities of a voltage-mode buck converter operating in the continuous conduction mode and its interaction with a filter. Comparing the results of the exact model with those of the averaged model shows the shortcomings of the latter in predicting fast-scale instabilities, We show the impact of parasitics on the onset of chaos using a high-frequency model. The experimentally validated theoretical results of this paper provide an improved understanding of the dynamics of the converter beyond the linear regime and this may lead to less conservative control design and newer applications.

引用

页码：201 / 216

页数：16

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