On piecewise affined large-signal modeling of PWM converters

被引:0
作者
Tahami, F. [1 ]
Mobed, M. [1 ]
Molayee, B. [1 ]
机构
[1] Sharif Univ Technol, Dept Elect Engn, Tehran, Iran
来源
2006 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY, VOLS 1-6 | 2006年
关键词
PWM converter; large signal modeling; piecewise affine approximation;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The most common technique for analysis and control of power electronics circuits is switch averaging. The model is not linear however, and often results in a multiplicative term in the state equations. Hence, it is common to perform a small signal linearization of the model about an operating point. Models obtained with such method involve considerable approximation, and produce results that are limited for higher performance designs. In this paper a Piecewise Affine Approximation (PWA) technique is introduced for modeling of switched circuits. Modeling of a DC-DC buck-boost converter is presented as an illustrative example to show the favorable properties and broad utility of this approach. The approximation preserved the stability of the original system.
引用
收藏
页码:1356 / +
页数:2
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