Selection of a curved switching surface for buck converters

被引：110

作者：

Ordonez, Martin ^{[1
]}

Iqbal, Mohammad T. ^{[1
]}

Quaicoe, John E. ^{[1
]}

机构：

[1] Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NF A1B 3X5, Canada

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2006年 / 21卷 / 04期

关键词：

normalized switching surface (SS); buck converter; large-signal transient response;

D O I：

10.1109/TPEL.2006.879049

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：

A general procedure for the selection of a curved switching surface (SS) to control buck-type converters is presented in this letter. The analysis is based on the normalized representation of ideal SSs for different loading conditions. The normalization process leads to a unique representation of the SSs for any possible buck converter. A set of graphics in three dimensions is introduced to give a spatial sense of the behavior of the converter and its control requirements during transients. As a result of the investigation, a switching surface referred to in this letter as the natural unloaded SS is selected, providing excellent transient behavior and no overshoot during startup. For any buck converter with typical parameters; this control scheme produces, in one switching action, a minimum of 99% of the desired output voltage. The general concept of using second-order SS is also geometrically analyzed in this letter to clarify its characteristic features and disadvantages. Experimental results for a typical buck converter are presented to illustrate the transient behavior of the converter during startup and sudden load changes. The results confirm the virtues of the control scheme.

引用

页码：1148 / 1153

页数：6

共 7 条

[1]

Krein P. T., 2001, NONLINEAR PHENOMENA

[2]

Leung K. K. S., 2004, IEEE Power Electronics Letters, V2, P63, DOI 10.1109/LPEL.2004.834796

[3] A comparative study of the boundary control of buck converters using first- and second-order switching surfaces - Part I: Continuous conduction mode [J].

Leung, KKS ;

Chung, HSH .

2005 IEEE 36th Power Electronic Specialists Conference (PESC), Vols 1-3, 2005, :2133-2139

[4] A novel fuel cell simulator [J].

Ordonez, M ;

Iqbal, MT ;

Quaicoe, JE .

2005 IEEE 36th Power Electronic Specialists Conference (PESC), Vols 1-3, 2005, :178-184

[5] SLIDING MOTIONS IN BILINEAR SWITCHED NETWORKS [J].

SIRARAMIREZ, H .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, 1987, 34 (08) :919-933

[6]

Spiazzi G., 2002, POWER ELECT HDB

[7]

[No title captured]

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