Improved Time Optimal Control of a Buck Converter Based on Capacitor Current

被引：74

作者：

Kapat, Santanu ^{[1
]}

Krein, Philip T. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Kharagpur 721302, W Bengal, India

[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2012年 / 27卷 / 03期

关键词：

Buck converter; capacitor current; characteristic impedance; hybrid control; time optimal control (TOC); DC-DC CONVERTERS; 2ND-ORDER SWITCHING SURFACES; OPTIMAL DIGITAL-CONTROL; BOUNDARY CONTROL; ORDER; MODE;

D O I：

10.1109/TPEL.2011.2163419

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：

Time optimal control (TOC) is a technique to provide fast transient recovery in dc-dc converters. Prior published approaches are incomplete in the formulation of TOC because they ignore voltage-deviation effects on inductor-current and load-current dynamics during a large-signal recovery. An accurate TOC algorithm based on capacitor current is presented. This method achieves minimum transient recovery time for load transients and tracking in a buck converter. The minimum recovery time is preserved even with a transient-detection delay. This control configuration ensures large-signal stability in a sense similar to that of sliding-mode control. The results are demonstrated in an experimental buck converter that uses a digital control algorithm.

引用

页码：1444 / 1454

页数：11

共 28 条

[1]

Burns W. W. III, 1977, Power Electronics Specialists Conference 1977, P70

[2] STATE TRAJECTORIES USED TO OBSERVE AND CONTROL DC-TO-DC CONVERTERS [J].

BURNS, WW ;

WILSON, TG .

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1976, 12 (06) :706-717

[3]

Capel A, 1996, IEEE POWER ELECTRON, P846, DOI 10.1109/PESC.1996.548680

[4] High-order switching surface in boundary control of inverters [J].

Chiu, Julian Yat-Chung ;

Leung, Kelvin Ka-Sing ;

Chung, Henry Shu-Hung .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2007, 22 (05) :1753-1765

[5] Current-Limited Time-Optimal Response in Digitally Controlled DC-DC Converters [J].

Corradini, Luca ;

Babazadeh, Amir ;

Bjeletic, Aleksandar ;

Maksimovic, Dragan .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2010, 25 (11) :2869-2880

[6] Parameter-Independent Time-Optimal Digital Control for Point-of-Load Converters [J].

Corradini, Luca ;

Costabeber, Alessandro ;

Mattavelli, Paolo ;

Saggini, Stefano .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2009, 24 (10) :2235-2248

[7]

Erickson R.W., 2007, Fundamentals of power electronics

[8] A new digital control algorithm to achieve optimal dynamic performance in DC-to-DC converters [J].

Feng, Guang ;

Meyer, Eric ;

Liu, Yan-Fei .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2007, 22 (04) :1489-1498

[9]

Krein P.T., 1998, ELEMENTS POWER ELECT

[10]

Krein PT, 2006, ANN WORKSH COMP POW, P48

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