Performance prediction of DC-DC converters with impedances as loads

被引：55
作者：
Li, P [1 ]
Lehman, B [1 ]
机构：
[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2004年 / 19卷 / 01期
关键词：
bandwidth; dc-dc converters; gain margin; outer loop gain; phase margin;
D O I：
10.1109/TPEL.2003.820560
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：
This paper presents a method of predicting the outer loop gain of dc-dc converters when there is a general (nonresistive) impedance as a load. Based on this prediction, it is possible to then derive a corresponding phase margin, gain margin and bandwidth in order to define a dc-dc converter's stable operating area. Two applications of the method are presented for performance prediction in: 1) dc-dc converters with additional capacitors placed across their load; 2) source converters in a distributed power system. In both applications, the theoretical predictions match closely to the experimental data.
引用
收藏
页码：201 / 209
页数：9
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