Sensorless Current Sharing in Two-Phase Input-Parallel Output-Parallel DC-DC Converters

被引：0
|
作者：
Lin Yifei [1 ]
Wang Yubin [1 ]
Wang Shanshan [1 ]
机构：
[1] Shandong Univ, Sch Elect Engn, Jinan 250061, Peoples R China
来源：
2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2015年
关键词：
sensorless current sharing; two-phase; input-parallel output-parallel (IPOP) DC-DC converters; dual active bridge (DAB); parameter mismatches;
D O I：
暂无
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 introduces a sensorless current-sharing strategy for two-phase input-parallel output-parallel (IPOP) DC-DC converters. A dual active bridge (DAB) DC-DC converter is chosen as the basic DC-DC converter. With this strategy, the parameter mismatches between phases are estimated by perturbing the duty cycle in one phase and measuring the changes of duty cycles in both phases. Then the duty cycles are adjusted to compensate the mismatches, thus achieving current sharing without current sensors. The strategy is verified through both simulation and experimental implementation with a 30V-to-80V, 256W, 20kHz, two-phase IPOP DC-DC converter.
引用
收藏
页码：1919 / 1924
页数：6
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