作者
Haochen Shi, Huiqing Wen, Jie Chen, Yihua Hu, Lin Jiang, Guipeng Chen, Jieming Ma
发表日期
2018/3/23
期刊
IEEE Transactions on Industry Applications
卷号
54
期号
4
页码范围
3483-3496
出版商
IEEE
简介
As key component for the flexible dc distributed power system, the dual active bridge (DAB)-converter-based solid-state transformer (SST) with high efficiency for a wide operating range is essential. However, with the traditional phase-shift control, high backflow power and current stress will significantly affect the conversion efficiency. In this paper, the backflow power characteristics in both sides of DAB-based SST converters are comprehensively analyzed. On this basis, complete transmission power, backflow power, and peak current mathematical models are established. Then, a minimum-backflow-power-based extended-phase-shift control strategy is proposed with the determination of optimal phase-shift pairs by using the Karush-Kuhn-Tucker function for various scenarios. The backflow power and current stress curves with different algorithms are compared. It shows the proposed control can improve the output …
学术搜索中的文章
Minimum-backflow-power scheme of DAB-based solid-state transformer with extended-phase-shift control
H Shi, H Wen, J Chen, Y Hu, L Jiang, G Chen, J Ma - IEEE Transactions on Industry Applications, 2018