Title :
Distributed power balance strategy for DC/DC converters in solid state transformer
Author :
Xunwei Yu ; Xu She ; Huang, A. ; Liming Liu
Author_Institution :
FREEDM Center, NC State Univ., Raleigh, NC, USA
Abstract :
A distributed power balance strategy applied for DC/DC stage in Solid State Transformer (SST) is presented in this paper. Firstly, the essence of unbalanced power issue in dc/dc stage of SST is analyzed theoretically. Then an adapted droop method is developed. The proposed control strategy can not only distributed balance the dc/dc stage output power, but eliminate the voltage drop caused by the conventional droop control. In the end, simulation and experimental results are provided for verifying the proposed method.
Keywords :
DC-DC power convertors; power transformers; SST; dc-dc converters; distributed power balance strategy; droop control; solid state transformer; voltage drop elimination; Adaptation models; Equations; Inverters; Mathematical model; Rectifiers; Topology; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803428
