標題: A Novel Control Strategy of Circulating Currents in Paralleled Single-Phase Boost Converters With Different Power Sharing for Microgrid Applications
作者: Liao, Yi-Hung
Chen, Hung-Chi
Cheng, Hsiu-Che
Ke, Yu-Lung
Li, Yi-Ta
電機學院
電控工程研究所
College of Electrical and Computer Engineering
Institute of Electrical and Control Engineering
關鍵字: AC/DC converter;circulating currents;common mode;differential mode;microgrid
公開日期: 1-三月-2014
摘要: In this paper, analysis of circulating currents of paralleled single-phase boost converter systems is presented. The dc loop and ac loop circulating currents are clearly explained. In order to eliminate the dc loop circulating currents and reduce switching losses, a simplified pulsewidth modulation strategy is adopted in a paralleled single-phase boost converter. Based on the analysis of circulating currents, common-mode circulating current (CMCC) and differential-mode circulating current (DMCC) are defined. Then, CMCC and DMCC compensators are proposed in a centralized control scheme to reduce the common-mode and differential-mode circulating currents in a parallel system operated in both rectifier and inverter modes with different power sharing for microgrid applications. Converter-paralleled system stability analysis is also presented. Finally, a prototype system is constructed to facilitate the theoretical results as verification. From the experimental results, the proposed control scheme can indeed reduce the circulating currents under equal and/or different power rating conditions in the parallel system.
URI: http://dx.doi.org/10.1109/TIA.2013.2289995
http://hdl.handle.net/11536/23999
ISSN: 0093-9994
DOI: 10.1109/TIA.2013.2289995
期刊: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Volume: 50
Issue: 2
起始頁: 1304
結束頁: 1312
顯示於類別:期刊論文


文件中的檔案:

  1. 000333304000037.pdf