Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11033
Title: Unified equivalent modeling for stability analysis of parallel-connected DC/DC converters
Authors: Li, M
Tse, CK 
Iu, HHC
Ma, X
Keywords: Active current sharing
averaged model
bifurcation
parallel-connected buck converters
stability
Issue Date: 2010
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on circuits and systems. II, Express briefs, 2010, v. 57, no. 11, 5613924, p. 898-902 How to cite?
Journal: IEEE transactions on circuits and systems. II, Express briefs 
Abstract: A unified equivalent modeling approach is proposed for enabling simple and effective analysis of stability of parallel-connected buck converters. Two kinds of active current-sharing schemes are considered, i.e., the masterslave scheme and democratic scheme. By applying elementary transformation to the Jacobian of the averaged model, two decoupled subsystems (which determine common-mode and differential-mode stabilities, respectively) have been found, irrespective of the specific type of active current-sharing scheme. From the decoupled subsystems, the parameters of interest that affect different stability issues are clearly identified. Results from this work greatly simplify the stability analysis and design of parallel-connected dcdc converters.
URI: http://hdl.handle.net/10397/11033
ISSN: 1549-7747
EISSN: 1558-3791
DOI: 10.1109/TCSII.2010.2067751
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