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Title: Study of stability regions in parallel connected boost converters
Authors: Huang, Y
Tse, CKM 
Issue Date: 2006
Source: IPEMC 2006 : CES/IEEE 5th International Power Electronics and Motion Control Conference, August 14-16, 2006, Shanghai, China : conference proceedings, p. 580-584
Abstract: This paper describes the coexisting attractors of parallel connected boost switching converters under a master-slave current sharing scheme. We present the basins of attraction of desired and undesired attractors, which provide design information on the conditions for hot-swap operations. The system employs a typical proportional-integral (PI) controller for regulation. It is shown that the system will converge to different attractors for different initial conditions with the same control parameters. Simulation results are given to illustrate the phenomenon. This study is relevant to practical design. Specifically, we show that the stability regions obtained from linear methods (i.e., considering only local stability) can be over-optimistic as the global stability regions are found to be more restrictive in the parameter space.
Keywords: Architectural design
Computer networks
Control system analysis
Control theory
Motion control
Motion planning
Parameter estimation
Power electronics
Switching circuits
Publisher: IEEE
ISBN: 1424404495
Rights: © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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