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Title: On the effects of voltage loop in paralleled converters under master-slave current sharing
Authors: Huang, Y
Tse, CKM 
Keywords: Analog to digital conversion
Computer networks
Motion control
Motion planning
Photoacoustic effect
Power electronics
Switching circuits
Issue Date: 2006
Publisher: IEEE
Source: IPEMC 2006 : CES/IEEE 5th International Power Electronics and Motion Control Conference, August 14-16, 2006, Shanghai, China : conference proceedings, p. 1517-1521 How to cite?
Abstract: This paper studies the effects of the presence of voltage loops in parallel connected buck switching converters under master-slave current sharing scheme. The system employs a typical proportional-integral (PI) controller for regulation. Comparisons are made for the cases where the slave modules are controlled with and without a voltage loop. Generally, we find that the voltage loop in the slave is helpful in widening the stability range though it is theoretically redundant for the purpose of controlling the output voltage in the small-signal sense. Such a loop provides stable current reference for the slave modules. Effectively, each slave module is under current-mode control by virtue of the current sharing loop, making it a current source. Simulation results under different control configurations are presented to demonstrate the phenomenon.
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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