Common-mode and differential-mode loop gains of paralleled buck converters

Ming Li; Chi Kong Tse

doi:10.1109/ECCE.2012.6342238

Common-mode and differential-mode loop gains of paralleled buck converters

Ming Li, Chi Kong Tse

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

Based on the time-domain decomposition of small-signal model in paralleled buck converters, two equivalent low-order loop gains, namely, common-mode and differential-mode loop gains, are derived to analyze and design the stability of the system with N converter modules. Specifically, the proposed loop gains are applied to two voltage-mode controlled buck converters under active current-sharing control. Experimental verification is performed to validate the effectiveness of the proposed loop gains on locating the stability boundary of design parameters.

Original language	English
Title of host publication	2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
Pages	4295-4300
Number of pages	6
DOIs	https://doi.org/10.1109/ECCE.2012.6342238
Publication status	Published - 17 Dec 2012
Event	4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012 - Raleigh, NC, United States Duration: 15 Sept 2012 → 20 Sept 2012

Conference

Conference	4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012
Country/Territory	United States
City	Raleigh, NC
Period	15/09/12 → 20/09/12

ASJC Scopus subject areas

Energy Engineering and Power Technology
Fuel Technology

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10.1109/ECCE.2012.6342238

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abstract = "Based on the time-domain decomposition of small-signal model in paralleled buck converters, two equivalent low-order loop gains, namely, common-mode and differential-mode loop gains, are derived to analyze and design the stability of the system with N converter modules. Specifically, the proposed loop gains are applied to two voltage-mode controlled buck converters under active current-sharing control. Experimental verification is performed to validate the effectiveness of the proposed loop gains on locating the stability boundary of design parameters.",

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AB - Based on the time-domain decomposition of small-signal model in paralleled buck converters, two equivalent low-order loop gains, namely, common-mode and differential-mode loop gains, are derived to analyze and design the stability of the system with N converter modules. Specifically, the proposed loop gains are applied to two voltage-mode controlled buck converters under active current-sharing control. Experimental verification is performed to validate the effectiveness of the proposed loop gains on locating the stability boundary of design parameters.

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BT - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012

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Common-mode and differential-mode loop gains of paralleled buck converters

Abstract

Conference

ASJC Scopus subject areas

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