NDLI: A New Isolated Auxiliary Current Pump Module for Load Transient Mitigation of Isolated/Nonisolated Step-Up/Step-Down DC

Content Provider	IEEE Xplore Digital Library
Author	Kolluri, S. Narasamma, N.L.
Copyright Year	1986
Abstract	This paper presents a new isolated auxiliary current pump module (ACPM), to improve the dynamic response of dc-dc converters under load transients. The developed isolated ACPM can be used as a generic auxiliary module for both isolated and nonisolated step-up/step-down dc-dc converters. The isolated ACPM is a low-power bidirectional converter, designed with higher bandwidth and operates only during the load transients. The performance of the developed auxiliary power converter has been evaluated in conjunction with an interleaved boost converter as main converter, which suffers from poor dynamic performance due to inherent right half plane zero effect. A suitable control scheme is designed and implemented for interleaved boost converter operating in conjunction with proposed isolated ACPM. Load current injection circuit employed in the proposed control scheme eliminates the requirement of complex nonlinear control algorithms. The proposed control scheme in particular suits for current-mode controlled converters operating along with isolated ACPM. Experimental results for a 250-W 100-kHz interleaved boost converter prototype with ACPM are presented. The peak overshoot/undershoot and the transient recovery time are reduced significantly with the incorporation of developed isolated ACPM.
Sponsorship	IEEE Power Electronics Society
Starting Page	5991
Ending Page	6000
Page Count	10
File Size	1410696
File Format	PDF
ISSN	08858993
Volume Number	30
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transient analysis DC-DC power converters Inductors Capacitors Topology Power system dynamics load current injection circuit. DC-DC converter interleaved boost converter auxiliary current pump module transient response average currentmode control Average current-mode control (ACMC) auxiliary current pump module (ACPM) dc–dc converter load current injection circuit (LCIC)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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