Fundamental Considerations of Three-Level DC-DC Converters: Topologies, Analyses, and Control

This paper discusses the basic family of three-level (TL) dc-dc converters. The origin of TL converters and their basic topological variations are described. Systematic procedures leading to improved and simplified circuit topologies are discussed. A feedforward control scheme that ensures the prope...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. I, Regular papers Vol. 55; no. 11; pp. 3733 - 3743
Main Authors: Xinbo Ruan, Bin Li, Qianhong Chen, Siew-Chong Tan, Tse, C.K.
Format: Journal Article
Language:English
Published: New York IEEE 01.12.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Basic converters
Circuit topology
Circuits
Conversion
Converters
DC-DC power conversion
Dynamic response
Electric potential
feedforward control
full-bridge (FB) converter
interleaved control
Inverters
Leg
Power conversion
Power harmonic filters
Stress
Switches
Switching converters
three-level (TL) converter
Topology
Voltage
DC-DC power conversion
full-bridge converter
interleaved control
feedforward control
three-level converter
ISSN:1549-8328, 1558-0806
Online Access:Get full text
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Description
Summary:This paper discusses the basic family of three-level (TL) dc-dc converters. The origin of TL converters and their basic topological variations are described. Systematic procedures leading to improved and simplified circuit topologies are discussed. A feedforward control scheme that ensures the proper functioning of these converters is proposed. Moreover, the virtues and drawbacks of these converters as compared to conventional converters are highlighted. In particular, the advantages of TL converters include reduced voltage stress of the switches, reduced filter size, and improved dynamic response. It is shown that TL converters are highly suitable for high input/output voltage and medium-to-high-power dc-dc power conversions.
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ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2008.927218