Dynamic Response Improvement in a Three-Level Buck Type Converter
Compared to the conventional Buck converter, the equivalent switching frequency in the three-level Buck converter (TL-Buck) is doubled. This leads to a smaller output inductance required for the same inductor current ripple. Therefore, the dynamic response will be faster than that of the conventional Buck converter. In this paper, to further improve the dynamic performance, the current feed-forward control scheme is applied to the TL-Buck converter. To validate the effectiveness of the proposed topology and controller, both Matlab/Simulink based simulation and experimental results are presented. The main advantages of the proposed approach include faster dynamic response, simple topology configuration, and simple controller implementation.
L. Shi et al., "Dynamic Response Improvement in a Three-Level Buck Type Converter," Proceedings of the 2nd Annual IEEE Energy Conversion Congress and Exposition (2010, Atlanta, GA), pp. 1952 - 1958, Institute of Electrical and Electronics Engineers (IEEE), Sep 2010.
The definitive version is available at https://doi.org/10.1109/ECCE.2010.5618136
2nd Annual IEEE Energy Conversion Congress and Exposition (2010: Sep. 12-16, Atlanta, GA)
Electrical and Computer Engineering
Keywords and Phrases
Buck Converters; Controller Implementation; Dynamic Performance; Feed-Forward Control Scheme; Inductor Currents; MATLAB/Simulink; Overshoot/Undershoot Voltage; Recovery Time; Simple Topology; Three-Level; Dynamic Response; Energy Conversion; HVDC Power Transmission; Topology; DC-DC Converters
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
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01 Sep 2010