Multilevel converters have gained popularity in high-power applications due to their low switch voltage stress and modularity. Cascaded H-bridge converters are a promising breed of multilevel converters, which generally require several independent dc sources. Using phase-shift modulation, a new control method for cascaded H-bridge multilevel converters with only one independent dc source per phase is presented in this paper. Unlike the conventional approaches, the proposed method has a wide voltage regulation range over the capacitors replacing the dc sources in the H-bridge converter cells.
J. Liao et al., "A New Control Method for Single-DC-Source Cascaded H-Bridge Multilevel Converters using Phase-Shift Modulation," Proceedings of the 23rd Annual IEEE Applied Power Electronics Conference and Exposition (2008, Austin, TX), pp. 886-890, Institute of Electrical and Electronics Engineers (IEEE), Feb 2008.
The definitive version is available at http://dx.doi.org/10.1109/APEC.2008.4522825
23rd Annual IEEE Applied Power Electronics Conference and Exposition (2008: Feb. 24-28, Austin, TX)
Electrical and Computer Engineering
Keywords and Phrases
H-Bridge Cell; Cascaded Converters; Multilevel Converter; Power Capacitors; Switching Convertors; Bridge Circuits; Bridges; Electric Inverters; Exhibitions; Modulation; Phase Shift; Voltage Regulators; Cascaded H-Bridge; Control Methods; DC Sources; H Bridges; High-Power Applications; Multi-Level Converters; Phase-Shift Modulation; Switch Voltage; Voltage Regulations; Power Electronics
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Article - Conference proceedings
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