DC-link voltage balancing in cascaded H-Bridge converters
نویسندگان
چکیده
منابع مشابه
Voltage Regulation Using Phase Shift Modulation in Single-dc-source or Solar Voltage Source Using Cascaded H-bridge Multilevel Converters
Cascaded H-bridge multilevel power electronic converters generally require several dc sources. An alternative option is to replace all the separate dc sources feeding the H-bridge cells with capacitors, leaving only one H-bridge cell with a real dc voltage source. This will yield a cost-effective converter. However, the required capacitor voltage balancing is challenging. In this paper, using t...
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Linear AC power supplies can be replaced by their nonlinear switching counterparts due to the lower voltage drops and higher efficiency and power density of switching-mode inverters. Multilevel cascaded H-bridge (CHB) converters are the preferred inverter structure because of modular configuration, control, and protection. The output voltage quality in CHB converters depends on the number of ou...
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Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded Hbridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DCbus capacitor voltage control, a new, balance circui...
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ژورنال
عنوان ژورنال: Archives of Electrical Engineering
سال: 2014
ISSN: 2300-2506
DOI: 10.2478/aee-2014-0032