A High Step-Up Switched-Capacitor 13-Level Inverter With Reduced Number of Switches

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This letter presents a new single-phase 13-level switched-capacitor inverter with a reduced number of switches and a voltage boost gain of 6. The proposed topology with a single dc source can achieve 13-level output, sextuple boost, and self-voltage balance of capacitors using only 14 switches. The proposed inverter does not use a back-end H-bridge with four switches that must withstand the peak load voltage, and the voltage stress of all switches does not exceed half of the peak load voltage. The operation principle including the self-voltage balance of capacitors is described in detail. An analysis of the proposed inverter in comparison to recent topologies with a single-input dc source is performed mainly in terms of the number of switches and cost function. Simulation and experimental results verify the feasibility of the proposed topology.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2021-03
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON POWER ELECTRONICS, v.36, no.3, pp.2505 - 2509

ISSN
0885-8993
DOI
10.1109/TPEL.2020.3012282
URI
http://hdl.handle.net/10203/278369
Appears in Collection
EE-Journal Papers(저널논문)
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