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A single-source switched-capacitor based step-up multilevel inverter with reduced components
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Panda, Kaibalya Prasad, Bana, Prabhat Ranjan, Kiselychnyk, Oleh, Wang, Jihong and Panda, Gayadhar (2021) A single-source switched-capacitor based step-up multilevel inverter with reduced components. IEEE Transactions on Industry Applications, 57 (4). pp. 3801-3811. doi:10.1109/TIA.2021.3068076 ISSN 0093-9994.
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Official URL: http://dx.doi.org/10.1109/TIA.2021.3068076
Abstract
Switched-capacitor based multilevel inverters (SC MLIs) have received a great deal of interest that reduces the dc source requirement and improves the power quality. However, multiple dc sources and requirement of a large number of switches to generate a high-quality boost output are the fundamental issues in the SC MLIs. This paper presents a stepup 17-level SC MLI using reduced number of switches, three capacitors and a single dc source. The steady-state voltage across the capacitors is maintained in the ratio 1:2:0.5 that contributes to quadruple boosting ability without using any auxiliary capacitor voltage balancing circuit. Besides, lower switch count in the conduction path and operation of 50 % of the switches at fundamental frequency ensures total power loss reduction in the proposed circuit. A comparative assessment with recently developed 17-level MLIs in terms of the number of components, gain, stress and cost factor elucidates the advantages of the proposed MLI. After a detailed circuit analysis and loss evaluation, simulations are performed to verify the step-up and inherent balancing features of the proposed MLI. Further, using both the fundamental frequency and high-frequency switching techniques, extensive experimental test results are presented under different transient conditions to validate the operational feasibility of the 17-level prototype.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Electric inverters, Industrial electronics | ||||||||
Journal or Publication Title: | IEEE Transactions on Industry Applications | ||||||||
Publisher: | IEEE | ||||||||
ISSN: | 0093-9994 | ||||||||
Official Date: | July 2021 | ||||||||
Dates: |
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Volume: | 57 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 3801-3811 | ||||||||
DOI: | 10.1109/TIA.2021.3068076 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 22 March 2021 | ||||||||
Date of first compliant Open Access: | 22 March 2021 | ||||||||
RIOXX Funder/Project Grant: |
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