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A new step up nine level switched capacitor multilevel inverter

  • Sharvendra Kumar Omre ORCID logo EMAIL logo , Ritula Thakur and Kaibalya Prasad Panda ORCID logo
Published/Copyright: June 2, 2025
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Abstract

In response to rising expectations for more efficient and better power generation, the switched-capacitor multilevel inverter (SCMLI) was developed. Most recently, SCMLIs were created to allow for step-up ac output via inversion and single-stage voltage boosting. This study presents a boost type single source nine-level (9-level) SCMLI that uses two capacitors and one diode to reduce the number of components. The capacitor’s voltage boost from a single source is achieved through the series-parallel connecting procedure. No more than twice the input voltage can be applied to the semiconductor devices under any given condition. To raise the voltage levels without adding more dc input, the suggested SCMLI can be expanded with a minimal number of components. After a thorough evaluation of the power losses and circuit performance, the design is confirmed to be superior by comparing it to newly designed single-phase 9-level MLIs. To confirm the key characteristics of the 9-level SCMLI in dynamic operational settings, we offer comprehensive simulation and experimental findings.


Corresponding author: Sharvendra Kumar Omre, Department of Electrical Engineering, NITTTR, Chandigarh, India, E-mail:

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: Sharvendra Kumar Omre: Conceptualization, Designed the topology, Parameters calculations, Methodology, Comparative study, Validation, Investigation, Writing-original draft preparation. Ritula Thakur: Conceptualization, Validation, Results analysis, Investigation, Writing-review and editing, Supervision. Kaibalya Prasad Panda: Conceptualization, Validation, Results analysis, Investigation, Writing-review and editing, Supervision. All authors contributed significantly to the work’s idea and design, as well as the acquisition and analysis. The final version to be published was approved by all authors.

  4. Use of Large Language Models, AI and Machine Learning Tools: None Declared.

  5. Conflict of interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Received: 2025-01-04
Accepted: 2025-05-06
Published Online: 2025-06-02

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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