Experimental validation of new self-voltage balanced 9L-ANPC inverter for photovoltaic applications

Sathik, M. Jagabar and Almakhles, Dhafer J. and Sandeep, N. and Siddique, Marif Daula (2021) Experimental validation of new self-voltage balanced 9L-ANPC inverter for photovoltaic applications. Scientific Reports, 11 (1). ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-021-84531-z.

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Multilevel inverters play an important role in extracting the power from renewable energy resources and delivering the output voltage with high quality to the load. This paper proposes a new single-stage switched capacitor nine-level inverter, which comprises an improved T-type inverter, auxiliary switch, and switched cell unit. The proposed topology effectively reduces the DC-link capacitor voltage and exhibits superior performance over recently switched-capacitor inverter topologies in terms of the number of power components and blocking voltage of the switches. A level-shifted multilevel pulse width modulation scheme with a modified triangular carrier wave is implemented to produce a high-quality stepped output voltage waveform with low switching frequency. The proposed nine-level inverter's effectiveness, driven by the recommended modulation technique, is experimentally verified under varying load conditions. The power loss and efficiency for the proposed nine-level inverter are thoroughly discussed with different loads.

Item Type: Article
Uncontrolled Keywords: Self-voltage balanced 9L-ANPC inverter; Photovoltaic applications; T-type inverter
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Mar 2022 02:21
Last Modified: 08 Mar 2022 02:21
URI: http://eprints.um.edu.my/id/eprint/26483

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