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A Single Source Switched Capacitor Seven-Level Boost Inverter for Solar PV Applications

International Journal of Electrical and Electronics Engineering
© 2023 by SSRG - IJEEE Journal
Volume 10 Issue 9
Year of Publication : 2023
Authors : K. Sarada, Deepak Prakash Kadam, Sharana Reddy, Priya R. Patil, Siva Sankara Naik Azamira, M. Ramprasad Reddy
10.14445/23488379/IJEEE-V10I9P107
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How to Cite?

K. Sarada, Deepak Prakash Kadam, Sharana Reddy, Priya R. Patil, Siva Sankara Naik Azamira, M. Ramprasad Reddy, "A Single Source Switched Capacitor Seven-Level Boost Inverter for Solar PV Applications," SSRG International Journal of Electrical and Electronics Engineering, vol. 10,  no. 9, pp. 76-85, 2023. Crossref, https://doi.org/10.14445/23488379/IJEEE-V10I9P107

Abstract:

Multilevel Inverters (MLIs) are cascade inverters that may take several or a single DC input and produce a single AC output of the desired Frequency (F) and voltage, making them ideal for medium power applications. MLIs are better than 2L inverters in many aspects; however, implementing MLIs is becoming more difficult due to the increasing amount of switches and their configurations. For high-gain DC-AC converters, Switched Capacitor (SC) driven MLIs often demonstrate the compromise between switch count and voltage rating. A Single-Source Switched Capacitor Seven-Level Boost Inverter (S3C7LBI) is presented in this research. Since the S3C7LBI can offer intrinsic capacitor voltage balancing, triple voltage gain, and seven output levels without requiring sensors or other auxiliary operations, it is appropriate for renewable energy applications. The proposed S3C7L boost inverter design requires only one DC power source, eleven electronic switches, and two capacitors. Utilizing the sinusoidal PWM control approach, the functioning of the S3C7LB inverter is examined. The usefulness of the S3C7LBI architecture is validated by the simulation results for dynamic modulation index values, and different load conditions are presented. Additionally, hardware findings confirm that the S3C7LBI architecture is feasible.

Keywords:

Boost voltage, Harmonic distortion, Multilevel Inverter, Switched Capacitor, DC-AC inverter.

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