Solar photovoltaic based cascaded multilevel inverter with 33-levels using phase opposition disposition control method

Chandolu Sai Deepak, Madhu Babu Thiruveedula, Bandari Rahul Teja, Supe Gowtham, Sthambhampally Vivek, Panuganti Yeshwanth Kumar

Abstract


A cascaded multilevel inverter (MLI) tailored for photovoltaic (PV) networks, aiming to improve power quality and support transformer-less operation. The symmetric MLI design is selected for its effectiveness in minimizing harmonics and enhancing fault tolerance in high-power scenarios, where the use of power semiconductor converters can introduce complications. The proposed inverter configuration achieves thirty-three voltage levels, optimizing power quality while using insulated gate bipolar transistor (IGBT) semiconductor switches. The phase opposition disposition (POD) control method is applied to trigger necessary switching signals for the inverter's components. To ensure high output voltage for the MLI, a boost converter is employed, and the overall system is tested with an R load. The effectiveness of the design is validated through MATLAB/Simulink simulations, which demonstrate a notable reduction in total harmonic distortion (THD). 


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DOI: http://doi.org/10.11591/ijaas.v14.i3.pp928-935

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Copyright (c) 2025 Chandolu Sai Deepak, Madhu Babu Thiruveedula, Bandari Rahul Teja, Supe Gowtham, Sthambhampally Vivek, Panuganti Yeshwanth Kumar

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International Journal of Advances in Applied Sciences (IJAAS)
p-ISSN 2252-8814, e-ISSN 2722-2594
This journal is published by Intelektual Pustaka Media Utama (IPMU) in collaboration with the Institute of Advanced Engineering and Science (IAES).