International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

A New Step-Up Switched-Capacitor Voltage Balancing Converter for NPC Multilevel Inverter

Abstract

A new voltage balancing converter suitable for Neutral-Point-Clamped (NPC) Multilevel Inverter (MLI). The switched capacitor used in the proposed converter is able to balance the DC link capacitor voltage effectively by using proper switching states. The proposed balancing converter can be extended to any higher levels and it can boost the DC input voltage to a higher voltage levels without using any magnetic components. This feature allows the converter to operate with the boosting capability of the input voltage to the desired output voltage while ensuring the self-balancing. In this system the proposed converter is used for a grid system with NPC multilevel inverter, which is controlled using vector control scheme. The proposed grid connected system with associated controllers and maximum power point tracking (MPPT) is implemented in Matlab / Sim Power System and experimentally validated using SPACE system and designed converters. The simulation and experimental results show that the proposed topology can effectively balance the DC link voltage extract maximum power from PV module and inject power to the grid under varying solar irradiances with very good steady state and dynamic performances.

Country : India

1 Harshadeep N. Patil2 Prof. S.G. Kanade3 Prof. A.P. Kinge

  1. Student, M.E., Power System, TSSM's Bhivarabai Sawant College of Engineering and Research, Pune, Maharashtra, India
  2. Professor, M.E., Power System, TSSM's Bhivarabai Sawant College of Engineering and Research, Pune, Maharashtra, India
  3. Professor, M.E., Power System, TSSM's Bhivarabai Sawant College of Engineering and Research, Pune, Maharashtra, India

IRJIET, Volume 6, Issue 4, April 2022 pp. 144-146

doi.org/10.47001/IRJIET/2022.604034

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