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Experimental Study on Transformerless Grid-Connected PV Inverter: Analyzing Transformerless Grid-Connected PV Inverters: Efficiency, Leakage Current, and Reactive Power Control - Softcover

Ramasamy, Suganthi; Perumal, Maruthupandi; Gatto, Gianluca

 
9786208436643: Experimental Study on Transformerless Grid-Connected PV Inverter: Analyzing Transformerless Grid-Connected PV Inverters: Efficiency, Leakage Current, and Reactive Power Control
Softcover
ISBN 10: 6208436648 ISBN 13: 9786208436643
Verlag: LAP LAMBERT Academic Publishing, 2025

Inhaltsangabe

This thesis investigates transformerless grid-connected photovoltaic (PV) inverters, focusing on efficiency, leakage current reduction, and reactive power control. Transformerless inverters offer higher efficiency, lower cost, and compact size but suffer from leakage currents that impact total harmonic distortion (THD) and electromagnetic interference. Various inverter topologies, including H7, H8, and NPC-based designs, are analyzed for their performance in terms of common-mode voltage (CMV), power losses, and compliance with IEEE-1547 standards. A novel modulation strategy is proposed to mitigate leakage current while enhancing reactive power capability and low voltage ride-through (LVRT) performance. The study introduces an improved CMV clamped topology that eliminates the need for extra filters, reducing cost and complexity. Simulation and experimental results validate the effectiveness of the proposed techniques, demonstrating enhanced inverter performance. This research contributes to the development of next-generation, efficient, and reliable transformerless PV inverters for grid applications.

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Über die Autorin bzw. den Autor

Dr. Suganthi Ramasamy, a Power Electronics Engineer, specializes in renewable energy systems with over eight years of R&D experience. She holds a Ph.D. from Anna University and is an RTD-A Research Assistant Professor at the University of Cagliari, Italy. With 20+ publications, expertise in power converters, and contributions to global projects.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2025
Sprache
Englisch
ISBN 10 
6208436648
ISBN 13 
9786208436643
Einband
Taschenbuch
Anzahl der Seiten
172
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
Alphascript Publishing
customerservice@vdm-vsg.de

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