Results 71 to 80 of about 490 (210)

Optimal design of NPC and Active-NPC transformerless PV inverters

, 2012
Targeting at a cost-effective deployment of grid-connected PhotoVoltaic (PV) systems, this paper presents a new methodology for the optimal design of transformerless PV inverters, which are based on the Neutral Point Clamped (NPC) and the Active-Neutral ...
E. Koutroulis, Saridakis, Stefanos, F. Blaabjerg, Koutroulis, Eftichios, Blaabjerg, Frede; id_orcid, S. Saridakis   +5 more
core   +1 more source

Super‐Twisting Based Sliding Mode Control of a Single‐Phase Grid‐Connected Transformerless Inverter for PV Systems With Leakage Current Reduction

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
This study examines a transformerless grid‐connected H‐bridge neutral point clamped inverter, addressing the critical challenge of leakage current reduction. A super‐twisting algorithm‐based sliding mode control, combined with a modified modulation scheme and optimized system design, ensures effective grid current regulation and enhanced safety. MATLAB/
Muhammet Cengiz, Turgay Duman
wiley   +1 more source

Particle Swarm Optimization Controlled High‐Gain Three‐Port DC–DC Converter With Reduced Switches and Passive Elements for Electrical Vehicle Charging Station

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This paper presents a three‐port DC–DC converter along with a high‐gain converter that incorporates a photovoltaic (PV), a hybrid energy storage system (HESS), and a DC link capacitor to formulate a stable standalone supply unit for electric vehicle (EV) charging application. The HESS consists of a battery and a supercapacitor which efficiently manages
Balasubramanian Ganesan, Augusti Lindiya Susaikani, Subashini Nallusamy, Uma Dharmalingam, Natarajan Prabaharan, Arun Thirumurugan   +5 more
wiley   +1 more source

Grid-connected transformerless single-phase photovoltaic inverters: an evaluation on DC current injection and PV array voltage fluctuation

, 2009
A number of political, environmental and technical factors have resulted in the increase of implementation of renewable technology including grid connected photovoltaic inverters.
Morris, Claude
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Sistemas fotovoltaicos conectados a redes de distribuição urbanas: sua influência na qualidade da energia elétrica e análise dos parâmetros que possam afetar a conectividade [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2010Este trabalho aborda a interação entre os inversores de sistemas fotovoltaicos conectados à rede elétrica ...
Urbanetz Junior, Jair
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DCM-232 converter: a PV transformerless three-phase inverter

, 2011
Nowadays transformerless PV converters are widely used in the energy conversion stage of a PV plant, because their good characteristics regarding efficiency, size, cost and weight.
Muñoz Aguilar, Raúl Santiago, Vázquez Guzmán, Gerardo, Etxeberria Otadui, Ion, Rodríguez Cortés, Pedro, Candela García, José Ignacio, Aldabas Rubira, Emiliano   +5 more
core   +1 more source

New Non Isolated DC–DC Converter for Photovoltaic Applications: Ultra High Voltage Gain With Current and Voltage Stress Reduction

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This paper proposes an ultrahigh voltage gain nonisolated DC–DC converter based on a modified double boost mode (MDBM), combined with a modified switched inductor‐switched capacitor (MSLSC) technique. The modified voltage multiplier technique (MVMT) is integrated with the MSLSC and MDBM using a second main metal‐oxide‐semiconductor field‐effect ...
Ammar Falah ALgamluoli, Hayder K. Jahanger, Xiaohua Wu, Mohammed Abaker, Hatim Dafaalla, Suresh Kannan Balasingam   +5 more
wiley   +1 more source

Filter-Clamped Two-Level Three-Phase Transformerless Grid-Connected Photovoltaic Inverter for Leakage Current Reduction

, 2020
Transformerless Photovoltaic (PV) grid-connected systems benefit from improved cost, size, weight, and efficiency compared to the isolated alternatives.
Masoud Farhadi (8662755), ramin rahimi (8662761)   +1 more
core   +1 more source

Design and implementation of a solar power optimizer for module level power electronics application

IET Power Electronics, Volume 17, Issue 15, Page 2531-2548, 25 November 2024.
This paper introduces a non‐isolated common ground non‐inverting output voltage buck‐boost converter as a solar power optimizer, which offers a extended conversion ratio and maintains continuous input and output currents. This converter is well‐suited for renewable energy applications and reduces the size of input and output filters.
Babak Allahverdinejad, Ali Ajami, Mohamad Reza Banaei   +2 more
wiley   +1 more source

Transformerless PV inverters - recent test results and a discussion of DC current injection and safety issues

, 2010
With the variety of PV inverter types and the number of transformerless PV inverters on the Australian market increasing, we revisit some of the issues associated with these topologies.
Dymond, Mike, Calais, Martina, Morris, Claude, Ruscoe, Andrew, Pezeshki, Houman   +4 more
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