Results 51 to 60 of about 2,945 (218)
Small-Signal Model of the NPC + GCC Multilevel Transformerless Inverter in Single-Phase Photovoltaic Power Systems [PDF]
, 2023 [EN] Photovoltaic transformerless inverters are very efficient and economical options for solar-power generation. The absence of the isolation transformer improves the converters' efficiency, but high-frequency voltage to ground can appear in the ...
Emilio Figueres +11 more
core +1 more source
Safety considerations for a transformerless inverter in residential PV-systems
, 2022 S.820-823In photovoltaic AC-systems for residential applications influences the inverter's part load efficiency the average system efficiency to a high degree.
Bopp, Georg, Laukamp, Hermann
core +1 more source
Eletrônica de Potência, 2016 Leakage current is one of the most relevant problems in grid-connected transformerless photovoltaic (PV) inverters due to parasitic capacitance of the PV modules.
Julian C. Giacomini +3 more
doaj +1 more source
IET Power Electronics, Volume 19, Issue 1, January/December 2026.The developed solution maintains stability at 600 V per SM, supporting a 2.4 kV MVDC link using cost‐effective 750 V SiC MOSFET devices based on proven derating practices. Key operational metrics include consistently high‐power quality, minimal harmonic distortion in both current and voltage and stable unity power‐factor operation across varying loads.
Mohammad Shadnam Zarbil +2 more
wiley +1 more source
IET Power Electronics, 2023 In order to improve the performance of the transformerless modular multilevel converters (MMC) under AC and DC grid fault conditions, this paper proposes an improved four‐layer capacitor voltage control strategy combined with arm current control.
Dan Liu +5 more
doaj +1 more source
IET Power Electronics, Volume 19, Issue 1, January/December 2026.A novel ultra‐high‐gain DC–DC converter for fuel‐cell electric vehicles is presented, providing nearly 18× voltage gain with high efficiency and low device voltage stress. Robust regulation is achieved using a super‐twisting sliding mode controller, and experimental results from a 250 W prototype confirm the effectiveness of the proposed design ...
Madhav Kumar +4 more
wiley +1 more source
Low Voltage Ride-Through of Single-Phase Transformerless Photovoltaic Inverters [PDF]
, 2013 Transformerless photovoltaic (PV) inverters are going to be more widely adopted in order to achieve high efficiency, as the penetration level of PV systems is continuously booming. However, problems may arise in highly PV-integrated distribution systems.
Huai Wang +5 more
core +1 more source
A Novel High‐Gain Solar Power Converter for Next‐Generation Renewable Energy Applications
International Journal of Energy Research, Volume 2026, Issue 1, 2026.This study presents a novel high‐gain solar power converter that integrates inductor coupling technology, designed for next‐generation renewable energy systems. The converter efficiently handles low input voltages (20–40 V) from solar panels. It operates at low duty cycles and boosts the output to 380 V direct current (DC), achieving a conversion ...
Hwa-Dong Liu +2 more
wiley +1 more source
Transformerless dc Converter for Distributed Solar Power Generation System
JAREE (Journal on Advanced Research in Electrical Engineering), 2017 There are two types of distributed solar power generation system stand-alone system and grid-connected system. In grid-connected system usually are equiped with additional transformer to transfer the energy from solar power to the grid.
Heri Suryoatmojo
doaj
A Zero-Voltage-Transition H5-Type Transformerless Photovoltaic Grid-Connected Inverter
IEEE AccessEfficiency and leakage current are two major issues for transformerless grid-connected inverters (TLI). Soft-switching technology can reduce switching losses, and is a good choice for high-frequency TLIs. Herein, a zero-voltage-transition H5 type (ZVT-H5)
Jicheng Fang +3 more
doaj +1 more source