Results 51 to 60 of about 296 (163)
Single-Phase Virtual-Ground Transformerless Buck–Boost Inverters
IEEE Transactions on Power Electronics, 2023 This article presents a new family of transformerless buck–boost voltage-source inverter topologies for photovoltaic systems. Due to variations in irradiance, temperature, and shading effects, the terminal voltages of photovoltaic panels can vary, making the use of buck–boost inverters crucial. The proposed topologies have a virtual-ground feature that
Fazal Akbar +5 more
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A hybrid high‐efficiency nine‐level inverter with high DC voltage utilization ratio
IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.Abstract This paper proposes a new hybrid nine‐level inverter topology with high efficiency and high dc voltage utilization ratio, which provides a potential for renewable energy power conversion. The proposed inverter can synthesize up to nine voltage levels with only ten switching devices and a flying capacitor (FC).
Qicai Ren, Alian Chen, Xi Liu, Tong Liu
wiley +1 more source
IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.This research work explains a sliding mode controller‐based multilevel inverter for grid integrated photovoltaic (PV) power structure. A gravitational search algorithm (GSA) based on maximum power point tracking (MPPT) has also been discussed for optimal PV power achievement.
Neeraj Priyadarshi +4 more
wiley +1 more source
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
IEEE Access, 2020 Multi-level transformerless inverters are widely used in grid-tied PV systems since they characterized by higher efficiency and lower cost. In this context, new topologies, modulation, and control schemes were presented to solve problems of a common-mode
Ahmed Sabry +4 more
doaj +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 Novel Transformerless Current Source Inverter for Leakage Current Reduction [PDF]
IEEE Access, 2019 High-frequency common mode voltage elimination is one of the most important issues for transformerless PV grid-connected inverters. Many interesting single-phase inverter topologies have been reported to reduce the common mode voltage. However, most of them are voltage-source inverters, which suffer from a limited lifetime and reliability.
Xiaoqiang Guo 0002 +4 more
openaire +3 more sources
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.Fault current limiters (FCLs) are essential components in modern power systems for critical protection against the damaging effects of fault currents. With extensive short circuits, routine electrical faults, and an increasing risk of failure due to unprecedented events, the development of different types of FCL has gained attention.
Tamalika Chowdhury +2 more
wiley +1 more source
A Review on the State of the Art of the Transformerless Converters for PV Systems
EAI Endorsed Transactions on Energy WebTransformerless converters for PV systems have been a field of interest for researchers for decades. The transformers make the system bulky, costly, and inefficient.
Mohd Imran Siddiqui +2 more
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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 +2 more
wiley +1 more source
Eletrônica de PotênciaLeakage current is an issue that often causes problems in transformerless grid-connected PV inverters, such as electromagnetic interference, which is conducted or radiated and derates the quality of power injected into the grid.
Caíque C. A. de Carvalho +3 more
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