Results 21 to 30 of about 8,844,154 (290)

Transformerless Common-Mode Current-Source Inverter Grid-Connected for PV Applications

IEEE Access, 2018
The use of a transformer in grid-connected photovoltaic (PV) generation systems provides isolation between the grid and the PV array, this increases the cost, weight, and the size of the system.
Hector Lopez, Juvenal Rodriguez Resendiz, Xiaoqiang Guo, Nimrod Vazquez, Roberto V. Carrillo-Serrano   +4 more
doaj   +1 more source

A Novel DC-AC Inverter Topology to Eliminate Leakage Current

International Journal of Power Electronics and Drive Systems (IJPEDS), 2018
Experiments confirmed that Transformerless Inverters (TIs) deliver more reliability and higher energy efficiency. Nonetheless, one of the shortcomings of TIs is the leakage current that occurs between the photovoltaic (PV) string terminals and the ground. Such a drawback is justified by the non-galvanic isolation caused by the transformer being omitted.
Tarek Selmi, Maher Rezgui
openaire   +2 more sources

Analysis of a Photovoltaic System Based on a Highly Efficient Single-Phase Transformerless Inverter

Energies, 2022
The essential requirement for a cleaner environment, along with rising consumption, puts a strain on the distribution system and power plants, reducing electricity availability, quality, and security.
Belqasem Aljafari, Ashok Kumar Loganathan, Indragandhi Vairavasundaram, Selvamathi Ramachadran, Amutha Prabha Nagarajan   +4 more
doaj   +1 more source

EXPERIMENTAL ASSESSMENT OF LEAKAGE CURRENT MAGNITUDE IN AUTOMATIC FOAM FIRE SUPPRESSION SYSTEMS [PDF]

Актуальные вопросы пожарной безопасности
The article presents the results of an experimental study of leakage currents that occur during the operation of automatic foam extinguishing systems (AUPT).
Alexandr M. Solonenko, Mikhail V. Shishkov, Andrey Yu. Mazurenko, Pavel G. Aksyutin   +3 more
doaj   +1 more source

A Transformerless Single-Phase Current Source Inverter Topology and Control for Photovoltaic Applications

Energies, 2018
Low power grid-tied photovoltaic (PV) generation systems increasingly use transformerless inverters. The elimination of the transformer allows smaller, lighter and cheaper systems, and improves the total efficiency. However, a leakage current may appear,
Jorge Cardoso, Nimrod Vazquez, Claudia Hernandez, Joaquin Vaquero   +3 more
doaj   +1 more source

Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]

, 2012
Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben, Wilson, Peter R., Wilson, P. R., P. R. Wilson, R. Wilcock, Wilcock, R.   +5 more
core   +1 more source

Blood-Brain barrier dysfunction: reduced flow of Extracellular Fluid - no leakage

Journal of Affective Disorders Reports, 2023
The Blood-CSF barrier dysfunction for proteins is clearly shown to be a consequence of reduced CSF flow rate without any morphological barrier leak. There is no contradiction in applying the molecular diffusion/ CSF flow model to the function of the ...
Hansotto Reiber
doaj   +1 more source

Leakage Current Elimination for Safer Direct Torque-Controlled Induction Motor Drives with Transformerless Multilevel Photovoltaic Inverters

Electricity
The use of photovoltaic (PV) water pumping technology offers a viable and sustainable alternative to conventional diesel-driven pumping systems. In PV-based pumping installations, the elimination of bulky transformers significantly reduces the overall ...
Zouhaira Ben Mahmoud, Adel Khedher
doaj   +1 more source

Evaluation of the course of the early postoperative period after surgery endovascular abdominal aortic aneurysm elimination by biochemical tests

Journal of Education, Health and Sport, 2018
Summary Admission: Abdominal aortic aneurysm occurs in 4-9% of men and 12% of women over 65 years of age, and its rupture is the cause of 10 deaths in developed countries.
Martyna Gorzelak, Monika Pierzak, Aneta Chrut   +2 more
doaj   +3 more sources

Self‐compared bit‐line pairs for eliminating effects of leakage current

Electronics Letters, 2017
This Letter proposes a new scheme to eliminate the bit‐line leakage current of static random access memory. The proposed scheme utilises a four‐input sense amplifier to amplify the voltages of self‐compared bit‐line pairs. The bit‐lines of the proposed structure have no series capacitances and are directly connected to the sense amplifier input.
Jingbo Zhang, Jinkai Wang, Chunyu Peng, Xuan Li, Zhiting Lin, Xiulong Wu   +5 more
openaire   +1 more source