Results 21 to 30 of about 1,453,821 (301)

Impact of Multiple Grid-Connected Solar PV Inverters on Harmonics in the High-Frequency Range

open access: yesEnergies
In recent years, integration of solar photovoltaic (PV) systems into distribution networks has been increasing rapidly, as it has become the most promising renewable energy source (RES) in the transition of power generation from centralised to ...
Kasun Peiris   +3 more
doaj   +1 more source

Continuous harmonic analysis and power quality measurements in three-phase systems [PDF]

open access: yes, 2003
A virtual instrument, named Power Quality Meter, is presented for (a) measuring power consumption and harmonics in three-phase systems, under non-sinusoidal and imbalance conditions (b) detecting, classifying and organizes power disturbance events ...
Bravo-Rodríguez, Juan Carlos   +6 more
core   +1 more source

Characterisation of Harmonic Resonance Phenomenon of Multi-Parallel PV Inverter Systems: Modelling and Analysis

open access: yesEnergies
Solar PV inverters require output filters to reduce unwanted harmonics in their output, where LCL filters are a more economical choice than larger inductance-only filters. A drawback of these filters is that they can introduce power quality disturbances,
Kasun Peiris   +3 more
doaj   +1 more source

Claudin‐6 Protein Expression in Atypical Teratoid/Rhabdoid Tumors Is Strongly Enriched in the Molecular Subgroup AT/RT‐TYR

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Claudin‐6 has emerged as a promising immunotherapeutic target, yet protein‐level data in atypical teratoid/rhabdoid tumors (AT/RTs) have been inconsistent. We analyzed 36 well‐characterized AT/RT samples and found membranous claudin‐6 protein expression in 58% of cases, with striking enrichment in the molecular subgroup AT/RT‐TYR (100%) and ...
Victoria E. Fincke   +4 more
wiley   +1 more source

Magnetic field density analysis in switchgears

open access: yes, 2011
Publisher Copyright: © 2011, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved.For many years the evaluation of the electromagnetic field (EMF) generated by transformer substations ...
J. Izagirre   +11 more
core   +1 more source

Novel approach to monitoring and mitigating power quality disturbances in hybrid renewable energy system

open access: yes, 2022
Renewable energy sources are continually increasing their share in the energy system. The introduction of Hybrid Renewable Energy Sources (H.R.E.S.) in the electrical power system has gained momentum.
Hellany, Ali (R8993)   +3 more
core   +1 more source

Measurement of High-Frequency Voltage Harmonics above 2 kHz in High-Voltage Networks

open access: yesEnergies
Large-scale renewable energy plants, flexible AC (alternating current) and high voltage DC (direct current) transmission systems, and modern consumer devices utilize power electronics that tend to increase harmonic emissions.
Imanka Dewayalage   +3 more
doaj   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

Study on the pyrolysis characteristics of styrene-grafted polypropylene cable insulation material

open access: yesAIP Advances
Polypropylene (PP) has garnered significant attention as a cable insulation material due to its exceptional electrical performance and recyclability. Styrene-grafted polypropylene (PP-g) emerges as a promising alternative in this context.
Chao Peng   +7 more
doaj   +1 more source

Safe Operation Area of Energy-Storage-Free Dynamic Voltage Restorer

open access: yesZhongguo dianli, 2022
Energy-storage-free dynamic voltage restorer (DVR) is a common device used to solve voltage sag problems in engineering, but its actual operation is limited by the parameters of application scenarios.
Mingxing ZHU   +3 more
doaj   +1 more source

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