Results 31 to 40 of about 1,452,967 (344)

An Adaptive Model Predictive Voltage Control for LC-Filtered Voltage Source Inverters

open access: yesApplied Sciences, 2021
The three-phase inductor and capacitor filter (LC)-filtered voltage source inverter (VSI) is subjected to uncertain and time-variant parameters and disturbances, e.g., due to aging, thermal effects, and load changes.
Hosein Gholami-Khesht   +2 more
doaj   +1 more source

Control of carbon nanotube morphology by change of applied bias field during growth [PDF]

open access: yes, 2004
Carbon nanotube morphology has been engineered via simple control of applied voltage during dc plasma chemical vapor deposition growth. Below a critical applied voltage, a nanotube configuration of vertically aligned tubes with a constant diameter is ...
AuBuchon, J. F.   +8 more
core   +1 more source

Pseudo-gradient Based Local Voltage Control in Distribution Networks

open access: yes, 2015
Voltage regulation is critical for power grids. However, it has become a much more challenging problem as distributed energy resources (DERs) such as photovoltaic and wind generators are increasingly deployed, causing rapid voltage fluctuations beyond ...
Chen, Lijun   +2 more
core   +1 more source

A multifunctional dynamic voltage restorer for power quality improvement [PDF]

open access: yes, 2018
Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien   +2 more
core   +1 more source

Effects of Nanoparticle Materials on Prebreakdown and Breakdown Properties of Transformer Oil

open access: yesApplied Sciences, 2018
In order to reveal the effects of nanoparticle materials on prebreakdown and breakdown properties of transformer oil, three types of nanoparticle materials, including conductive Fe3O4, semiconductive TiO2 and insulating Al2O3 nanoparticles, were prepared
Yuzhen Lv   +8 more
doaj   +1 more source

Optimal Sizing of Voltage Control Devices for Distribution Circuit with Intermittent Load [PDF]

open access: yes, 2014
We consider joint control of a switchable capacitor and a D-STATCOM for voltage regulation in a distribution circuit with intermittent load. The control problem is formulated as a two-timescale optimal power flow problem with chance constraints, which ...
Backhaus, Scott   +2 more
core   +2 more sources

Secondary voltage regulation based on average voltage control

open access: yesTecnoLógicas, 2018
This paper compares a conventional Secondary Voltage Regulation (SVR) scheme based on pilot nodes with a proposed SVR that takes into account average voltages of control zones.
Edwin H. Lopera-Mazo, Jairo Espinosa
doaj   +1 more source

Role of Voltage Control Devices in Low Voltage State Estimation Process

open access: yesInternational Transactions on Electrical Energy Systems, 2023
Megatrends, such as the proliferation of distributed generation, electrification, and the appearance of aggregator companies, put the low voltage power grids under intense pressure.
István Táczi   +5 more
doaj   +1 more source

Voltage Controlled Amplifier with Linearized Response to the Controlling Voltage

open access: yes, 2016
In this paper a design of a voltage controlled amplifier is described together with its practical realization and measured parameters. The amplifier is supposed to be employed in audio signal processing systems, for example volume expanders, etc. The design was created with the aid of several software supports as Maple for mathematical description of ...
Pospíšilík, Martin   +2 more
openaire   +2 more sources

Pazopanib Combined With Vincristine and Irinotecan in Relapsed Wilms Tumor: Encouraging Outcomes in a Heavily Pretreated Pediatric Cohort

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While Wilms tumor (WT) typically has a favorable prognosis, relapsed cases—especially those with high‐risk histology—remain therapeutically challenging after intensive frontline therapy. The combination of vincristine and irinotecan has demonstrated activity in pediatric solid tumors, and pazopanib, a multi‐targeted tyrosine kinase ...
Maria Debora De Pasquale   +6 more
wiley   +1 more source

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