Results 1 to 10 of about 6,208 (199)

Examination on the parameter stability region of the VSC control system in VSC-HVDC transmission systems

open access: yesThe Journal of Engineering, 2019
Nowadays, the voltage source converter (VSC)-based high-voltage direct current (HVDC) transmission technology is widely adopted for the integration of renewable power generations.
Long Xu   +5 more
doaj   +2 more sources

Spider monkey optimization (SMO) – lattice Levenberg–Marquardt recursive least squares based grid synchronization control scheme for a three-phase PV system [PDF]

open access: yesArchives of Control Sciences, 2021
This paper presents a new grid integration control scheme that employs spider monkey optimization technique for maximum power point tracking and Lattice Levenberg Marquardt Recursive estimation with a hysteresis current controller for controlling voltage
Dipak Kumar Dash   +2 more
doaj   +1 more source

Improved Fuzzy Logic MPPT Controller of Stand-alone WECS-based PMSG under Stochastic Wind Environment

open access: yesRevue des Énergies Renouvelables, 2023
This paper discusses the modeling and control of a Standalone WECS-based PMSG, the aim is to achieve an optimal operation of the studied WECS under a typically stochastic wind environment. The Maximum Power Point Tracking (MPPT) is guaranteed through the
Ridha Cheikh   +2 more
doaj   +1 more source

DC Admittance Model of VSCs for Stability Studies in VSC-HVDC Systems

open access: yesEnergies, 2023
High-voltage direct current (HVDC) systems linked to AC grids with converters are promising energy transmission systems. These systems present complex AC- and DC-side dynamic interactions. Impedance-based stability studies have recently been proposed to assess DC-side dynamics from DC-side characterization of voltage source converters (VSCs ...
Pedra Durán, Joaquim   +2 more
openaire   +4 more sources

Existence of Solutions to the Diffusive VSC Model [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2013
We prove existence of classical solutions to the so-called diffusive vesicle supply center (VSC) model describing the growth of fungal hyphae. It is supposed in this model that the local expansion of the cell wall is caused by a flux of vesicles into the wall and that the cell wall particles move orthogonally to the cell surface.
Hulshof, J., Nolet, R.W., Prokert, G.
openaire   +3 more sources

Voltage Source Converter based High Voltage Direct Current Transmission: A Comprehensive Review of Control Strategies, Developments and Trends [PDF]

open access: yesE3S Web of Conferences
The continuous increasing progress in high power and high voltage semiconductor devices leads to have a substantial impact on optimization and effective management of electric grids. These developments have great influence on High Voltage Direct Current (
Gangikunta Manohar   +3 more
doaj   +1 more source

MODERN APPROACHES INTEGRATED TREATMENT OF FETOPLACENTAL INSUFFICIENCY IN PREGNANT WOMEN WITH VAGINAL DISBIOSIS

open access: yesКубанский научный медицинский вестник, 2017
Aim. Evaluation of the efficiency of magnetic therapy application using the apparatus of RIKTA-02 as a part of a complex therapy of placental insufficiency in pregnant women with bacterial vaginosis.Materials and methods.
F. U. Magaeva   +2 more
doaj   +1 more source

Phenotypic and genomic relationships between vulva score categories and reproductive performance in first-parity sows

open access: yesJournal of Animal Science and Biotechnology, 2021
Background One of the biggest challenges in the swine industry is to increase female reproductive efficiency. Recently, vulva score categories (VSC), assessed prior to puberty, has been proposed as an indicator trait of efficient reproductive performance
Flor-Anita Corredor   +5 more
doaj   +1 more source

PERFORMANCE COMPARISON OF MULTICELL SERIES AND NPC MULTILEVEL CONVERTERS FOR A STATCOM

open access: yesElectrical engineering & Electromechanics, 2019
. In this paper, we present a comparative study of the performances of the multicells series and the Neutral-Point-Clamped (NPC) three-level converters used at synchronous static compensators (STATCOM) for the control of the voltage at a point of the ...
S. Belakehal, A. Djellad, R. Chenni
doaj   +1 more source

Sub-THz Waveguide Spectroscopy of Coating Materials for Particle Accelerators

open access: yesCondensed Matter, 2020
The electromagnetic characterisation of different materials for the inner wall coating of beam pipes is a long-standing problem in accelerator physics, regardless the purpose they are used for, since their presence may affect in an unpredictable way the ...
Andrea Passarelli   +5 more
doaj   +1 more source

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