Results 11 to 20 of about 6,184 (207)

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

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

Bad Data Detection and Identification of Hybrid AC/DC Power Systems with Voltage Source Converters Using Deep Belief Network and K-Means Clustering

open access: yesElektronika ir Elektrotechnika, 2019
The widespread use of Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) technology has significantly increased the complexity of grid configuration and operation, which demands higher quality of AC/DC state estimation ...
Tong Zhang   +4 more
doaj   +1 more source

Sosyodemografik yapı ve sigara kullanımının ağız kokusu üzerine etkisinin organoleptik yöntem ve halimeter® ile değerlendirilmesi

open access: yesCumhuriyet Dental Journal, 2014
Amaç: Bu çalışmanın amacı, Yakın Doğu Üniversitesi, Diş Hekimliği Fakültesine başvuran bireylerde halitozis görülme sıklığının araştırılması ve halitozis ile yaş, cinsiyet, eğitim seviyesi ve sigara kullanımı arasındaki ilişkinin incelenmesidir ...
Başak Kuşakcı Şeker, Hayriye Tumer
doaj   +1 more source

A Comprehensive Power Flow Approach for Multi-terminal VSC-HVDC System Considering Cross-regional Primary Frequency Responses

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
For the planning, operation and control of multiterminal voltage source converter (VSC) based high-voltage direct current (HVDC) (VSC-MTDC) systems, an accurate power flow formulation is a key starting point.
Yida Ye, Ying Qiao, Le Xie, Zongxiang Lu
doaj   +1 more source

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