Results 71 to 80 of about 53,281 (221)
Energies, 2018 High-frequency oscillations caused by voltage source converters (VSCs) are constantly emerging in power systems with the increasing penetration of renewable energies.
Yabing Yan, Xiaoming Yuan, Jiabing Hu
doaj +1 more source
A timely switch fault ride-through method for VSC-HVDC system
电力工程技术, 2022 In order to achieve the fault through of voltage source converter-based high voltage direct current (VSC-HVDC)system during alternating current (AC) system asymmetric faults and keep stability of the impedance at steadystate, a timely switch fault ...
WANG Ke +5 more
doaj +1 more source
Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]
, 2016 This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano +3 more
core +1 more source
Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems
Energy Science &Engineering, EarlyView.This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk +4 more
wiley +1 more source
Energy Science &Engineering, EarlyView.An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian +7 more
wiley +1 more source
A Modified Version of Taylor's Hypothesis for Solar Probe Plus Observations [PDF]
, 2015 The Solar Probe Plus (SPP) spacecraft will explore the near-Sun environment, reaching heliocentric distances less than $10 R_{\odot}$. Near Earth, spacecraft measurements of fluctuating velocities and magnetic fields taken in the time domain are ...
Chandran, Benjamin D. G. +4 more
core +2 more sources
Relationships between periodontitis, tooth loss, and metabolic syndrome indicators
Journal of Periodontology, EarlyView.Abstract Background This study investigates how poor oral health impacts metabolic alterations, specifically evaluating the effects of periodontitis and tooth loss, either individually or in combination, on the number of metabolic syndrome (MetS) indicators.
Verbênia Silva Conceição +14 more
wiley +1 more source
The Optimal Economic Solution with UPFC, for a Large Size Industrial Plant
Pakistan Journal of Engineering & Technology, 2019 The Flexible Alternating Current Transmission System (FACTS) devices have opened new doors for controlling the power flow over the transmission line and to enhance the usable capacity of an existing power system. Unified Power Flow Controller (UPFC) is a
MUHAMMAD KASHIF RASHEED +2 more
doaj
Overview of Research on Stability and Control of VSC-HVDC
发电技术, 2019 Voltage source converter based high voltage direct current (VSC-HVDC) transmission systems has the advantages of good active and reactive power control capability and more suitable for multi-terminal transmission system.
Mingzhe WU, Wuhui CHEN
doaj +1 more source
Movement Disorders, EarlyView.Abstract Background Parkinson's disease is mainly characterized by dopaminergic neurodegeneration in the substantia nigra pars compacta (SNc) and α‐synuclein accumulation. The locus coeruleus (LC) is also affected in Parkinson's disease and linked to some nonmotor symptoms, but the extent and timing of its degeneration remain unclear.
Megan Carrillo +6 more
wiley +1 more source