Results 41 to 50 of about 2,400,130 (293)

Optimal negative sequence current suppression strategy without phase‐locked loop based on the control of clustered new energy power stations

open access: yesIET Generation, Transmission & Distribution, 2023
In the context of extremely uneven sources and loads in China, several large‐scale power transmission systems have been established. Affected by the small equivalent impedance of the system, the increase of negative sequence currents during open‐phase ...
Zhenxing Li   +5 more
doaj   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Current decoupling control strategy for unbalanced input 3-1 matrix converter

open access: yes工程科学学报, 2017
The reasons for low-order harmonics in the input current of a 3-1 matrix converter (3-1MC) were analyzed, and the relationship of modulation function between the output side and power compensation side was derived.
XU Yu-xiang   +3 more
doaj   +1 more source

Research on the Control Method of the PV Grid-Connected Inverter under an Asymmetrical Power Grid Fault

open access: yesEnergies, 2023
The negative-sequence current component and harmonic components generated when an asymmetrical fault occurs in the power grid seriously affect the normal operation of the photovoltaic (PV) grid-connected inverter.
Shiji Tian   +3 more
doaj   +1 more source

Post-merger Signatures of Red-sequence Galaxies in Rich Abell Clusters at $z\lesssim 0.1$

open access: yes, 2012
We have investigated the post-merger signatures of red-sequence galaxies in rich Abell clusters at $z \lesssim$ 0.1: A119, A2670, A3330 and A389. Deep images in u', g', r' and medium-resolution galaxy spectra were taken using MOSAIC 2 CCD and Hydra MOS ...
Bell   +22 more
core   +1 more source

Double-Frame Current Control with a Multivariable PI Controller and Power Compensation forWeak Unbalanced Networks [PDF]

open access: yes, 2016
The handling of weak networks with asymmetric loads and disturbances implies the accurate handling of the second-harmonic component that appears in an unbalanced network.
Rufery, Alfred, Siemaszko, Daniel
core   +3 more sources

Impact and Detection of Coil Asymmetries in a Permanent Magnet Synchronous Generator with Parallel Connected Stator Coils

open access: yesMachines
Permanent magnet synchronous generators (PMSGs) are suitable for offshore applications due to their high efficiency and power density. Inter-turn short circuits (ITSCs) stand as one of the most critical faults in these machines due to their rapid ...
Nikolaos Gkiolekas   +4 more
doaj   +1 more source

ERP analysis of cognitive sequencing : a left-anterior negativity related to structural transformation processing [PDF]

open access: yes, 2000
A major objective of cognitive neuroscience is to identify those neurocomputational processes that may be shared by multiple cognitive functions vs those that are highly specifc.
Dominey, Peter-Ford, Hoen, Michel
core  

A study on the negative sequence current injection during LVRT of IBRs

open access: yesRE&PQJ
Low Voltage Ride Through (LVRT) behaviour of Inverter Based Resources (IBR) during asymmetrical grid faults is dictated by the requirements of Grid Code (GC) at the Point of Common Coupling (PCC) of the renewable energy plants. Earlier GCs demanded only positive sequence current injection, which gave freedom to inverter manufacturers to implement ...
A. Blázquez   +5 more
openaire   +1 more source

Evaluating the Utility of Paired Tumor and Germline Targeted DNA Sequencing for Pediatric Oncology Patients: A Single Institution Report

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski   +9 more
wiley   +1 more source

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