Results 11 to 20 of about 2,139 (183)

SapF-mediated heme iron utilization enhances persistence and coordinates biofilm architecture of Haemophilus [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology, 2012
Nontypeable Haemophilus influenzae (NTHI) is a common commensal bacterium that resides in the human upper respiratory tract of healthy individuals. NTHI is also a known causative agent of multiple diseases including sinusitis, otitis media as well as ...
Andrew R. Vogel   +6 more
doaj   +3 more sources

Simulation Research of SAPF Based on Improved Hysteresis Control Strategy

open access: yesGong-kuang zidonghua, 2010
In view of the problems existed in triangular carrier control strategy and hysteresis control strategy used by SAPF, the paper proposed a design scheme of SAPF based on improved hysteresis control strategy.
LIU Yi, XU Shi-zhou
doaj   +1 more source

Optimal Compensation Method for Multi-node Voltage Harmonics Based on SAPF

open access: yesZhongguo dianli, 2021
With the decentralized access of non-linear loads in the local distributed network, the traditional shunt active power filter (SAPF) configuration method with the objective of local compensation of harmonics requires integration of a large number of ...
Xiaoqing YIN   +6 more
doaj   +2 more sources

Review of Fundamental Active Current Extraction Techniques for SAPF. [PDF]

open access: yesSensors (Basel), 2022
The field of advanced digital signal processing methods is one of the fastest developing scientific and technical disciplines, and is important in the field of Shunt Active Power Filter control methods. Shunt active power filters are highly desirable to minimize losses due to the increase in the number of nonlinear loads (deformed power).
Baros J   +6 more
europepmc   +5 more sources

SAPF Parameter Optimization with the Application of Taguchi SNR Method [PDF]

open access: yesElectronics, 2022
Non-linear devices draw non-sinusoidal currents from the source; hence, they cause harmonic distortions in power systems. The shunt active power filter (SAPF) is a well-known method for alleviating current harmonics, compensating the reactive power and improving the power factor; however, the effective design of an SAPF is quite challenging and a ...
Jitendra Kumar Sao   +4 more
openaire   +1 more source

Research on Oscillation Suppression Methods in Shunt Active Power Filter System

open access: yesEnergies, 2022
The shunt active power filter (SAPF) system oscillation is a massive threat to the security and stability of the power grid. This study classifies SAPF oscillation into two categories according to the difference in mechanisms. The SAPF oscillation in one
Rui Hou   +3 more
doaj   +1 more source

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2021
Nowadays, the majority of electronic equipment behaves as nonlinear loads, introducing power quality problems into the power grid, namely, current harmonics and low power factor. These problems contribute to reduce the efficiency of the
Catia Oliveira   +5 more
doaj   +1 more source

A fault tolerance method based on switch redundancy for shunt active power filter

open access: yesEnergy Reports, 2021
In order to improve the reliability of the shunt active power filter(SAPF) system, the fault-tolerant control strategy of the system is studied in this paper.
Dongdong Chen   +3 more
doaj   +1 more source

Ligand-biased ensemble receptor docking (LigBEnD): a hybrid ligand/receptor structure-based approach. [PDF]

open access: yes, 2017
Ligand docking to flexible protein molecules can be efficiently carried out through ensemble docking to multiple protein conformations, either from experimental X-ray structures or from in silico simulations.
Abagyan, Ruben   +2 more
core   +2 more sources

AN ADAPTIVE HARMONIC COMPENSATION STRATEGY FOR THREE-PHASE SHUNT ACTIVE POWER FILTER BASED ON DOUBLE SECOND-ORDER GENERALIZED INTEGRATOR WITH PREFILTER

open access: yesElectrical engineering & Electromechanics, 2020
. This study presents a straightforward adaptive prefiltering algorithm based on a double second-order generalized integrator with prefilter to solve one of the power quality issues, this algorithm is in charge of the determination of the reference ...
S. Kalkoul   +3 more
doaj   +1 more source

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