Results 41 to 50 of about 6,600 (212)

Rapid Identification of Total Demand Distortion Using a Neural Network Model and Mitigation via an Integrated Filter Design

open access: yesApplications of Modelling and Simulation, 2023
This paper proposed a filter for the mitigation of power harmonics based on an integration of filters namely double-tuned plus C-type filter (DTPC). The proposed DTPC filter is mainly aimed to filter the total demand distortion (TDD), as well as the ...
E. Kumaran   +3 more
doaj  

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

open access: yesEcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor   +3 more
wiley   +1 more source

A Simplified Two‐Vector Approach for Common‐Mode Voltage Reduction in Model Predictive Control Drives of Permanent Magnet Synchronous Motor

open access: yesEnergy Science &Engineering, EarlyView.
In this study, a modified model predictive control scheme is proposed, in which a dedicated weighting factor is incorporated into the cost function to explicitly account for common‐mode voltage (CMV) effects during the control process. This modification leads to a significant reduction—up to 40%—in the magnitude of the generated CMV.
Javad Amini, Reza Roshanafekr
wiley   +1 more source

Construction and Application of Online Vibration Frequency Response Analysis Method for Converter Transformer Winding

open access: yesHigh Voltage, EarlyView.
ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley   +1 more source

Evidence of a local BCC‐type coordination of cobalt in FCC taenite of iron meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Ni, Co, and Fe K‐edge X‐ray absorption fine structure (XAFS) measurements were performed, revealing an unexpected local structure around Co in well‐known iron and stony‐iron meteorites. Cobalt is enriched in kamacite but remains in taenite at concentrations of at least 0.3 atom%.
Kanako Yoshihara   +5 more
wiley   +1 more source

TOTAL HARMONIC DISTORTION ANALYSIS OF MATRIX CONVERTER

open access: yes, 2016
This paper deals with the validation and design analysis of Matrix converter for variable frequency using mathematical equations. The analysis was done using Venturini modulation algorithm.
K. Dhivya, K. Kandan, K. Senthilkumar
core   +1 more source

Analysis on the Effect of Capacitor Banks Operation towards Total Harmonic Distortions (THD) in Distribution Network Test System

open access: yesJournal of Energy and Safety Technology (JEST), 2018
This paper purposely to examine and analyse the impact of the distribution capacitors banks operation to the transition of total harmonic distortion (THD) level in distribution network system. The main advantage of this work is the simplicity algorithm of the method and the system being analysed using free access open software which is known as ...
Dalila M.S.   +3 more
openaire   +2 more sources

Power quality enhancement using active power filter five-level cascade H-bridge under unbalanced and distorted grid

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. To improve the power quality of a supply system, the total harmonic distortion (THD) is the most important parameter in the quantification of harmonics caused by nonlinear loads. In practice, it must be less than 5 %.
M. Guergah   +4 more
doaj   +1 more source

Reducing Harmonic Voltage At Industrial Area Distribution Network Using Network Configuration Management [TK1007. S526 2008 f rb]. [PDF]

open access: yes, 2008
Syarikat pembekal elektrik diperlukan untuk mengekalkan tahap voltan harmonik di dalam sistem di bawah batas piawaian. Electric utility company is required to maintain harmonic voltage level in the system below the standard’s ...
Latif, Mohd Shahed
core  

Total Harmonic Distortion (THD) analysis utilizing the FFT capabilities of modern digital storage oscilloscopes

open access: yes, 2022
This paper shows how to analyze Total Harmonic Distortion (THD) using the fast Fourier transformation (FFT) capability of low-cost digital sampling oscilloscopes. It was found that THD measurements using this method are accurate within less than a few percent of absolute error.
openaire   +2 more sources

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