Results 41 to 50 of about 20,945,230 (247)
A Novel Hybrid GWO-LS Estimator for Harmonic Estimation Problem in Time Varying Noisy Environment
Energies, 2021 The power quality of the Electrical Power System (EPS) is greatly affected by electrical harmonics. Hence, accurate and proper estimation of electrical harmonics is essential to design appropriate filters for mitigation of harmonics and their associated ...
Muhammad Abdullah +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch +3 more
wiley +1 more source
Design of Six Pulse Bridge Multiplication Converter Model for Current Harmonic Elimination of Three Phase AC-DC Converter [PDF]
Mehran University Research Journal of Engineering and Technology, 2014 The recent development of semiconductor technology and wide spread use of power electronic devices in power system have open the era of the power system harmonics due to increasing penetration of non-linear loads.
Mansoor Ahmed Soomro +2 more
doaj
Power System Distortion Mitigation by Using Series Active Power Filter [PDF]
International Journal of Industry and Sustainable Development, 2020 The power quality improvement faces different significant problems due to the wide use of power electronics and voltage instability. To overcome these different power quality problems, an active power filter is used.
Muhammad Mahmoud +2 more
doaj +1 more source
Impacts of subsynchronous and supersynchronous frequency components on synchrophasor measurements
Journal of Modern Power Systems and Clean Energy, 2016 Phasor measurement units (PMU) are playing an increasingly important role in power system dynamic security monitoring and control. However, the wide-area deployments of the renewable energy sources and the high voltage direct current (HVDC) transmission ...
Hao Liu +7 more
doaj +1 more source
Global sensitivity and uncertainty analysis of transients in the Universal Line Model
, 2014 One of the main aspects of designing and operation prediction of any power system is to simulate its Electromagnetic Transient's (EMT) performance. Among the available power line models, Universal Line Model (ULM) is an efficient and accurate model for ...
Shahabi Ghahfarokhi, N. +3 more
core +1 more source
Future work on harmonics : some expert opinions : part II : supraharmonics, standards and measurements [PDF]
, 2014 A workshop on power system harmonics was organized in Stockholm in January 2014. On the agenda was among others a discussion on what are the main issues on harmonics at the moment and in the near future.
Desmet, Jan +29 more
core +1 more source
Advanced Engineering Materials, EarlyView.This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley +1 more source
, 2006 Current and voltage waveforms of a distribution or a transmission system are not pure sinusoids. There are distortions in these waveforms that consist of a combination of the fundamental frequency, harmonics and high frequency transients.
Zamanan, N. +2 more
core +1 more source