Results 11 to 20 of about 125,363 (305)
Computation of Nonlinear Load Harmonic Currents in the Presence of External Distortions
Computation, 2022 This paper deals with the issues of computation of the nonlinear load harmonic currents in the presence of external distortions based on the real measurements with help of passive harmonic.
Aleksandr Skamyin +3 more
doaj +1 more source
Energies, 2021 The paper presents a power-quality analysis in the utility low-voltage network focusing on harmonic currents’ pollution. Usually, to forecast the modern electrical and electronic devices’ contribution to increasing the current total harmonic distortion ...
Łukasz Michalec +5 more
doaj +1 more source
Harmonic assessment‐based adjusted current total harmonic distortion
The Journal of Engineering, 2016 Power systems suffer from harmonic distortion and extra ohmic losses associated with them. Moreover, all harmonic frequencies are mostly assumed to have the same effect on the system losses. However, the frequency‐dependency of the resistances should be taken into account, so that the apparent power and the power factor have to ...
Shady H.E. Abdel Aleem +2 more
openaire +4 more sources
Gauge invariance and the interpretation of inter- and intraband processes in high-order harmonic generation from bulk solids [PDF]
, 2017 A theoretical model for high-order harmonic generation (HHG) in bulk solids is considered. Our approach treats laser-induced inter- and intraband currents on an equal footing.
Foldi, Peter
core +3 more sources
Current Harmonic Aggregation Cases for Contemporary Loads
Energies, 2022 Power electronic circuits in modern power supplies have improved the conversion efficiency on the one hand but have also increased harmonic emissions.
Kamran Daniel +6 more
doaj +1 more source
Energies, 2018 This paper presents an improvement in harmonic compensation performance of a previously proposed smart charger (SC) with a constant dc-capacitor voltage-control (CDCVC) strategy for electric vehicles (EVs) in single-phase three-wire distribution feeders (
Kei Nishikawa +5 more
doaj +1 more source
Improving the Efficiency of Electric Rolling Stock Operation Through the Use of Adaptive Filtering Methods for High Harmonic Current Components in Traction Drive Systems [PDF]
Problems of the Regional Energetics, 2023 The aim of this work is to investigate the efficiency of various adaptive filtering methods for higher harmonic components of stator currents in a vector-controlled traction drive system to improve the operation efficiency of electric rolling stock.
Goolak S.
doaj +1 more source
Nonpilot directional protection of a microgrid
The Journal of Engineering, 2023 Protection of an islanded inverter‐based microgrid is challenging because of variable and small fault current contribution of inverter‐based resources (IBR) and the absence of sequence currents.
Ardavan Mohammadhassani +1 more
doaj +1 more source
Energies, 2021 The matrix converter-based IPMSM drive has 360 Hz virtual DC-bus voltage variations which produce severe stator harmonic currents. To solve this problem, a speed-loop classical periodic controller and two current-loop periodic controllers, including a ...
Tian-Hua Liu +2 more
doaj +1 more source
Entropy, 2016 Based on the fast kernel entropy optimization independent component analysis and the minimum conditional entropy, this paper proposes a harmonic source localization method which aims at accurately estimating harmonic currents and identifying harmonic ...
Tianlei Zang +4 more
doaj +1 more source