Results 21 to 30 of about 16,786 (165)
International Journal of Photoenergy, 2021 The electrical energy demand is steadily growing, and hence, the integration of photovoltaic system to the distribution networks is also dramatically increasing though it has a significant effect on the network’s power quality.
Estifanos Abeje Sharew +2 more
doaj +1 more source
Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies
Space Weather, 2020 High time resolution (1–5 s) magnetometer, geomagnetically induced current (GIC), and mains harmonic distortion data from the Halfway Bush substation in Dunedin, New Zealand, are analyzed.
Mark A. Clilverd +6 more
doaj +1 more source
IET Renewable Power Generation, 2021 Grid background and dead‐time harmonic perturbations pose challenges in maintaining power quality and stability in the grid integration of renewable energy conversion systems.
Daniel Memije +4 more
doaj +1 more source
IEEE Open Journal of Industry Applications, 2023 This article presents a three-phase four-wire inverter to generate voltage sources under wide filter inductance variation. The voltage sources with distortion and unbalance are to emulate grid voltages.
Tsai-Fu Wu +3 more
doaj +1 more source
Hidden Harmonic Asymmetry in a Balanced Three-Phase Building: Evidence from Field Measurements
Applied SciencesThe increasing penetration of power electronic devices and distributed generation is significantly altering power quality conditions in low-voltage systems. While power quality assessment is commonly based on RMS currents, voltage quality indicators, and
Franjo Pranjić, Peter Virtič
doaj +1 more source
Harmonic distortion in microwave photonic filters
Optics Express, 2012 We present a theoretical and experimental analysis of nonlinear microwave photonic filters. Far from the conventional condition of low modulation index commonly used to neglect high-order terms, we have analyzed the harmonic distortion involved in microwave photonic structures with periodic and non-periodic frequency responses.
Rius Mercado, Manuel +3 more
openaire +3 more sources
Improvement Of Power Quality In Hvdc Transmission Systems With Auxiliary Converters
Eletrônica de Potência, 2007 This paper intends to discuss some practical results of the reverse-use of the harmonic distortion energy from idle periods in conventional HVDC converters.
J. B Parizzi +2 more
doaj +1 more source
Applicability Limits of Fixed-Spectrum Harmonic Models in Weak Low-Voltage Networks
IEEE AccessThis paper investigates the applicability limits of simplified fixed-spectrum harmonic current source models in low-voltage distribution networks under varying operating conditions.
Dawid Bula
doaj +1 more source
Harmonic distortion in CMOS current mirrors [PDF]
ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187), 2002 One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion.
openaire +1 more source
Gong-kuang zidonghua, 2012 For problems of voltage and current distortion and capacity waste of grid caused by harmonic pollution, power quality testing and analysis were given, and a scheme of using SVG for harmonic elimination and reactive power compensation were proposed ...
GUO Jin-long, LV Jing-jiang, WANG Yi-lei
doaj