Results 1 to 10 of about 1,129,007 (329)
Two-point distortion theorems for harmonic mappings
Illinois Journal of Mathematics, 2009 In earlier work the authors have extended Nehari's well-known Schwarzian derivative criterion for univalence of analytic functions to a univalence criterion for canonical lifts of harmonic mappings to minimal surfaces. The present paper develops some quantitative versions of that result in the form of two-point distortion theorems.
Chuaqui, Martin +2 more
openaire +7 more sources
Influence of harmonic on loss and temperature rise of mine-used dry-type transformer
Gong-kuang zidonghua, 2016 In order to accurately analyze influence of harmonic on loss and temperature rise of transformer, a two-dimensional model of dry-type transformer was established firstly, and leakage magnetic field and harmonic loss in the dry-type transformer were ...
ZHU Jingjing +3 more
doaj +1 more source
International Journal of Electrical Power & Energy SystemsThe increasing penetration of distributed energy resources (DERs) and electric vehicles (EVs) introduces widespread power electronic devices that significantly challenge harmonic mitigation in distribution systems.
Xianghua Peng +6 more
doaj +1 more source
Investigation of Supra-Harmonics through Signal Processing Methods in Smart Grids
Transactions on Environment and Electrical Engineering, 2017 Nowadays supra-harmonic distortion studies are gaining attention day by day in power quality research area. When handling communication systems especially Power Line Carrier (PLC) systems in frequency range 2- 150 kHz, they are suitable for causing ...
Turgay Yalcin +3 more
doaj +1 more source
Harmonic Distortion in Cochlear Models [PDF]
The Journal of the Acoustical Society of America, 1957 The envelope over the train of waves traveling along the cochlear partition is asymmetrical: the distal slope being steeper than the proximal one [G. von Békésy, J. Acoust. Soc. Am. 19, 452 (1947)]. In experiments on models, this asymmetry was seen to increase with intensity.
openaire +1 more source
Applications 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
A New Standalone Photovoltaic Inverter Configuration with Low Harmonic Distortion under the Partially Shaded Condition [PDF]
E3S Web of ConferencesThis paper proposes a new standalone photovoltaic (PV) inverter topology for optimal solar power usage, which includes a new maximum power point tracking (MPPT) technique based on shading pattern analysis utilizing an adaptive neuro-fuzzy inference ...
Anusha M., Shobha Rani D.
doaj +1 more source
Reduction of alternator apparent-power requirements and harmonic distortion caused by phase-controlled parasitic loads [PDF]
Reduction of alternator apparent power requirements and harmonic distortion caused by phase-controlled parasitic ...
Gilbert, L. J., Perz, D. A.
core +1 more source
A model-based analysis method for evaluating the grid impact of EV and high harmonic content sources [PDF]
, 2015 The impact on the distribution grid when Electric Vehicles are connected is an im-portant technical question in the development of new smart grids. This paper looks in detail at the predictive capability of a model, calculating harmonic voltage and ...
Burt, Graeme M. +4 more
core
Harmonic Detection and Suppression Method for High-speed Maglev Trains Based on Adaline Algorithm
Chengshi guidao jiaotong yanjiu[Objective] In order to reduce the impact of high-speed maglev harmonics on traction network, and to ensure the normal operation of high-speed maglev trains, it is necessary to study the harmonic characteristics of the high-speed maglev traction power ...
Zhongya MAO +3 more
doaj +1 more source