Results 31 to 40 of about 891,437 (305)
Effect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machines [PDF]
, 2015 The effect of multilevel inverter supply on power losses in magnetic cores and electrical machines is studied. A dynamic numerical model for the hysteresis, eddy current, and excess losses in a core lamination is first developed.
Abdallh, Ahmed +5 more
core +1 more source
Mathematical and Computational ApplicationsThis work introduces a 2D model that calculates power losses in coaxial magnetic gears (CMGs). The eddy current losses of the magnets are computed analytically, whereas the core losses of the ferromagnetic segments are computed using an analytical–finite
Nikolina Nikolarea +5 more
doaj +1 more source
Non‐linear model of the switched reluctance motor with included core losses’ effects
IET Electric Power Applications, 2021 To accurately predict motor performance, considering the effects of core losses is of great importance, especially at speeds much higher than the base where the core losses represent a considerable portion of the total drive losses.
Dragan S. Mihic +2 more
doaj +1 more source
Properties of the Optical Planar Polymer Waveguides Deposited on Printed Circuit Boards [PDF]
, 2015 This paper reports on a technology for realization of an optical planar waveguide layer on duroid substrate and on FR4 fiber reinforced board material printed circuit boards.
Hyps, Petr +3 more
core +2 more sources
Large Mode Area Single Mode Fiber with a Twisted Polygon-Shaped Core
Photonics, 2022 We present numerical studies on twisted polygon-shaped core fibers for achieving single mode operation with a large mode area propagation in this paper. These large mode area fibers can achieve single mode operation due to twisting-induced high losses to
Kexiong Sun +4 more
doaj +1 more source
A best-fit model of power losses in cold rolled-motor lamination steel operating in a wide range of frequency and magnetization [PDF]
, 2007 A procedure is described for identifying a mathematical model of core losses in ferromagnetic steel based on a minimal amount of experimental data. The new model has a hysteresis loss multiplicative coefficient variable only with frequency, a hysteresis ...
Ionel, D.M., Popescu, M.
core +1 more source
An Iterative Error Correction Procedure for Single Sheet Testers Using FEM 3D Model
SensorsDetermination of single-valued BH curve and power loss curve of electric steels is an important parameter in the design of electrical machines and transformers.
Robert Krobot, Martin Dadić
doaj +1 more source
Renewable Energy and Sustainable Development, 2015 The Y-source topology has a unique advantage of having high voltages gain with small shoot through duty cycles. Furthermore, having the advantage of high modulation index which increase the power density and improve the performance of the converter.
Brwene Salah Gadalla +3 more
doaj +1 more source
Analysis of second harmonic generation in photonic-crystal-assisted waveguides [PDF]
, 2006 We study second harmonic generation in a planar dielectric waveguide having a low-index, polymer core layer, bounded by two multilayer stacks. This geometry allows exceptionally strong confinement of the light at the fundamental wavelength inside the ...
Antonella D’Orazio +6 more
core +2 more sources
Transactions on Environment and Electrical Engineering, 2017 Boost converters are needed in many applications which require the output voltage to be higher than the input voltage. Recently, boost type converters have been applied for industrial applications, and hence it has become an interesting topic of research.
Brwene Salah Gadalla +3 more
doaj +1 more source