The Mitigation of Eddy-Current Losses in Ferromagnetic Samples Produced by Laser Powder Bed Fusion
IEEE Access, 2022 We study the use of topology optimization in the design of low-loss ferromagnetic core structures for additively manufactured electrical machines. The test case was a simple toroid core with a primary and a secondary winding.
Aino Manninen +5 more
doaj +1 more source
PCF Based Sensor with High Sensitivity, High Birefringence and Low Confinement Losses for Liquid Analyte Sensing Applications [PDF]
, 2015 In this paper, we report a design of high sensitivity Photonic Crystal Fiber (PCF) sensor with high birefringence and low confinement losses for liquid analyte sensing applications.
Ademgil, Huseyin, Haxha, Shyqyri
core +3 more sources
Power Losses Models for Magnetic Cores: A Review
Micromachines, 2022 In power electronics, magnetic components are fundamental, and, unfortunately, represent one of the greatest challenges for designers because they are some of the components that lead the opposition to miniaturization and the main source of losses (both ...
Daniela Rodriguez-Sotelo +5 more
doaj +1 more source
Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]
, 2016 This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano +3 more
core +1 more source
IEEE Access, 2020 Five-phase induction machines (FPIM) have attracted notable interest in safety critical applications as well as wind energy generation systems. This is largely due to their additional degrees of freedom that retain the machine starting/running steadily ...
Abdullah Shawier +4 more
doaj +1 more source
Minimum Loss Operation and Optimal Design of High-Frequency Inductors for Defined Core and Litz Wire
IEEE Open Journal of Power Electronics, 2020 This paper studies the loss-optimal design of a power inductor employed in a 2 kW, 400 V input DC-DC converter. The design of an inductor is subject to a large number of design parameters and the implications of the different design parameters on the ...
Panteleimon Papamanolis +3 more
doaj +1 more source
Determination of Core Losses Using an Inverse Modeling Technique
IEEE Access, 2022 This paper presents an inverse thermal modeling technique to determine the core losses from the temperature rise inside the transformer core. For this purpose, initially, a customized printed circuit board (PCB) with thermal sensors is used to measure ...
Osaruyi Osemwinyen +5 more
doaj +1 more source
An Ultra-Low Bending Loss Negative Curvature Hollow Core Fiber With a Polygon Jacketing Layer
IEEE Photonics Journal, 2023 We design and simulate a new type of hollow-core antiresonant fiber with the polygon jacketing layer. Through numerical calculations, the confinement loss is approximately 0.003 dB/km at 1.45 μm and the bandwidth is ∼ 410 nm @
Yun-Hao Xu +6 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
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