Results 41 to 50 of about 295,261 (308)

Effect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machines [PDF]

open access: yes, 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

SiC/GaN power semiconductor devices: a theoretical comparison and experimental evaluation under different switching conditions [PDF]

open access: yes, 2017
The conduction and switching losses of SiC and GaN power transistors are compared in this paper. Voltage rating of commercial GaN power transistors is less than 650V while that of SiC power transistors is less than 1200V.
Acanski M.   +12 more
core   +2 more sources

A Switching Converter Losses Decreasing Method

open access: yesProceedings of Tomsk State University of Control Systems and Radioelectronics, 2022
A signal timing calculation method to control power switches of bidirectional switching converter (SC) with high efficiency is proposed. The method is applicable for MOSFET-based cascaded boost-buck converter, which has a negative offset current flow at the beginning of each conversion period.
O. V. Nepomnyashchiy   +3 more
openaire   +1 more source

A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations

open access: yesEnergies, 2018
This paper proposes a highly efficient single-phase three-level neutral point clamped (NPC) converter operated by a model predictive control (MPC) method with reduced commutations of switches. The proposed method only allows switching states with none or
Eun-Su Jun, Sangshin Kwak
doaj   +1 more source

Performance Evaluation of the Labelled OBS Architecture [PDF]

open access: yes, 2010
A comparison of three different Optical Burst Switching (OBS) architectures is made, in terms of performance criteria, control and hardware complexity, fairness, resource utilization, and burst loss probability. Regarding burst losses, we distinguish the
Brochier, Nicolas   +2 more
core   +5 more sources

Comparisons of Loss Reduction Techniques Based on Pulsewidth Modulation and Model Predictive Control for Three-Phase Voltage Source Inverters

open access: yesMachines, 2023
Due to the lack of comparative studies between discontinuous pulse-width modulation and model predictive control methods for reducing switching losses in two-level three-phase voltage source inverter, a comparative analysis of a generalized discontinuous
Minh Hoang Nguyen   +2 more
doaj   +1 more source

Experimental and analytical performance evaluation of SiC power devices in the matrix converter [PDF]

open access: yes, 2014
With the commercial availability of SiC power devices, their acceptance is expected grows in consideration to the excellent low switching loss, high temperature operation and high voltage rating capabilities of these devices.
Castellazzi, Alberto   +2 more
core   +1 more source

Power Loss Analysis of a Five-Phase Drive System Using a Synchronous Reluctance Motor and an Indirect Matrix Converter with Reduced Switching Losses

open access: yesMachines, 2022
This paper introduces and analyzes the power losses of a five-phase drive system based on an indirect matrix converter (IMC) and a five-phase synchronous reluctance motor (SynRM).
Kotb B. Tawfiq   +2 more
doaj   +1 more source

Optical Interconnection Networks Based on Microring Resonators [PDF]

open access: yes, 2010
— Interconnection networks must transport an always increasing information density and connect a rising number of processing units. Electronic technologies have been able to sustain the traffic growth rate, but are getting close to their physical limits.
Bianco, Andrea   +6 more
core   +2 more sources

Quantifying Incomplete Zero-Voltage Switching Losses Using Equivalent Hard-Switching Losses

open access: yes
With fast switching wide band-gap semiconductors conquering high-power application, zerovoltage switching (ZVS) topologies are crucial toincrease converter efficiency by minimizing switchinglosses. However, ZVS criteria cannot always be fulfilledin the entire operating range of the converter.
Zäch, Mike Robin   +3 more
  +5 more sources

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