Results 11 to 20 of about 15,811,185 (295)

High efficiency smart voltage regulating module for green mobile computing [PDF]

open access: yes, 2014
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In this thesis a design for a smart high efficiency voltage regulating module capable of supplying the core of modern microprocessors incorporating dynamic ...
Tapou, Monaf Sabri
core   +7 more sources

A hybrid multilevel converter for medium and high voltage applications [PDF]

open access: yes, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Ahmed, Khaled   +4 more
core   +3 more sources

A magnetically isolated gate driver for high-speed voltage sharing in series-connected MOSFETs [PDF]

open access: yes, 2011
A scalable resonant gate drive circuit is described, suitable for driving series-connected MOSFETs in high-voltage, high-speed inverter applications for resistive and capacitive loads.
McNeill, Neville   +4 more
core   +3 more sources

Ageing behaviour of a polyethylene blend: influence of chemical defects and morphology on charge transport

open access: yesHigh Voltage, 2020
The properties of novel cable insulation systems will rely critically upon the morphology of the material. Here, a blend of high and low-density polyethylene (PE) was processed in order to generate three sets of samples with different morphologies.
Somyot Tantipattarakul   +2 more
doaj   +1 more source

Recent advances in High-Voltage direct-current power transmission systems [PDF]

open access: yes, 2006
The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient ...
Nikolas Flourentzou   +5 more
core   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations [PDF]

open access: yes, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
core   +4 more sources

Implications of Nonlinear Material Parameters on the Dielectric Loss under Harmonic Distorted Voltages

open access: yesEnergies, 2021
The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde   +5 more
doaj   +1 more source

Power cable stresses caused by transmission line faults in next generation VSC-MMC systems

open access: yesThe Journal of Engineering, 2019
Until today, HVDC systems based on Modular Multilevel Voltage Source Converters (VSC-MMC) have exclusively been realised with cross-linked polyethylene (XLPE) cable transmission in monopolar configuration.
Philipp Tünnerhoff   +3 more
doaj   +1 more source

Partial Discharge Behaviour of a Protrusion in Gas-Insulated Systems under DC Voltage Stress

open access: yesEnergies, 2020
High reliability, independence from environmental conditions, and the compact design of gas-insulated systems will lead to a wide application in future high voltage direct current (HVDC) transmission systems.
Thomas Götz   +2 more
doaj   +1 more source

Design and Management of High Voltage Power Systems and Insulation Materials

open access: yes, 2022
To satisfy the fast-growing electricity demand, high-voltage power systems with higher performance and better stability are required, which raises challenges including the design of power systems, the control of high-power electronics, the synthesis and ...
Yani Wang, Feng Liu, Xi Zhu
core   +1 more source

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