Results 11 to 20 of about 234,335 (333)

Mutual capacitor and its applications

open access: yesThe Journal of Engineering, 2014
This study presents a new ac circuit element – the mutual capacitor, being a dual of the mutual inductor, which is also a new ac transformer. This element is characteristic of the mutual-capacitance coupling of a multi-capacitance system. A unity-coupled
Chun Li, Jason Li, Jieming Li
doaj   +1 more source

Significant enhancement of dielectric properties in polyimides with sulfonyl groups in the side chains

open access: yesIET Nanodielectrics, 2023
Polymer dielectrics with excellent thermal resistance and superior energy storage behaviour are extensively demanded with the increasing development of film capacitors applied in hostile environments. In this study, novel diamine with sulfonyl‐containing
Jinpeng Luo   +4 more
doaj   +1 more source

Three-level boost converter with zero voltage transition

open access: yesThe Journal of Engineering, 2017
As compared with the traditional boost converter, the three-level boost converter possesses several advantages, such as lower switch voltage stresses and lower inductor current ripple.
Kuo-Ing Hwu   +2 more
doaj   +1 more source

Fast Molecular-Dynamics Simulation for Ferroelectric Thin-Film Capacitors Using a First-Principles Effective Hamiltonian [PDF]

open access: yes, 2008
A newly developed fast molecular-dynamics method is applied to BaTiO3 ferroelectric thin-film capacitors with short-circuited electrodes or under applied voltage.
David Vanderbilt   +7 more
core   +2 more sources

Modified capacitor voltage balancing sorting algorithm for modular multilevel converter

open access: yesThe Journal of Engineering, 2019
The modular multilevel converter (MMC) with large-scale sub-modules has the advantage of simpler modulation, lower switching frequency, and lower harmonic component, thus would be very promising in voltage source converter (VSC)–high voltage direct ...
Jie Zhang   +5 more
doaj   +1 more source

Optimal Sizing and Placement of Capacitor Banks in Distribution Networks Using a Genetic Algorithm

open access: yesElectricity, 2021
Nowadays, response to electricity consumption growth is mainly supported by efficiency; therefore, this is the new main goal in the development of electric distribution networks, which must fully comply with the system’s constraints.
Gian Giuseppe Soma
doaj   +1 more source

Modular multilevel converter with DHB energy-balancing channels for medium-voltage adjustable-speed drives

open access: yesThe Journal of Engineering, 2019
This paper presents a modular multilevel converter (MMC) configuration that utilises energy exchange between sub-modules (SMs) of upper and lower arms, for energy rebalancing.
Mohamed S. Diab   +4 more
doaj   +1 more source

Reliability study on DC-link capacitor in fault states of VSI in elective vehicle

open access: yesThe Journal of Engineering, 2019
DC-input side of the inverter to balance input and output power, eliminate voltage fluctuation, and reduce the voltage spike in the input side. The reliability study on DC-link capacitor under fault state is critical to the safe operation of the whole ...
Fang Yao   +3 more
doaj   +1 more source

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

open access: yesNanomaterials, 2022
Dielectric composites based on ferroelectric ceramics nanofibers are attracting increasing attention in capacitor application. In this work, the sol–gel method and electrospinning technology are utilized to prepare one-dimensional Na0.5Bi0.5TiO3 (NBT ...
Yuan Liu   +8 more
doaj   +1 more source

Research on the self-healing failure characteristics and its protection methods of high-voltage self-healing capacitors

open access: yesThe Journal of Engineering, 2019
There are no reliable measures for identifying self-healing failures in capacitors. Therefore, the high-voltage self-healing capacitor have not been widely adopted in power systems yet. It is urgent to study new scheme to protect the self-healing failure
Yan Fei, Wang Zijian, Yin Ting
doaj   +1 more source

Home - About - Disclaimer - Privacy