Results 21 to 30 of about 798,128 (353)

A bridgeless Cuk PFC converter [PDF]

open access: yes, 2011
A bridgeless Power Factor Correction (PFC) circuit based on Cuk converter is proposed in this paper. The operation during each sub-interval modes of the converter operated in Discontinuous Conduction Mode (DCM) is discussed.
Mohamed Yatim, Abdul Halim   +2 more
core   +1 more source

Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]

open access: yes, 2016
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A.   +3 more
core   +2 more sources

Nonlinear photon emission and discharge mode transitions in HVDC needle–needle electrodes: Insights from UV photon spot distribution mapping [PDF]

open access: yesAIP Advances
This study proposes a methodology for the development of ultraviolet (UV) spot distribution mapping with probabilistic processing, with the objective of addressing the challenges associated with the monitoring of partial discharge (PD) in high-voltage ...
Zhiliang Yin   +5 more
doaj   +1 more source

Thermal Effect and Metallurgical Characteristics of Hydrogen Bottom Blowing in Top–Bottom Combined Blowing Converter

open access: yesMetals, 2022
A new technology of hydrogen bottom blowing instead of traditional argon blowing in the current converter steelmaking process is proposed herein, in the aim of overcoming problems such as energy shortages caused by increased scrap charging, the low ...
Jianhua Liu   +6 more
doaj   +1 more source

Comparative feasibility study of partial power converter for interfacing battery energy storage into power system of future circular collider [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
The recent appearance of partial power converters has shown their potential to significantly improve the efficiency and power density of power electronic systems. However, their feasibility in different applications is not sufficiently studied.
Andrii Chub   +3 more
doaj   +1 more source

Digital Twin Development of a Testing Grid Using a Grid Analyzer

open access: yesIEEE Open Journal of Power Electronics
The recent transformation of the energy sector brings new challenges in areas such as supply security, efficiency, and reliability. Especially the increase of decentralized power plants leads to a more complex energy system and an increasing complexity ...
Derk Gonschor   +9 more
doaj   +1 more source

РОЗРОБКА МОДЕЛІ МОДЕРНІЗОВАНОГО ЧАСТОТНО-КЕРОВАНОГО ТЯГОВОГО ЕЛЕКТРОПРИВОДА ЗІ ЗМІННИМ АЛГОРИТМОМ КЕРУВАННЯ ДИЗЕЛЬ-ПОЇЗДА ДЕЛ-02

open access: yesElektrotehnìka ta Elektroenergetika, 2010
Розроблено модель системи асинхронного електропривода дизель-поїзда з додатковим внутрішнім зворотнім зв’язком за частотою поля двигуна.
D. О. Kulagin   +2 more
doaj   +1 more source

Converts

open access: yes, 2018
This chapter discusses Western converts to Islam. Particularly since the turn of the century, when so much focus on Islam has been in the context of violence and terrorism, the embracing of Islam by Westerners has become a perplexing phenomenon. On the one hand, segments of Western society express disapproval of converts to Islam, but on the other hand,
Duderija, Adis, Rane, Halim
openaire   +2 more sources

Improvement of speed response in four-phase DC–DC converter switching using two shunt voltage-source [PDF]

open access: yes, 2018
This study proposes a technique that is able to improve the speed response of a four-phase DC–DC converter switching. The basic concept of the proposed technique is the inclusion of two shunt-connected voltage sources in series to the converter system ...
A. Yahaya, Jabbar   +2 more
core   +1 more source

Maximum power point tracking converter based on the open-circuit voltage method for thermoelectric generators [PDF]

open access: yes, 2015
Thermoelectric generators (TEGs) convert heat energy into electricity in a quantity dependant on the temperature difference across them and the electrical load applied.
Knox, Andrew, Montecucco, Andrea
core   +1 more source

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