Results 21 to 30 of about 1,221,637 (395)

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

Angular dependence in ultraviolet imaging of HVDC partial discharges: Mechanism investigation and correction approach [PDF]

open access: yesAIP Advances
To address the observation angle effects on the diagnosis accuracy of ultraviolet (UV) imaging for partial discharge (PD) monitoring in high-voltage direct current (HVDC) equipment, this study investigates the underlying mechanism and develops a ...
Jinwei Lv   +6 more
doaj   +1 more source

Open-Circuit Fault Diagnosis Method of Energy Storage Converter Based on MFCC Feature Set

open access: yesZhongguo dianli, 2022
Power conversion system (PCS) fault diagnosis plays an important role in the intelligent operation and maintenance of battery energy storage power stations.
Bin YU   +5 more
doaj   +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

DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

open access: yesEnergies, 2019
This article reviews the design and evaluation of different DC-DC converter topologies for Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs).
Sajib Chakraborty   +5 more
semanticscholar   +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

Fundamentals of power systems modelling in the presence of converter-interfaced generation

open access: yes, 2020
This survey paper discusses the fundamentals of power systems modelling in the presence of large amounts of converter-interfaced generation (CIG). By referring to real-life events characterised by anomalous dynamics associated to the presence of CIG, the
M. Paolone   +8 more
semanticscholar   +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

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