Results 51 to 60 of about 14,625 (210)
New multilevel inverter based on reduced switch basic cell for high voltage levels
IET Power ElectronicsIn this study, to solve total harmonic distortion (THD) and voltage stress on switches, challenges have been made by presenting a new multi‐level inverter (MLI). The proposed topology can operate with both symmetric and asymmetric sources.
Ali Seifi +3 more
doaj +1 more source
Overcurrent protection based on ANNs for smart distribution networks with grid‐connected VSIs
IET Generation, Transmission & Distribution, 2021 Recently, the global concern for protection coordination is growing with the impact of distributed generators connected to medium voltage distribution system.
Mostafa Bakkar +3 more
doaj +1 more source
Advanced Materials, EarlyView.Bulk CdGeAs2, a well‐known nonlinear optical semiconductor, exhibits an exceptionally large room‐temperature nonlinear Hall effect (NLHE), achieving a record‐high nonlinear Hall responsivity of 2.2 × 10−3 m/V. This pronounced NLHE enables broadband frequency mixing up to the megahertz regime, establishing CdGeAs2 as a promising platform for next ...
Seng Huat Lee +16 more
wiley +1 more source
A three‐phase three‐level converter with shared flying capacitors
IET Power Electronics, EarlyView., 2023 Three‐phase multilevel converters use a high number of components which increases their size. As specific weight reduction is a work of interest for embedded system applications, this paper presents a topology aiming to optimize volume and mass for a three‐level three‐phase inverter. The number of passive and active components is reduced thanks to the ‘
Maxime Pain +2 more
wiley +1 more source
Analysis of HVDC convertor transformer core saturation instability, and design of a data acquisition system for its assessment [PDF]
, 1987 This thesis is divided into two parts; The analysis of HVDC convertor transformer core saturation instability, and the design of a flexible data acquisition system for its assessment.
Chen, Shiun
core +1 more source
A novel nine‐level inverter, applicable in air plane ground power unit
IET Power ElectronicsIn this study, a novel nine‐level inverter using one voltage source, 10 unidirectional and one bidirectional power switches, and two capacitors has been proposed to utilize in ground power units (GPUs).
Reza Ebrahimi, Hossein Madadi Kojabadi
doaj +1 more source
IET Generation, Transmission & Distribution, 2021 The conventional selective harmonic elimination method of random pulse width modulation (RPWM) is only suitable for the two‐level inverter. Furthermore, when the harmonics below 6 kHz are selectively eliminated, it is easy to cause a low average ...
Guohua Li, Dongman Cao, Yufeng Wang
doaj +1 more source
IEEE transactions on power electronics, 2022 State-of-the-art soft-switching modulations such as critical conduction mode and triangular current mode increase the conduction loss of power semiconductors and require variable switching frequencies; thus, these soft-switching methods are seldom used ...
Yunlei Jiang +5 more
semanticscholar +1 more source
Peptide‐Induced Ferroelectricity in Charge‐Transfer Supramolecular Materials
Advanced Materials, EarlyView.Bio‐inspired supramolecular charge‐transfer amphiphiles self‐assemble into nanoribbons in water, where peptide chirality‐induced symmetry breaking generates robust ferroelectricity across multiple systems. These water‐processable organic ferroelectrics also enhance neuronal outgrowth and electrophysiological maturity, offering a versatile strategy for ...
James V. Passarelli +15 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 The proposed TB‐SCMLI is able to provide seven levels of output voltage by balancing the voltage of two capacitors with the given control logic. The various SCMLIs are evaluated to determine the contribution of the suggested TB‐SCMLI topology's merits and downsides.
Md. Reyaz Hussan +4 more
wiley +1 more source