Results 31 to 40 of about 1,219 (265)

Implementation of Power Factor Correction using Asynchronous Boost Converter on Single Phase Full-Bridge Diode

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2023
In various industrial applications, the use of a power supply that uses a conventional diode single-phase rectifier topology results in high harmonic values in the electricity distribution system.
Masramdhani Saputra   +3 more
doaj   +1 more source

Harmonic Elimination of 25 kV AC Electric Railways Utilizing a New Hybrid Filter Structure [PDF]

open access: yesAUT Journal of Electrical Engineering, 2017
Thyristor rectifiers are widely used in electric railways in order to control the speed. As a consequence of their usage in addition to substantial input lead current, an enormous amount of harmonics is injected into the grid.
S. Yousefi   +4 more
doaj   +1 more source

An Improved Sliding Mode Direct Power Control Strategy Based on Reactive Power Compensation for Vienna Rectifier

open access: yesIEEE Access, 2022
Vienna rectifiers are widely used in electric vehicle charging systems, wind power generation systems and other fields due to their excellent high-voltage resistance, small size and high efficiency. Aiming at the problems of the Vienna rectifier’s
Yaodong Wang, Yinghui Li, Shun Huang
doaj   +1 more source

Virtual synchronous motor based-control of Vienna rectifier

open access: yesEnergy Reports, 2020
Vienna rectifiers are widely used because of their advantages of high power-factor, low voltage stress on the power semiconductor switches, high power density, stable output voltage, low current harmonic content, and good economics. And gradually applied
Xiangwu Yan   +5 more
doaj   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

open access: yesAdvanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee   +10 more
wiley   +1 more source

Negative Impact Mitigation on the Power Supply System of a Fans Group with Frequency-Variable Drive

open access: yesEnergies, 2022
The technological installations’ characteristics are possible to improve by equipping fans with a frequency-controlled electric drive. However, it can lead to an electromagnetic compatibility problem in the electrical supply system.
Yerbol Yerbayev   +6 more
doaj   +1 more source

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam   +17 more
wiley   +1 more source

Rectifier transformers in electric traction substations – different designs [PDF]

open access: yesTransport, 2005
Electric traction in Poland is supplied with dc voltage which is obtained from the power grid via traction substations equipped with transformers and rectifiers.
B. Kulesz
doaj  

Fiber‐reinforced Liquid Metal Composites With Automated Circuit Fabrication for Structurally‐Integrated Power Transfer

open access: yesAdvanced Functional Materials, EarlyView.
Fiber‐reinforced liquid metal composites (FibRe LMCs) are introduced that combine GPa‐scale structural performance with digitally programmable electrical conductivity. Through automated CNC activation, conductive pathways and wireless power transfer circuits are fabricated directly within load‐bearing composites, enabling structurally integrated ...
John Joyce   +5 more
wiley   +1 more source

Role of slow delayed rectifying potassium current in dynamics of repolarization and electrical memory in swine ventricles

open access: yesThe Journal of Physiological Sciences, 2014
Dynamics of repolarization, quantified as restitution and electrical memory, impact conduction stability. Relatively less is known about role of slow delayed rectifying potassium current, I(Ks), in dynamics of repolarization and memory compared to the rapidly activating current I(Kr).
Linyuan, Jing   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy