Results 81 to 90 of about 793,748 (299)

Application and development of power electronic devices in VSC-HVDC transmission system

open access: yes机车电传动, 2023
Voltage sourced converter based high voltage direct current (VSC-HVDC) is the core technology of new type of power systems with new energy as its main part.
YANG Liu   +5 more
doaj  

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

open access: yesEnergies, 2016
Many of the recent projects for new transmission line have considered the high-voltage direct current (HVDC) system, owing to the many advantages of the direct current (DC) system.
Sungchul Hwang, Jaegul Lee, Gilsoo Jang
doaj   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai   +4 more
wiley   +1 more source

Reactive power adjustable ability of HVDC under steady state condition

open access: yes电力工程技术
The high voltage direct current (HVDC) converter has a certain dynamic reactive power regulation ability. Making full use of the reactive power regulation ability of the converter station can significantly improve the stability of the HVDC. In this paper,
GUAN Xiaoyu, WANG Juanjuan, HE Qihao
doaj   +1 more source

Converter design techniques and applications [PDF]

open access: yes
Transistorized direct current voltage converters offer a number of advantages over other types because of their small size, low weight, high efficiency, high reliability, precision accuracy and wide range of control.
Lalli, V. R.
core   +1 more source

Three phase boost rectifier design [PDF]

open access: yes, 2012
An electric power can be converted from one form to another form by using power electronics devices. The function of power electronics circuits by using semiconductor devices as switch is modifying or controlling a voltage.
Saher, Rohaizan
core  

Radiation Due to Josephson Oscillations in Layered Superconductors

open access: yes, 2007
We derive the power of direct radiation into free space induced by Josephson oscillations in intrinsic Josephson junctions of highly anisotropic layered superconductors. We consider the super-radiation regime for a crystal cut in the form of a thin slice
A. E. Koshelev   +4 more
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Study the performance of High Voltage Direct Current Transmission using MATLAB

open access: yesمجلة النهرين للعلوم الهندسية, 2008
Some of the electric networks adjacent countries are linked to either the alternating current lines or to direct current lines, that is really depends upon the  eographic distance of the linking points and the amount of the used current. In view of rapid
Jameel K. Abed Al-Jashami
doaj  

Coordinated Supervisory Control of Multi-Terminal HVDC Grids: a Model Predictive Control Approach [PDF]

open access: yes, 2017
A coordinated supervisory control scheme for future multi-terminal High-Voltage Direct-Current (HVDC) grids is proposed. The purpose is to supervise the grid and take appropriate actions to ensure power balance and prevent or remove voltage or current ...
Debry, Marie-Sophie   +3 more
core   +1 more source

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