Results 51 to 60 of about 2,149,244 (246)

Pulse sequence predictive control of permanent magnet synchronous motor powered by three-phase four-switch inverter

Gong-kuang zidonghua, 2019
In view of problems of less control degree of freedom and large ripple of current and torque in single vector predictive control method, a pulse sequence predictive control method of permanent magnet synchronous motor powered by three-phase four-switch ...
ZHANG Meimei, HAO Jianqi
doaj   +1 more source

Carrier-Phase-Shifted Rotation Pulse-Width-Modulation Scheme for Dynamic Active Power Balance of Modules in Cascaded H-Bridge STATCOMs

Energies, 2020
In the medium-voltage power distribution system, cascaded H-bridge (CHB) static synchronous compensators (STATCOMs) are widely utilized to solve power quality issues by injecting the controlled reactive current into the system. The carrier-phase-shifted (
Chen Xu, Jingjing Chen, Ke Dai
doaj   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

Medium voltage capacitor banks: characterization and transients generated [PDF]

, 2015
This review presents an analysis of the over voltage electromagnetic transient’s phenomena during an energizing and de-energizing of capacitor banks.
Jasni, Jasronita, Ab. Kadir, Mohd. Zainal Abidin, Izadi, Mahdi, Mohammad, S. G., Gomes, Chandima   +4 more
core   +1 more source

Capacitor voltage balancing strategy based on sub-module capacitor voltage estimation for modular multilevel converters [PDF]

CSEE Journal of Power and Energy Systems, 2016
The modular multilevel converter (MMC) is expected to be used extensively in high-voltage direct current (HVDC) transmission networks because of its superior characteristics over the line-commutated converter (LCC). A key issue of concern is balancing sub-module capacitor voltages in the MMCs, which is critical for the correct operation of these ...
ABDELSALAM, Mahmoud, Marei, Mostafa, TENNAKOON, Sarath, GRIFFITHS, Alison   +3 more
openaire   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Integrated optimization of loss distribution and capacitor voltage ripple for MMC devices

电力工程技术
Under inverter operating conditions, significant loss is incurred by the insulated gate bipolar transistor (IGBT) (referred to as T2 tube) in the lower part of the half-bridge submodule.
SU Tiantian, LU Maozeng, MA Xinxi, ZHAO Yanlei, ZHANG Housheng   +4 more
doaj   +1 more source

Active power filtering by a flying-capacitor multilevel inverter with capacitor voltage balance [PDF]

2008 IEEE International Symposium on Industrial Electronics, 2008
A new control strategy is developed for a four-level flying capacitor multilevel inverter to function as an active power filter (APF). This employs space vector modulation (SVM) scheme. However inverter switching vectors and sequences are determined according to the swings of capacitor voltage values at each level. A modified predictive current control
null Junfei Hu, null Li Zhang, S. J. Watkins   +2 more
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source