Results 1 to 10 of about 3,281,012 (248)

Optimal starting frequency of three-phase induction motor

open access: yesIET Electric Power Applications, 2022
In its applications, the starting performance of a 3‐phase induction motor (IM) is very important. The starting torque of the motor should be as high as possible within the safe current range of the motor driver.
Haixu Chen, Chao Bi
exaly   +2 more sources

Reduction of Starting Current in Large Induction Motors

open access: yesEnergies, 2022
Large induction motors can have a high inrush and run-up current during starting, often up to ten times the rated current. In weak supplies, this could be a problem, causing system stability issues and the voltage to dip below acceptable levels.
Mathew Habyarimana   +2 more
doaj   +1 more source

Analysis of the Influence of a Powertrain Mounting System on a Dual-Clutch Transmission Vehicle under Typical Working Conditions

open access: yesApplied Sciences, 2022
The unsuitably designed powertrain mount may cause jittering and shrugging during the starting and shifting processes of the vehicle, which seriously affects the comfort of using the vehicle.
Zheng Guo   +4 more
doaj   +1 more source

I–f closed‐loop starting strategy of high‐speed PMSM based on current vector adaptive regulation

open access: yesIET Power Electronics, 2023
Conventional I–f startup control algorithms often lead to significant speed fluctuations, extended convergence times, and sluggish dynamic responses when the motor is working at the acceleration process.
Guxuan Xu, Feng Zhao, Tao Liu
doaj   +1 more source

When Is Immigration Selection Discriminatory?

open access: yesAJIL Unbound, 2021
Managing global migration is one of the most pressing issues of our time. Traditionally, international law has not generally regulated immigration and citizenship law; it defers to state authority in setting up rules and procedures for entry into the ...
Liav Orgad
doaj   +1 more source

Warning model study of debris flow slope source starting based on experimental method

open access: yesShui kexue jinzhan, 2018
To further realize the correlation between rainfall and the starting mechanism of the slope debris flow in the source area of Yindongzi gully, a typical model was selected after a detailed fieldwork and engineering investigation.
QIAO Jianping   +4 more
doaj   +1 more source

On Communications War: Public Interest Communications and Classical Military Strategy

open access: yesJournal of Public Interest Communications, 2018
Strategic communication disciplines routinely use terms such as strategy, tactics, and objectives that originated in strategic military science. I argue here that a better understanding of classical military strategic thinking is relevant to public ...
Jasper Fessmann
doaj   +1 more source

A methodology for non-invasive diagnosis of diesel engines through characteristics of starter system performance

open access: yesDiagnostyka, 2022
In this work, a methodology to diagnose ten diesel bus engines is carried out by means of some characteristics of the starting system performance. The signals of battery voltage, electric current supplied to the starter motor and crankshaft revolutions ...
Juan David Ramirez   +3 more
doaj   +1 more source

Coupled autotransformer and magnetic-control soft-start method for super-large-capacity high-voltage motors

open access: yesHigh Voltage, 2019
The large current generated by a direct start of the super-large-capacity high-voltage induction motor would have a huge impact on the power grid as well as the motor itself.
Jiaxin Yuan   +5 more
doaj   +1 more source

Design, construction, and testing of an aero-engine starter-generator for the more-electric aircraft

open access: yesThe Journal of Engineering, 2019
This study describes the design, construction, and testing of an aero-engine starter-generator and its associated power electronic converter. A high-speed, permanent magnet machine and a dual-channel machine-facing converter with an electrical power ...
Ajith Balachandran   +5 more
doaj   +1 more source

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