Results 11 to 20 of about 135,228 (292)

Dynamic Traction of Deep-Sea Polymetallic Nodule Collector

open access: yesJournal of Marine Science and Engineering, 2023
The ocean is extremely rich in mineral resources. To cope with the shortage of land mineral resources, countries are focusing on the development of deep-sea mineral mining technology.
Yuheng Song   +4 more
doaj   +1 more source

Powerflow calculations in powersystems considering traction load

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract Nowadays, the negative impact of traction load on power system operation poses a serious problem that may lead to false tripping or even failures of relay protection devices and reduce the quality of electrical energy. This situation is typical for the Zabaikal power system, in which in some areas the share of electricity ...
Shestakova, Vera Vasiljevna   +2 more
openaire   +3 more sources

The role of traction in membrane curvature generation. [PDF]

open access: yes, 2018
Curvature of biological membranes can be generated by a variety of molecular mechanisms including protein scaffolding, compositional heterogeneity, and cytoskeletal forces.
Alimohamadi, H   +4 more
core   +1 more source

Traction Calculation for Modular Energotechnological Unit Given Kinematic Mismatch of Driving Axles

open access: yesСельскохозяйственные машины и технологии, 2022
The power of the engine of energy-saturated tractors often proves not to be fully used. One of the solutions to this problem might be the use of the unit technological part as an active coupling weight.
A. V. Lavrov   +3 more
doaj   +1 more source

Development of Urban Electric Bus Drivetrain [PDF]

open access: yes, 2019
The development of the drivetrain for a new series of urban electric buses is presented in the paper. The traction and design properties of several drive variants are compared.
Chyský J.   +5 more
core   +1 more source

Impact analysis of traction loads on power grid based on probabilistic three-phases load flow

open access: yesThe Journal of Engineering, 2019
Electrified railway traction power supply system is directly powered by 110 kV or 220 kV (some 330 kV) high-voltage power grid. The uncertainty, non-linearity, and asymmetry of traction loads like the electric locomotives and electric multiple units ...
Yulong Che   +5 more
doaj   +1 more source

Algorithm for calculating the rail-ground potential in heavy load conditions [PDF]

open access: yesE3S Web of Conferences, 2021
Increased freight turnover on railway transport inevitably leads to increased traction current in DC and AC traction power supply systems. The increase in traction current is already causing problems related to the normal operation of the 25 kV AC ...
Ignatenko Ivan   +3 more
doaj   +1 more source

Energy efficiency and integration of urban electrical transport systems: EVS and metro-trains of two real European lines [PDF]

open access: yes, 2019
Transport is a main source of pollutants in cities, where air quality is a major concern. New transport technologies, such as electric vehicles, and public transport modalities, such as urban railways, have arisen as solutions to this important problem ...
Cucala, Asunción P.   +3 more
core   +1 more source

Application and Research of Traction Calculation in Specific Project of Rail Transit

open access: yesKongzhi Yu Xinxi Jishu, 2021
Traction calculation is based on mechanics, and is a scientific calculation for trains running along the track and for related problems, under the joint action of traction, resistance, and braking force in rail transportation.
YANG Haipeng, XUE Qiaoli
doaj  

FPGA Implementation of a General Space Vector Approach on a 6-Leg Voltage Source Inverter [PDF]

open access: yes, 2011
A general algorithm of a Space Vector approach is implemented on a 6-leg VSI controlling a PM synchronous machine with three independent phases. In this last case, the necessity of controlling the zero-sequence current motivates the choice of a special ...
BRUYERE, Antoine   +6 more
core   +6 more sources

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