Results 21 to 30 of about 18,574,779 (246)

An energy efficient electric drive of air units

open access: yesElektrotehnìka ta Elektroenergetika, 2021
Purpose. Improving the efficiency and energy performance of an asynchronous electric drive for stationary fan’s units of the main ventilation line of mines. Methodology.
И. М. Коцур   +3 more
doaj   +1 more source

Method of Selecting the Speed of Jack Pump Driving Motor Based on Reservoir Flow Rate

open access: yesEnergy Engineering and Control Systems, 2018
The sucker-rod oil pumping unit productivity is influenced by lots of factors, including the operation mode of the jack pump electric drive system. Settings of the electric drive system affect the system’s energy indicators, overhaul period and oil ...
Andriy Malyar   +2 more
doaj   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

open access: yes, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
E. Armando   +9 more
core   +2 more sources

Analysis of the Drive of the Electric Vehicle with Six-Phase Induction Motor

open access: yesPower Electronics and Drives, 2023
The article presents the analysis of the drive system of the electric vehicle with a six-phase induction motor. The mathematical models of the six-phase induction motor and model reference adaptive system (MRASF) estimator are presented, and the ...
Listwan Jacek, Oleszczyszyn Piotr
doaj   +1 more source

ELECTRIC DRIVE SETTING TORQUE CALCULATION METHOD IN ELECTRIC DRIVE SHUT-OFF VALVE SYSTEM WITH RECTILINEA DISPLACEMENT OF THE VALVE CLOSURE

open access: yesЗаписки Горного института, 2018
A new method for calculating the setting torque magnitude of the electric drive in the electric drive shut-off system as the main elements ensuring the safety of oil pipelines and main gas pipelines is presented.
S. A. Vasin, E. V. Plakhotnikova
doaj   +1 more source

Energy Saving in Pilger Mill Electric Drives Complete Solution [PDF]

open access: yes, 2017
This paper considers issues related to increasing energy efficiency in electric drives of pilger rolling mills, presenting kinematics of such mills, provides justification for the general load chart, presents the detailed review of reference materials on
Nikita Savosteenko   +5 more
core   +1 more source

INFLUENCE OF HIGH HARMONICS ON A FREQUENCY CONVERTER OPERATION IN UNDERGROUND MINING

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research is caused by the need to identify the causes of failure of the nodes and parts of the frequency converter, as well as the capacitor of the filter compensating device in the electric drive system of the skip hoist.
Ayaal N. Egorov   +3 more
doaj   +1 more source

Research on Energy Efficiency Characteristics of Mining Shovel Hoisting and Slewing System Driven by Hydraulic-Electric Hybrid System

open access: yesChinese Journal of Mechanical Engineering, 2023
Mining shovel is a crucial piece of equipment for high-efficiency production in open-pit mining and stands as one of the largest energy consumption sources in mining.
Xiangyu Wang   +3 more
doaj   +1 more source

Parameter Optimization of the Power and Energy System of Unmanned Electric Drive Chassis Based on Improved Genetic Algorithms of the KOHONEN Network

open access: yesWorld Electric Vehicle Journal, 2023
For unmanned electric drive chassis parameter optimization problems, an unmanned electric drive chassis model containing power systems and energy systems was built using CRUISE, and as the traditional genetic algorithm is prone to falling into the local ...
Weina Wang   +3 more
doaj   +1 more source

Development of Traction System for Engineering Vehicle Running on Long and Large Ramp

open access: yesKongzhi Yu Xinxi Jishu, 2022
To solve the problem of maintaining equipment on high-speed railway lines with long ramp,this paper designs an electric drive traction system for engineering vehicles suitable for long ramp,by increasing the power of the diesel engine and combining the ...
LIU Sanshuai   +3 more
doaj   +3 more sources

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