Results 31 to 40 of about 125,272 (308)

CALCULATION OF A MECHANICAL CHARACTERISTIC OF ELECTRIC TRACTION MOTOR OF ELECTRIC VEHICLE

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
The traction characteristic of an electric vehicle is the main characteristic of mechanical system that reflects its key performance indicators. Implementation of the traction characteristic is based on controlling angular speed and torque of electric ...
Phuong Le Ngo, G. I. Gulkov
doaj   +1 more source

Highly reliable switched reluctance motor for the traction electric drive system of railway rolling stock

open access: yesОмский научный вестник, 2023
The main purpose of this work is to create conditions for the use of switched reluctance motor in the traction electric drive system of rolling stock by increasing the reliability of its bearings.
E. E. Miroshnichenko
doaj   +1 more source

Position-sensorless control of permanent-magnet-assisted synchronous reluctance motor [PDF]

open access: yes, 2003
The sensorless control of permanent-magnet-assisted synchronous reluctance (PMASR) motors is investigated, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter.
Guglielmi, Paolo   +3 more
core   +1 more source

Analysis of power converters with devices of SiC for applications in electric traction systems [PDF]

open access: yes, 2016
This article presents the analysis of two topologies of power converters. Voltage Source Inverter (VSI) and Current Source Inverter (CSI) proposals for traction system applications, these topologies are implemented with silicon carbide devices.
Fernández Palomeque, Efrén Esteban   +3 more
core   +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

Performance analysis of shearer driven by motor and hydraulic torque converter

open access: yesGong-kuang zidonghua, 2018
Currently shearer is mainly driven by motor and frequency converter, and it is difficult to meet requirement of larger output torque when cutting complex coal seam at low speed. In view of the problem, performance of shearer driven by motor and hydraulic
WU Senfeng
doaj   +1 more source

Operational Diagnostics System for Asymmetric Emergency Modes in Traction Drives with Direct Torque Control

open access: yesApplied Sciences, 2023
This article presents an analysis of the causes behind the development of asymmetric modes in a traction drive system that features direct torque control (DTC) of a rolling stock with asynchronous traction motors.
Sergey Goolak   +4 more
doaj   +1 more source

Sustainable bioplastics manufacturing from renewable sources

open access: yesFEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto   +6 more
wiley   +1 more source

Motor-traction Contracts system

open access: yesIzvestiya of Saratov University. Economics. Management. Law, 2008
In the article problems of the market relations influence on the forming of the motor-traction contracts system are analyzed. In the work it is concluded, that the majority of contracts, connected with freight, supplement each other and make interconnected system of contracts.
openaire   +1 more source

Enzymatic and microbial routes to bioplastics: The green chemistry frontier of biopolymers

open access: yesFEBS Open Bio, EarlyView.
Microbial biosynthesis and engineered enzyme platforms are expanding the design space of polyhydroxyalkanoate bioplastics. By combining fermentation, PHA synthase engineering and cell‐free modular systems, tailored biodegradable polymers can be produced with tunable properties, supporting more sustainable materials and future circular bioeconomy ...
Giovanni Gallo   +4 more
wiley   +1 more source

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