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Evolutionary Mismatch, Stress, and Competition: Making Sense of Psychosocial Problems in the Polycrisis Era. [PDF]
Behav Sci (Basel)Yong JC, Lim AJ, Tan E, Chan SHM.
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Synchronous electric drive of an elevator operating in close control system
Russian Electrical Engineering, 2009A sample synchronous motor with permanent magnets has been tested in the model of a gearless drive and the results are presented. With the help of mathematical simulation, comparative calculations of synchronous motors with different geometrical sizes are carried out for two types of elevators.
V. I. Afonin, R. V. Rodionov
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Energy consumption of elevator electric drives with different control systems
Russian Electrical Engineering, 2011The power consumption of elevator electric drives with different control systems is analyzed. Rated and experimental observations for operating elevator installations are compared. The criteria of the power efficiency of the installations and their electric motors are considered.
V. I. Afonin +2 more
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Implementation and performance analysis of an elevator electric motor drive system
2008 12th International Middle-East Power System Conference, 2008The focus of this paper is the implementation and performance analysis of an elevator three-phase induction motor drive and its comparison to the traditional dual stator winding line-supplied elevator motors. To carry-on this study, a scaled prototype elevator is designed and manufactured. The elevator system motion controller is implemented via a PLC.
Mohamed Osama
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Wave processes in coils of electric motors for gearless elevator drives
Russian Electrical Engineering, 2015Provision of reliability to coils of electric motors for gearless elevator drives is considered. The results of studying wave processes in electric motors for gearless elevator drives are presented. One of the basic components of electromechanical elevator drives is an electric motor with adjustable frequency of rotation and an automatic speed control ...
V. I. Afonin +2 more
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Electric elevator drive with position control
, 2022 This thesis is a study on the implementation of an elevator’s position-controlled electric drive. The information contained within this paper serves as a framework to expand the usefulness of electric drives through the addition of digital control ...
Ford, Peter James
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2022 International Conference on Communications, Information, Electronic and Energy Systems (CIEES), 2022
Svilen Rachev, Lyubomir Dimitrov
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Svilen Rachev, Lyubomir Dimitrov
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Analysis of electrical energy consumption in elevator drives
2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012This paper examines the energy consumption in electric drives for vertical transport considering the system of a hoist machine and a variable speed drive. Most common solution for the modern elevator drives is a system consists of a Permanent Magnet Synchronous Motor as hoisting machine and three phase Variable Voltage Variable Frequency converter with
Ivica Georgiev, Slobodan Mirchevski
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Noise characteristics of electric motors of variable-frequency geared electric drives for elevators
Russian Electrical Engineering, 2010The possibilities of improving noise characteristics of geared drives with single-speed asynchronous electric motors and variable speed of rotations are considered.
V. I. Afonin, M. F. Zapadnya
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