TK1008 : Investigating the performance of a dual-rotor axial-flux induction motor with independent bearings as an electric vehicle driver considering the mechanical load model of the slope and road conditions
Thesis > Central Library of Shahrood University > Electrical Engineering > MSc > 2024
Authors:
Alireza Hesari [Author], Ahmad Darabi[Supervisor]
Abstarct: In this thesis, the performance of a dual rotor axial flux induction motor with two degrees of freedom as the primary drive of an electric vehicle has been discussed. The stability and correct operation of the car in the condition of uneven load on the drive wheels, such as moving in curved path (turning), or placing the drive wheels under uneven friction, such as ice load, is important and depends on the response of the drive. Therefore, the car needs a system that takes the task of speed-torque coordination between the driving wheels. In most electric cars with a central drive, the mechanical differential is responsible for this task. In structures with more than one driver, the electric control system or electric differential takes the place of the mechanical differential and provides torque speed coordination between electric motors baxsed on different control methods. In structures with multiple drive, a separate power electronic converter is required for each motor. The purpose of this thesis is to investigate the performance of a dual rotor axial flux induction motor with two degrees of freedom as the primary driver of the car, where each rotor is mechanically independent from each other and provides the required power for the car. Since this motor inherently has a mechanical differential process, it is possible to remove any differential system and only a central converter and a simple voltage-frequency control method are needed. This issue causes the control complexities in two drive structures and the high cost of the drive and control system to disappear and reduce the total cost. This claim has been verified by modeling the vehicle load in different conditions with Matlab/Simulixnk simulations and then applying the load to the motor in Ansys Maxwell finite element software.
Keywords:
#Axial flux induction motors-Electric vehicle-Electrical differential-Dual rotor motor-Vehicle load modeling Keeping place: Central Library of Shahrood University
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