Open AccessDesign and construction of new axial‐flux permanent magnet motor
Author(s) -
Alamdar Yazdi Mojtaba,
Saied Seyed Amin,
Mirimani Seyyed Mehdi
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2020.0126
Subject(s) - magnet , stator , rotor (electric) , squirrel cage rotor , ac motor , counter electromotive force , synchronous motor , flux (metallurgy) , universal motor , finite element method , mechanics , torque , electric motor , air gap (plumbing) , mechanical engineering , magnetic flux , physics , induction motor , engineering , materials science , magnetic field , electrical engineering , structural engineering , electromagnetic coil , voltage , composite material , thermodynamics , quantum mechanics , metallurgy
The present study investigated the design, simulation, and manufacturing of a new coreless stator axial‐flux permanent‐magnet motor. In addition, to magnets with magnetisation along the motor axis, the new structure included magnets that were magnetised circumferentially and buried at the rotor surface. The electromagnetic design of the conventional axial‐flux motor and the new motor was evaluated according to nominal values and design equations. In this regard, the number of poles and coils, as well as the outer diameter of both motors were assumed to be identical. It was observed that the axial length of the new motor is shorter than the conventional axial‐flux motor. Simulations were continued through comparing the motors in terms of air‐gap flux density, torque, and back electromotive force using the transient finite element method. A comparison of the results showed that the new motor had a better performance than the conventional axial‐flux motor. Subsequently, the new motor was manufactured and tested; the experimental results proved to be close to those presented in the analytical section.