Open AccessOptimal design of motor shape and magnetisation direction to obtain vibration reduction and average torque improvement in IPM BLDC motor
Author(s) -
Kim Hongseok,
Kwon Byungil
Publication year - 2017
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.2016.0618
Subject(s) - chamfer (geometry) , stator , rotor (electric) , torque , vibration , reduction (mathematics) , control theory (sociology) , torque motor , computer science , direct torque control , engineering , materials science , acoustics , physics , mathematics , mechanical engineering , induction motor , voltage , geometry , electrical engineering , control (management) , artificial intelligence , thermodynamics
An optimal design for the interior permanent magnet (IPM) motor is proposed to reduce vibration and increase average torque, based on simultaneous consideration of the rotor d‐ axis notch shape, the stator chamfer angle, and the magnetisation direction. The notch shape of the rotor and the chamfer of the stator tooth shape were first reviewed in order to reduce the vibration of the IPM motor; however, the optimal shapes for reduced vibration also reduced the average torque. Then, a design optimisation for average torque improvement was performed considering the magnetisation direction and the vibration reduction based on the modelled stator and rotor shapes. Finally, the validity and superiority of the optimised design were confirmed by manufacturing and testing a prototype motor.