Title :
Analysis of Torque Pulsation Considering Interior Permanent Magnet Rotor Rib Shape Using Response Surface Methodology
Author :
Im, Young-Hun ; Hwang, Seon-Ik ; Jang, Seok-Myeong ; Choi, Jang-Young ; Choi, Ji-Hwan
Author_Institution :
Dept. of Electr. Eng., Chungnam Nat. Univ., Daejeon, South Korea
Abstract :
This paper presents an analysis of torque pulsation with respect to the rotor rib shape in an interior permanent magnet motors (IPMs) and the type of magnet materials. The effects of three parameters, the angle and length of the flux barrier and the residual flux density of the PM, are studied using the response surface methodology. Finite element analysis is used to verify that torque ripple reduction affects the optimal rotor rib shape in rare earth and ferrite PMs. In addition, the optimal barrier shapes for each magnet material are identified and compared.
Keywords :
finite element analysis; magnetic materials; permanent magnet motors; permanent magnets; response surface methodology; rotors; IPM; ferrite PM; finite element analysis; flux barrier; interior permanent magnet motors; interior permanent magnet rotor rib shape; magnet materials; optimal rotor rib shape; residual flux density; response surface methodology; torque pulsation; torque ripple reduction; Charge coupled devices; Ferrites; Response surface methodology; Rotors; Shape; Torque; Ferrite permanent magnet; finite element analysis; interior permanent magnet motor; rare earth permanent magnet; response surface methodology; torque pulsation;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2176534
