ORGANIZATION : EVS27
JOURNAL :
YEAR : 2013.11
VOL :
PAGE : -
In-wheel system is indispensible in eco-friendly vehicles including hybrid and fuel cell vehicles in regard to
fuel consumption and degree of freedom. This paper focuses on designing and optimizing an Interior
Permanent Magnet Synchronous Motor (IPMSM) for the system with the goals of minimizing torque ripple
and Total Harmonic Distortion (THD) of line-to-line Back Electro-Motive Force (BEMF) through response
surface methodology and finite element analysis since it is rarely possible to induce the equations which
express the relationships between the design parameters and the objective functions. In addition, the IPMSM
is comprised of 8 poles and 48 slots considering vibration and noise order, which is strongly connected to
the magnitudes of torque ripple and THD of line-to-line BEMF. Particularly, the figures of barriers installed
on both sides of magnets in rotor play the main role in satisfying the targets. In conclusion, the results from
finite element analysis are compared with those from experiment to prove the validity. Having a lower torque
ripple and THD of line-to-line BEMF, the optimum model is anticipated to show a lower degree of vibration
and noise while the electromagnetic performances such as average torque and output power are maintained
at the same with the prototype.