Affiliations: [a] Department of Electrical Engineering, Hanbat National
University, Daejeon, Korea
Correspondence:
[*]
Corresponding author: Young Hyun Kim, Department of Electrical
Engineering, Hanbat National University, Daejeon 305-719, Korea. E-mail:
kimyh@hanbat.ac.kr
Abstract: This paper deals with the optimum design criteria necessary to
minimize the torque ripple of a concentrated winding Synchronous Reluctance
Motor (CW-SynRM) using Response Surface Methodology (RSM). The suitability of
using RSM with the finite element method (FEM) in practical engineering
problems is investigated with computational examples and comparisons between
the fitted response and the results obtained from analytical solutions,
according to the design variables of stator and rotor in a concentrated winding
SynRM (6slot). This research presents efficiency evaluations for a normal
synchronous reluctance motor (SynRM) and for a concentrated SynRM (CW-SynRM)
using both the coupled transient finite element method (FEM) and Preisach
modeling. These evaluations are used to analyze characteristics under the
effects of saturation and hysteresis loss. The focus of this research is on an
optimum design relative to torque density, ripple characteristics on the basis
of stator, rotor shape in a CW-SynRM and efficiency evaluation relative to
hysteresis loss, copper loss, etc. on the basis of rated load conditions in a
SynRM and CW-SynRM. Computer simulation and experimental results for the
efficiency using dynamometer show both the propriety of the proposed design
method and the high performance of the CW-SynRM.
