Application of response surface methodology combined with experimental design for improving torque performance of interior permanent magnet synchronous motor

This paper deals with two types of interior permanent magnet synchronous motor (IPMSM), prototype and V-type. One of the both, V-type, is optimized in the rotor shape to obtain better performance than the prototype. Response surface methodology (RSM), as an optimization method, is applied in this paper. In addition, full factorial design (FFD) is used to raise the precision of optimization and reduce the iteration of experiment in the application of RSM. In the end, the usefulness of RSM combined with FFD is verified through the comparison between the fitted response and the results obtained from 2-dimensional finite element analysis.