Response surface methodologies for the design of induction machine self-sensing rotor position saliencies

Response surface methodologies are useful in the design and analysis of induction machine self-sensing rotor position or saturation-induced saliencies. These methodologies allow for the capture of interactive effects among independent design variables and the minimization of the number of simulations required to characterize the behavior of a saliency. The influence of three independent design variables on two rotor position saliencies was investigated. The two saliency types were rotor bridge opening width modulation and rotor bridge opening height modulation. A Box-Behnken response surface methodology was used to create a series of induction machine finite element models for each saliency type. Empirical models of saliency harmonic magnitudes as a function of the independent design variables were determined.