An optimization approach of rotor contour for variable reluctance resolver

An effective approach for optimizing the rotor contour for variable reluctance (VR) resolver is presented. Using this approach, the procedure for optimizing the rotor is divided into two parts: the establishment of initial shape curve, and then computation for the optimization. In order to simplify the process of the former, a shape function is constructed. And the latter is carried out by Taguchi optimization method and finite element method (FEM). An example of a 3–10 VR resolver is used to present the procedure of the optimization, and the testing results confirmed the effectivity of the approach.