Comparison of the ${mbi A}^{*}{-}{mbi A}$ and ${mbi T}, \Phi {-}\Phi$ Formulations for the 2

We present two eddy-current field potential formulations to solve rotating electrical machine problems by applying the finite-element method (FEM) using the motional A ^*- A-potential formulation and the motional T, Phi-Phi-potential formulation. We use the single-phase and three-phase solid-rotor induction motors of Problem No. 30a of TEAM Workshops to compare the potential formulations. We have solved both problems in the time domain and the frequency domain.