Spectral element model for 2-D electrostatic fields in a linear synchronous motor

This paper presents a fast and accurate 2-D spectral element model for analyzing electric field distributions in linear synchronous motors. The electric field distribution is derived using the electric scalar potential for static cases. The spatial potential and electric field distributions obtained by the spectral element method are validated by finite element analysis. Protrusions, voids and rounded edges in the motor geometry are taken into account without loss of accuracy. Furthermore, the convergence and computational load of the spectral element model is investigated.