Semi-Implicit Time Integration Method for a FEM-Parameterized Plant Model of a Permanent Magnet Synchronous Motor

A finite-element method (FEM)-parameterized motor model considering the armature current- and rotor position-dependent characteristics is widely used as the plant model for designing control systems of a permanent magnet synchronous motor (PMSM). However, it is necessary to achieve faster real-time simulation of the plant model. This study aims to speed up circuit simulation by avoiding iterative calculations required to solve nonlinear equations. Semi-implicit (SI) time integration methods are applied to the PMSM plant model, and the effectiveness of the presented approaches is verified.