The computations of 3D magnetostatics of REPM synchronous generators using GTFM and two scalar potentials

This paper presents two methods, graph-theoretic field model (GTFM) and two scalar potentials, for computing 3D magnetostatic fields of electrical machines with permanent magnets. The 3D fields of a 60kVA and a 3kW rare earth permanent magnet (REPM) synchronous generators are computed by these two methods with 3D automatic mesh generation and incomplete Cholesky Conjugate Gradiant (ICCG) procedure. These computations are validated through the test results.