This article proposed a detection scheme for three-phase Line start permanent
magnet synchronous motor (LSPMSM) under different levels of static
eccentricity fault. Finite element method is used to simulate the healthy
and faulty LSPMSM with different percentages of static eccentricity. An
accurate laboratory test experiment is performed to evaluate the proposed
index. Effects of loading condition on LSPMSM are also investigated. The
fault related signatures in the stator current are identified and an
effective index for LSPMSM is proposed. The simulation and experimental
results indicate that the low frequency components are an effective index
for detection of the static eccentricity in LSPMSM.