关键词: 内置式永磁同步电机, 偏心故障, 代理模型, 参数化建模

Abstract: To address the challenge that traditional modeling methods for eccentricity faults struggle to balance accuracy and efficiency, this paper proposes a high-precision surrogate modeling method for interior permanent magnet synchronous motor ( IPMSM ) that considers magnetic saturation and cross-coupling effects. The method constructs a parameterized inductance lookup table based on finite element data and employs linear interpolation to achieve mapping from multi-state conditions to electromagnetic characteristics. The proposed model is validated through finite element simulations and locked-rotor experiments. The results demonstrate that the model exhibits excellent performance in steady-state accuracy and computational efficiency.

Key words: interior permanent magnet synchronous motor, eccentricity fault, surrogate model, parametric modeling