Abstract The increased application of multiphase (more than three-phase) synchronous motor requires it to be investigated from stability point of view. Therefore, this paper primarily addresses the stability analysis of a six-phase synchronous motor during steady-state operation using eigenvalue criteria from its derived linearized model. Based on the variation of dominant eigenvalues, region of instability is determined under different parametric variation and working conditions. Results establish a preferable method for motor stabilization at its design stage as well as under normal working conditions. Analysis has been carried out by using the approach of Park’s (dq0) transformation in MATLAB environment together with some experimental results.

中文翻译：

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六相同步电机小信号稳定性特征值分析

摘要 多相（多于三相）同步电机的应用越来越广泛，需要从稳定性的角度对其进行研究。因此，本文主要讨论了六相同步电机在稳态运行期间的稳定性分析，使用其派生的线性化模型的特征值标准。根据主导特征值的变化，确定不同参数变化和工况下的不稳定区域。结果建立了一种在设计阶段和正常工作条件下稳定电机的优选方法。在MATLAB环境下利用Park(dq0)变换的方法结合一些实验结果进行了分析。