This paper proposes an analytical calculation method of frequency characteristics of DC input impedances of an IPM motor drive system for design and stability analysis by the impedance method. The proposed method is based on an averaged frequency model linearized at an operating point. The developed small-signal model considers control principles and mechanical perturbations. It is an analog and digital mixed model which is controlled by a digital signal processor system. Analysis examples of frequency characteristics for the impedance method by the proposed method are investigated and validated analytically and experimentally.

中文翻译：

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IPM电机驱动系统稳定性分析的直流输入阻抗解析方法

本文提出了一种IPM电机驱动系统直流输入阻抗频率特性的解析计算方法，用于阻抗法的设计和稳定性分析。所提出的方法基于在工作点线性化的平均频率模型。开发的小信号模型考虑了控制原理和机械扰动。它是由数字信号处理器系统控制的模拟和数字混合模型。通过分析和实验研究并验证了所提出方法的阻抗法频率特性的分析实例。