In this article, an incremental inductance approach is used for static eccentricity detection under off-line condition. This method uses the DC values of the $q$ -axis voltage, which makes it independent of the bandwidth of the controller. In this work, a new feature, the height of hump of the incremental inductance curve, along with the known feature, saturation current in the $d$ -axis, was used for fault detection. It is shown that this new feature is independent of the machine operating temperature, which makes the method robust with respect to machine operating temperature. It is also shown that the proposed method is robust to the rotor position misalignment. A new controller for off-line testing was designed, which controls both the speed and saturation of the machine. Using this controller, the hardware requirements for constant rotation of the machine are reduced while keeping the method independent of the bandwidth of the controller. Finally, a MATLAB-based computer program was developed to calculate the features: saturation current in the $d$ -axis and height of hump of the incremental inductance curve. Six different machines, combinations of two stators and three rotors, were used to validate the proposed method through experiments.

中文翻译：

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使用增量电感法离线检测对电机运行温度和转子位置不对准具有鲁棒性的PMSM静态偏心率

在本文中，采用增量电感方法在离线条件下进行静态偏心率检测。此方法使用 $ q $ 轴电压，使其独立于控制器的带宽。在这项工作中，增加了一个新特性，即增量电感曲线的驼峰高度，以及已知特性，即饱和电流。 $ d $ -轴，用于故障检测。结果表明，该新功能与机器工作温度无关，这使该方法相对于机器工作温度具有鲁棒性。还表明，所提出的方法对于转子位置未对准是鲁棒的。设计了用于离线测试的新控制器，该控制器可控制机器的速度和饱和度。使用此控制器，可以降低机器恒定旋转的硬件要求，同时保持方法独立于控制器的带宽。最后，开发了一个基于MATLAB的计算机程序来计算以下特征： $ d $ 轴和增量电感曲线的驼峰高度。通过实验，使用六种不同的机器（两个定子和三个转子的组合）来验证所提出的方法。