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首页> 外文期刊>Journal of power electronics >Rotor Fault Detection System For The Inverter Driven Induction Motor Using Current Signals
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Rotor Fault Detection System For The Inverter Driven Induction Motor Using Current Signals

机译：电流信号的变频器驱动感应电动机转子故障检测系统

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摘要

The induction motor rotor fault diagnosis system using current signals, which are measured using an axis-transformation method, is presented in this paper. In inverter-fed motor drives, unlike line-driven motor drives, the stator currents are rich in harmonics; therefore fault diagnosis using stator current is not trivial. The current signals for rotor fault diagnosis need precise and high resolution information, which means the diagnosis system demands additional hardware such as a low pass filter, high resolution ADC, and encoder, etc. The proposed axis-transformation method with encoder and without encoder is expected to contribute to a low cost fault diagnosis system in inverter-fed motor drives without the need for any additional hardware. In order to confirm the validity of the developed algorithms, various experiments for rotor faults are tested and the line current spectrum of each faulty situation using Park transformation is compared with the results obtained from fast Fourier transforms.
机译：本文提出了一种使用电流信号的感应电动机转子故障诊断系统，该系统通过轴变换方法进行测量。在逆变器供电的电机驱动器中，与线性驱动的电机驱动器不同，定子电流中富含谐波；因此，使用定子电流进行故障诊断并非易事。用于转子故障诊断的电流信号需要精确和高分辨率的信息，这意味着诊断系统需要附加的硬件，例如低通滤波器，高分辨率ADC和编码器等。提出的带编码器和不带编码器的轴变换方法是有望在无需任何其他硬件的情况下为逆变器供电的电机驱动器中的低成本故障诊断系统做出贡献。为了确认所开发算法的有效性，测试了转子故障的各种实验，并将使用Park变换的每种故障情况的线电流谱与快速傅里叶变换的结果进行了比较。

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