中文摘要：

被用于马达驾驶的一个机械系统监视的传感器更少的为估计一台感应电动机的当前的泛音被介绍的一个方法。方法基于一个适应信号代表并且被建议从一个吵闹的当前的信号提取弱泛音，特别面对添加剂，短暂调整引起的干扰飘动。作为应用，一台感应电动机驾驶的旋转机械的一个转子 unbalance 实验被执行。结果证明方法获得的一个当前的信号的怪癖泛音大小易感知地代表转子 unbalance 条件。颤动分析被用来验证建议方法。

英文摘要：

A method for estimating current harmonics of an induction motor is introduced which is used for sensorless monitoring of a mechanical system driven by the motor. The method is based on an adaptive signal representation and is proposed to extract weak harmonics from a noisy current signal, especially in the presence of additive interference caused by transient modulation waves. As an application, a rotor unbalance experiment of rotating machinery driven by an induction motor is carried out, The result shows that the eccentricity harmonic magnitude of a current signal obtained by the method represents the rotor unbalance conditions sensitively. Vibration analysis is used to validate the proposed method.