感应电机传动系统旋转机械故障诊断的无转速计速度估计

In rotating machinery fault diagnosis, the accurate rotational speed is essential for interpretating the repeating fault-induced characteristics. However, installation of extra tachometer can be costly. The widely used induction motor not only drives the powertrain, but also serves as an embedded tachometer via electromagnetic coupling. Available trials on motor-current-based rotational speed esti...