Simulating and Measurements of the Stator Currents and Torque in Induction Motors with Rotor Eccentricity

摘要

A multislice, 2.5 dimensional model was used to calculate the state variables waveforms of the asynchronous machine. In this model, a magnetic field is calculated, in orthogonal to the machine's axis, two-dimensional intersections with the use of the finite element method. The wavelet transform was used to visualize the waveform's harmonic components. The performed analysis showed that the wavelet transform can be successfully used in the analysis of the asynchronous machine's waveforms, as an alternative to the short time Fourier transform.