Estimation of Parameters of a Three-phase Induction Motor Based on Experimental Data and Modeling Results Based on SINDYc

The aim of the work is to study the dynamic behavior of induction motors and estimate key electromechanical parameters using the SINDYc method in conditions where only the results of no-load and short-circuit tests and a dataset with reference data of various three-phase induction motors of the AIR series are available. To achieve this goal, general physics methods, three-dimensional modeling, processing and visualization of results in the Wolfram Mathematica program were used. The working hypothesis of the research is to investigate the possibilities of using SINDYc to estimate the dynamics of key electromechanical parameters of three-phase induction motors, subject to limited input data and the availability of reference data of various three-phase induction motors of the AIR series. The most important result is the combination of parameters obtained from experiments of no-load and short-circuit of a three-phase asynchronous motor with a dataset of characteristics of various motors of the corresponding series, and unknown quantities are found using the developed mathematical model and the use of calculation relations given in this work. The significance of the research results obtained in the work lies in the fact that based on the developed method, it is possible to analyze the dynamic behavior of asynchronous motors and evaluate the dynamics of key electromechanical parameters of an electric motor using the SINDYc method in conditions when only the results of no-load and short-circuit tests are available. The results of the analysis of the sparsity of the SINDYc model showed that in the studied range of threshold values, the accuracy on the test sample practically does not change, while the number of active terms in the equations changes moderately.