Features of Determining Criteria of Similarity for Frequency of Electric Drives

Abstract

The article describes the application of the similarity theory for a frequency-driven elec-tric drive that allows the results of an exploratory model to be transferred to an object of similarity. At large industrial enterprises a large number of such electric drives of various designations are used, the experimental study of which is impossible to assess the impact on the technological pro-cess or the research is difficult due to the fulfilment of the technological task. For this it is neces-sary, on the basis of the π-theorem, to compile similarity criteria for power drives of different fre-quency, which are used in research and applied in an industrial enterprise.