RESEARCH OF DYNAMIC CHARACTERISTICS OF INDUCTION MOTORS IN ELECTRIC DRIVES WITH MATCHING TRANSFORMER AND REDUCER

RESEARCH OF DYNAMIC CHARACTERISTICS OF INDUCTION MOTORS IN ELECTRIC DRIVES WITH MATCHING TRANSFORMER AND REDUCER

Introduction. The variety of electric drives, the performance characteristics of which correspond to the set requirements of consumers while ensuring reliable and economical operation for a certain time resource, characterizes the variety of circuit solutions, including using matching transformers a...

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Bibliographic Details
Published in:Electronics and electromechanics no. 2; pp. 14 - 20
Main Authors: Petrushin, V.S, Plotkin, Y.R, Yenoktaiev, R.N, Prokopenko, N.S
Format: Journal Article
Language:English
Published: Kharkiv Department of Electrical Apparatus of National Technical University, Kharkiv Polytechnic Institute 16-04-2019
National Technical University, Ukraine
National Technical University "Kharkiv Polytechnic Institute"
Subjects:
Algorithms
Analysis
average cyclic criteria
Computer simulation
Design and construction
Dynamic characteristics
Electric drives
energy indicators
Indicators
induction motor
Induction motors
load cyclogram
mathematical model
Model matching
Modelling
Power efficiency
Power factor
reduced costs
reducer
transformer
Transformers
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Summary:Introduction. The variety of electric drives, the performance characteristics of which correspond to the set requirements of consumers while ensuring reliable and economical operation for a certain time resource, characterizes the variety of circuit solutions, including using matching transformers and reducers. Problem. The use of matching transformers and reducers units significantly changes the performance characteristics of the electric drive. Most articles are devoted to modeling an electric drive without such elements. It is advisable to consider simulations of electric drives using these elements. Methodology. In the models of matching transformers and reducers, the initial data are used, which determine both the functional properties and the mass and size parameters. The latter provide an opportunity to consider the economic aspects of the electric drive. For the correct calculation of the energy balance of the electric drive, the efficiency of the elements under consideration is taken into account. Results. The use of the developed algorithms for modeling the dynamic modes of two induction motors in electric drives operating on a specific load diagram, with the connection of a matching transformer and reducers, is considered. Dependencies of efficiency and power factor of motors have allowed to determine the medium cyclic energy indicators. The mass- size and cost indicators of variants of electric drives were found, which made it possible to calculate the average cyclic reduced costs of electric drives. Practical value. The possibility of choosing the best variant of the drive based on various indicators, including the minimum amount of energy losses per year, is substantiated. References 17, tables 2, figures 8. Key words: induction motor, load cyclogram, reducer, transformer, mathematical model, average cyclic criteria, energy indicators, reduced costs. [phrase omitted]
ISSN:2074-272X
2309-3404
DOI:10.20998/2074-272X.2019.2.03