OPTIMIZATION OF ELECTRIC DRIVES OF INDUSTRIAL MECHANISMS
This article discusses optimization problems in the design of an AC electric drive kit with a capacity of up to 1 MW. The need for optimization in the design of the electric drive is due to the technical and economic indicators of the long-term operation of the electric drive. The main problem of op...
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| Published in: | Bulletin of the South Ural State University series "Power Engineering" Vol. 22; no. 4; pp. 53 - 59 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | Get full text |
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| Summary: | This article discusses optimization problems in the design of an AC electric drive kit with a capacity of up to 1 MW. The need for optimization in the design of the electric drive is due to the technical and economic indicators of the long-term operation of the electric drive. The main problem of optimizing the AC electric drive is the complexity of the mathematical description of the frequency converter electric motor. A generalized mathematical model of AC electric drives is presented, in which the nonlinear part of the frequency converter is represented by an aperiodic link with a time constant Ti, a pure delay link with a time constant and a switching function Ψni, which are approximating a semiconductor converter for the transfer function. Such a mathematical model makes it possible to synthesize power circuits and an i-beam converter control system. The optimization of an electromechanical converter using the finite element method is considered. |
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| ISSN: | 1990-8512 2409-1057 |
| DOI: | 10.14529/power220406 |