Modeling flux linkages of an induction motor in dynamic modes. Comparison of the effectiveness of various control algorithms
This article presents the results of studies that substantiated the effectiveness of the dynamic positive feedback on the stator current proposed by the authors in asynchronous frequencycontrolled electric drives. Experimental studies carried out over several years have shown that such a connecti...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2019-12-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2019/6%20(168)/27-33%20%D0%9A%D0%BE%D0%B4%D0%BA%D0%B8%D0%BD%20%D0%92.%20%D0%9B.,%20%D0%90%D0%BD%D0%B8%D0%BA%D0%B8%D0%BD%20%D0%90.%20%D0%A1.,%20%D0%91%D0%B0%D0%BB%D0%B4%D0%B5%D0%BD%D0%BA%D0%BE%D0%B2%20%D0%90.%20%D0%90.%20%D0%B8%20%D0%B4%D1%80..pdf |
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| Summary: | This article presents the results of studies that substantiated
the effectiveness of the dynamic positive feedback on the stator
current proposed by the authors in asynchronous frequencycontrolled electric drives. Experimental studies carried out over
several years have shown that such a connection provides almost
complete compensation for load surges in static modes, as well
as minimal dynamic processes of parrying these loads (minimum
transition time and minimum deviation from the steady-state
value). During one of the discussions of the materials of these
studies, it is suggested that the electromagnetic flux is stabilized
in asynchronous electric drives with such a connection. This
article confirms this hypothesis by the method of mathematical
modeling. Modeling convincingly shows that in a system with
positive feedback on the stator current with dynamic load surge,
rotor flux linkages stabilize much more precisely, than with known
methods of controlling asynchronous motors at all drive speeds.
The article also provides modeling of similar modes for vector and
scalar control. The simulation, thus, confirmed the effectiveness
of the proposed structural correction, while earlier experiments
showed significantly better dynamics and energy of the drive with
such correction (dynamic positive feedback on the stator current). |
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| ISSN: | 1813-8225 2541-7541 |