Development of a pole-changing winding for close pole ratio

Development and research of new pole-changing windings with close pole ratios for two-speed motors used in ventilation units. When developing a new pole-changing winding with a pole ratio of 3/4 with 54 stator slots, the method of "Discrete-specified spatial functions" was used; when analy...

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Bibliographic Details
Main Authors: Bobojanov, M. K., Rismukhamedov, D. A., Shamsutdinov, Kh. F., Ganiev, S. T., Peysenov, M. B., Rismukhamedov, S. D.
Format: Conference Proceeding
Language:English
Subjects:
Centrifugal pumps
Coils (windings)
Electromagnetic properties
Fourier analysis
Fourier series
Harmonic analysis
Motors
Series expansion
Stators
Winding
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Summary:Development and research of new pole-changing windings with close pole ratios for two-speed motors used in ventilation units. When developing a new pole-changing winding with a pole ratio of 3/4 with 54 stator slots, the method of "Discrete-specified spatial functions" was used; when analyzing the electromagnetic properties of the resulting winding, the "Graphoanalytical method of Fourier series expansion", "Method of vector and harmonic analysis", "Methods of vector algebra". Using the "Discrete-Specified Spatial Functions" method, a new pole-changing winding has been developed based on the basic "YYY/YYY with additional branches" circuit for a 3/4 pole ratio with 54 stator slots. From a technological point of view, the developed pole-changing winding is a conventional two-layer winding consisting of equal-turn coils of the same pitch evenly distributed along the slots, which allows for the industrial applicability of the proposed winding, since two-speed motors with such a winding can be used on numerous centrifugal pumps and fans, where it is necessary to adjust the rotation speed according to the technological process or for energy saving purposes.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0219624