Research on end structure losses and its suppression method of high-speed canned induction motor

In the medical and chemical fields, in order to avoid the corrosion of cores and windings, it is necessary to introduce two thin cylindrical corrosion-resistant cans and end support structures into highspeed motors. The result is that there are many kinds of losses and the internal electromagnetic d...

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Bibliographic Details
Published in:IEEE access 2023-01, Vol.11, p.1-1
Main Authors: Gao, Lianlian, Wang, Simin, Li, Jiajia
Format: Article
Language:English
Subjects:
Air gaps
Atmospheric modeling
circulating current losses
Clamps
Coils (windings)
Corrosion resistance
Current loss
Eddy currents
Electromagnetic induction
end magnetic field
Finite element analysis
Finite element method
High speed
High-speed canned induction motor
Induction motors
influencing factors
Material properties
Permanent magnet motors
Temperature distribution
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Summary:In the medical and chemical fields, in order to avoid the corrosion of cores and windings, it is necessary to introduce two thin cylindrical corrosion-resistant cans and end support structures into highspeed motors. The result is that there are many kinds of losses and the internal electromagnetic distribution is complex. The loss formation mechanisms and each sort of current path are challenging to master. In order to solve this problem, a 1.5MW high-speed canned induction motor is calculated using the 3D finite element method. The superposition method is used to separate the circulating current losses and eddy current losses at the end of the motor. The mechanism and circulating current path of the circulating current losses between the structural components are analyzed. The influence of material properties of end structures on circulating current losses and path is discussed. A New circulating current losses suppression method is proposed, and the the beneficial effect of the optimized structure is verified using the temperature field. This study provides a solution for the safe and reliable operation of high-speed canned induction motors.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2023.3277502