Journal
TWENTIETH BIENNIAL IEEE CONFERENCE ON ELECTROMAGNETIC FIELD COMPUTATION (IEEE CEFC 2022)
Volume -, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/CEFC55061.2022.9940792
Keywords
coupled problem; mechanical stress; PMa-SynRM; structural analysis; traction motor; railway vehicle
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This paper investigates the coupled problems, including structural analysis, of the permanent magnet assistant-synchronous reluctance motor (PMa-SynRM) for railway traction. The PMa-SynRM is considered as an alternative motor type for high-speed coasting operation with excessive back electromotive force. The variations in mechanical stress are studied based on the properties of the barrier material, including mass density, Young's modulus, and Poisson's ratio, and the effects of stress on electromagnetic performance and rotor iron loss are analyzed at different operating points and speeds. A proper option for PMa-SynRM is proposed as a solution to the coupled problem.
In this paper, coupled problems including structural analysis are studied with respect to permanent magnet assistant-synchronous reluctance motor (PMa-SynRM) for railway traction. The PMa-SynRM is one of alternative motor types considering coasting operation in high speed with back electromotive force induced excessively. The mechanical stress variations are investigated according to material of barrier considering each physical properties including mass density, Young's modulus and Poisson's ratio, and the variation tendency according to properties is presented. The effect of stress in electromagnetic performance and rotor iron loss are also analyzed at each operating point and speed. Finally, the proper option for PMa-SynRM is proposed as a solution of coupled problem.
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