Application of linear asynchronous motors for high-speed ground transport
Akhatov S.T. Solonenko V.G. Makhmetova N.M. Kosenko S.A. Ivanovtseva N.V. Malik A.A.
2021National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2021#2Issue 44631 - 36 pp.
Magnetic suspension in high-speed ground transport systems is an alternative to the rail wheel. The successful solution to the development of high-speed ground transport is largely determined by the creation of operationally efficient linear motors, the main task of which is to convert electrical energy into mechanical energy and create tractive force to ensure the movement of the crew according to a given program in the range of operating speeds. The article investigates linear asynchronous motors with longitudinal closure of magnetic flux of single-ended design. As a result of investigation of physical processes in linear motors caused by edge problems it was found that the cause of the transverse edge effect is the finite width dimensions of the reactive bus, the change of which causes closure of eddy currents within the active area of inductor, leads to weakening of magnetic field in the central zone and to reduction of tractive force. The discrepancy between the calculated and experimental indicators of physical processes in linear asynchronous motors due to significant idealization of mathematical models led to the development of a three-dimensional theory, brought to the calculation programs. The developed calculation program of electromechanical characteristics of linear induction motors with inductor and reactive bus layout, as well as their geometrical and physical parameters allows to determine the necessary integral motor characteristics in the form of a levitation function.
Edge effects , High-speed ground transport , Inductor , Linear induction motor , Reactive bus , Traction drive
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Kazakh Academy of Transport and Communications named after M. Tynyshpaev, Almaty, Kazakhstan
Siberian State University of Railway Transport, Novosibirsk, Russian Federation
Kazakh Academy of Transport and Communications named after M. Tynyshpaev
Siberian State University of Railway Transport
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