Andrey Sergeevich Kosmodamianskiy
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Vladimir Ivanovich Vorobyev
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Mikhail Yuryevich Kapustin
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Oleg Vasilyevich Izmerov
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The paper considers a problem of creation of new traction drives with brushless electric traction motors (ETM) for passenger locomotives. Analysis of drive designs revealed that the increase of power of induction motors through the increase of rotation frequency leads to the contradiction between requirements for the design reliability, on the one hand, and requirements for technological simplicity, on the other hand. In order to solve the contradiction it is necessary to use ETM designs that have enhanced torque and minimal dimensions in axial direction. It is established that ETM with disk rotor (axial magnetic flux) satisfy such requirements. The authors proposed an aggregate scheme of support-frame traction drives that include ETM with disk rotor, which allows significantly increasing the adaptability to manufacture and repairability of drive at preservation of reliability. As a result, the authors made a conclusion about the reasonability of conducting research and development work on creation of locomotive ETM with axial magnetic flux. The authors have submitted an application for a patent on the proposed design of traction drive.
FEATURES OF MATHEMATICAL MODELING IN THE PROBLEMS OF CURRENT COLLECTION RELIABILITY IN COMMUTATOR-BRUSH ASSEMBLIES OF ELECTRIC TRACTION MOTORS