COMPARATIVE ANALYSIS OF ENERGY CHARACTERISTICS OF DIFFERENT TYPES OF SYNCHRONOUS TRACTION ELECTRIC MOTORS

Abstract

Using the methods of mathematical modeling, a comparative analysis of the electromagnetic torque and power charac-teristics of three versions of traction synchronous motors was carried out: a synchronous jet engine, a hybrid synchro-nous jet engine with additional permanent magnets on the rotor, and a synchronous engine with permanent magnets installed on the rotor surface. The comparative analysis was carried out under the conditions of the same dimensions of the engines, the nominal values of the stator winding current and the speed of rotation of the rotor. It was established that under the given conditions, the synchronous motor with permanent magnets on the surface develops the greatest power and torque, but it also has the largest torque pulsations. Design measures to reduce torque pulsations at the same time led to a noticeable decrease in the nominal power of engines. The obtained results can be used when choos-ing an appropriate type of synchronous traction motor, taking into account the given compromise requirements for engine characteristics and vehicle operating conditions. References 12, figures 5, table 2.