Proactive Control of Rolling Stock with Traction Asynchronous Electric Motors

Method for Determining the Degree of Damage to the Stator Windings of an Induction Electric Motor with an Asymmetric Power System

“…When determining the displacements of the phase shift angles of phase currents according to the time diagrams ∆ϕ Ism in Expression (12), the corresponding values of the angles, which were obtained from the time diagrams, were used. The calculation results are listed in Table 2.…”

“…The amplitudes of the stator phase currents were determined by (11). The displacements of the phase shift angles of the phase currents were determined by (12).…”

“…In this case, the ellipse tilt angle was determined by (17), the phase shift angles of the stator currents from Expressions (8), the amplitudes of the stator phase currents by Formula (11), and the displacement of the phase shift angles of phase currents by (12). The calculation results are listed in Table 4.…”

“…The calculation results are listed in Table 4. Formula (11), and the displacement of the phase shift angles of phase currents by (12). The calculation results are listed in Table 4.…”

“…Squirrel-cage induction motors are widely used in various industries and transport. They are used in technological lines of heavy engineering [9,10], as traction motors on railway rolling stock [11][12][13], as auxiliary equipment on railway rolling stock [14,15] and in water transport [16,17]. Thus, the quality and accuracy of the execution of technological processes depend on the technical condition of induction motors.…”