Control of the traction electric drive of a hybrid shunting locomotive with asynchronous motors in the realization of critical forces

Abstract

The peculiarities of the structure and regulation of an electric traction drive of the TEM9H prototype four-axle hybrid shunting locomotive, which has two-axle bogies and is connected in parallel asynchronous traction motors to one inverter, are considered. Using very dynamic algorithms for a discontinuous control of asynchronous motors in the regulation of the flux linkage of the stator and the electric battery with a large energy level and superconductors allows one to do without free diesel power for traction to adjust the force of traction required by law, applying the new algorithms of the maximum tractive and braking efforts. The pilot locomotive does not include inclined rods or special loaders to balance the vertical load of the axles of the locomotive, whereby the difference in vertical loads between the bogies of the locomotive is about 6 t at the nominal electromagnetic torque of the motor. Promising control algorithms of a traction electric drive of the TEM9H hybrid shunting locomotive with the joint regulation of asynchronous motors, allowing us to compensate for deficiencies in the design of the running gears and to ensure that the potential of adhesion is not less than 90% in a mode with maximum exertion, are analyzed on the basis of computer simulation.