This article discusses the disadvantages of electric motor control systems for the running gear of mine self-propelled cars of the 5vs-15M brand used for transporting ore to conveyor transport at the Tyubegatan potash Deposit and analyzes the use of a control system with a frequency Converter. Based on the results of the analysis of the recommended possible options for the electric drive, it is advisable to conduct further studies of the electric drive based on an asynchronous motor and a power circuit of a frequency converter.

The paper presents a new double layer three phase 3/6 pole-changing winding, with 72 slots and 6 terminals with “Y/YY with additional branches” ? “Y-Δ/YY” switching circuit. Using the discretely specified spatial function method, a two-speed asynchronous electric motor with a pole-switched winding was designed for self-propelled mine wagons, which were tested in static and dynamic modes of operation. The application areas of two-speed asynchronous motors with pole-switched windings are given. Currently, dynamic modes have not been investigated in the used two-speed engines. As the object of the study, a two-speed asynchronous motor of the AVTM - 6/12 brand of the self-propelled mine wagons drive was adopted in operating modes with no load on the shaft and when starting with a load of 500 Nm and switching to a second speed.