Control of thermal modes of traction motors and speed mine electric locomotives

Abstract

Analysis and evaluation of quality indicators and functioning of existing control devices and temperature gauges speed mine electric locomotives, which are used in Electromechanical systems, traction motors DC series excitation in modern mines that are listed in the article. The authors found the main reasons for their low reliability. The method of non-contact control and protection of traction motors from impermissible exceeding of the temperature level in the cells, which requires creating the appropriate temperature sensors was proposed. The issues of speed control mine electric locomotives with the aim of improving health and safety of miners in underground transport were considered. The authors reviewed existing speedometers that are directly or indirectly connected with the rotary elements of the locomotive. The authors proposed a method for the contactless control and protection of traction motors from overheating and sensorless meter speed mine locomotive, the operation of which is based only on the electrical parameters of the electric traction motors.