Battery-powered shunting locomotive

Abstract

The utility model relates to the field of railway transport, in particular to traction rolling stock, and can be used in the design, modernization and operation of shunting locomotives with electric traction drive, equipped with battery power sources. A shunting locomotive with traction battery power is proposed, comprising traction batteries, a pantograph, a charging transformer, an energy converter, traction motors, an auxiliary battery, and a control system. The traction batteries are electrically connected to the energy converter, which regulates electrical energy parameters and supplies it to the traction motors. The current collector is connected to a charging transformer and is designed to be connected to an external AC or DC contact network for charging the traction batteries. The charging transformer provides galvanic isolation, voltage stabilization, and conversion of electrical energy parameters during traction battery charging. The auxiliary battery supplies power to the locomotive's auxiliary systems, while the control system monitors battery charge, distributes electrical energy, and protects equipment. The operating principle is to accumulate electrical energy in the traction batteries when connected to the external overhead contact system and to use the stored energy to power the traction motors when the locomotive is in motion. During regenerative braking, the traction motors operate in generator mode, and the generated electrical energy is stored in the traction batteries. The energy converter provides the necessary conversion of electrical energy parameters depending on the locomotive's operating mode. Auxiliary systems are powered by a separate battery, increasing their operational reliability. The technical result achieved through the implementation of the utility model consists of increasing the energy efficiency of the shunting locomotive, reducing operating costs, increasing the reliability of the equipment, providing the ability to charge traction batteries from the AC and DC contact network, utilizing regenerative braking energy, and improving environmental performance through the use of a battery-powered traction drive. The proposed technical solution is characterized by its simple design, the possibility of integration into existing rolling stock, and can be effectively used in railway stations, industrial enterprises, and other facilities with developed railway infrastructure.