Locomotive electrical system and battery pack charging and discharging method thereof

Abstract

The invention discloses a locomotive electrical system and relates to the technical field of track shunting electrical systems used for industrial and mining enterprises and particularly belongs to alocomotive electrical system and a battery pack charging and discharging method thereof. The locomotive electrical system and the battery pack charging and discharging method thereof are characterizedin that the locomotive electrical system comprises a vehicle control unit VCU, a battery unit, a power distribution unit, a driver, a motor, an inverse power source, an inverter and a direct-currentvoltage drop unit. The vehicle control unit VCU is in communication connection with the battery unit, the driver, the inverse power source, the inverter and the direct-current voltage drop unit in a bus manner. The battery unit comprises a battery pack and a battery management system BMS, and the battery management system BMS detects the state parameters of the battery pack and feeds back the state parameters to the vehicle control unit VCU. The input end of the power distribution unit is connected with the battery pack, and the output end of the power distribution unit is connected with the driver, the inverse power source, the inverter and the direct-current voltage drop unit. Electric energy is effectively saved, the utilization rate is increased, and the effects of energy conservationand environment friendliness are achieved.

Description

technical field [0001] The invention relates to the technical field of electrical systems for track shunting used by industrial and mining enterprises, in particular to a charging and discharging method for a locomotive electrical system and a battery pack thereof. Background technique [0002] With the demand for energy conservation and environmental protection and the implementation of the conversion of old and new kinetic energy, the existing technology of new energy storage electric rail locomotives has been widely recognized by industrial and mining enterprises, especially major iron and steel plants. New energy storage electric rail locomotives effectively solve the problem. In spite of the disadvantages of internal combustion engine shunting noise, high failure rate, and serious pollution, the new energy storage electric rail locomotive has low failure rate, no fuel, and no exhaust emissions. It conforms to the national energy-saving and environmental protection indust...

AI Technical Summary

Problems solved by technology

[0004] The electrical system of traditional electric locomotives has a complex structure, and most of them use catenary power supply, which requires a special electrified railway to operate. However, the existing hybrid electric locomotives require internal combustion transmission systems, fuel systems, cooling systems, and electrical systems. This locomotive The structure is complicated, the maintenance time is long, the maintenance cost is high, and there is serious environmental pollution when fueling, the fuel cost is high, and it does not meet the requirements of energy-saving and environmental protection industrialization

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