Railway passenger train storage battery charging control apparatus

Abstract

The invention discloses a railway passenger train storage battery charging control apparatus. The apparatus comprises a DC600V / DC110V charger, a storage battery, a PT100 temperature sensor, a DC110V emergency load and temperature compensation. The common component PT100 temperature sensor is placed in a storage battery electrolyte, under a normal energization working state, a real-time temperature sampling result of the electrolyte, obtained by the PT100 temperature sensor forms resistance through a corresponding conversion relation for feeding back to a control unit of DC600V / DC110V charger, through control of the output of the DC600V / DC110V charger, a supplement charging mode and a floating charge mode are formed, charging of the storage battery is safer and more controllable, through cooperation with the control unit of the DC600V / DC110V charger and continuously adjusting the charging voltages and currents of the storage battery, the charging quality of the storage battery is guaranteed, and the service life of the storage battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of railway passenger car battery charging, in particular to a railway passenger car battery charging control device. Background technique [0002] As an important part of the railway passenger car power supply system, the battery plays a particularly critical role in the operation of the passenger car. When the overhead traction line or the DC600V auxiliary power supply fails, the battery needs to provide DC110V lighting and control power for the carriage in an emergency to maintain The normal operation of control systems such as lighting and communication for a period of time provides sufficient time for rescue and troubleshooting. In the normal operation of ordinary passenger cars, the DC600V / DC110V charger provides DC110V power supply for the carriage and also charges the battery. At present, ordinary railway passenger cars mostly use chargers to directly supply power to the battery in order to simplify ...

AI Technical Summary

Problems solved by technology

At present, in order to simplify the line and design of ordinary railway passenger cars, most of them use the charger to directly supply power to the battery, and the power supply voltage cannot be adjusted according to the temperature of the battery electrolyte, and there is also a lack of effective control of the input current when the battery is fully charged.

When the charger outputs overcurrent or overvoltage due to a fault, it will often cause a greater impact on the battery

On the other hand, when the ambient temperature is low or high, the temperature of the battery electrolyte will also change accordingly, and the charging and power supply under constant voltage often affects the charging quality of the battery, which will not only greatly shorten the service life of the battery in the long run, but also affect The impact of emergency power supply will cause the panic of passengers and endanger the driving safety in the state of emergency

Images