Charger control system, control method and train

The invention provides a charger control system and method and a train. The charger control system comprises a main control system, multiple chargers, an energy storage unit and a train power supply bus, and the multiple chargers are all connected to the train power supply bus; wherein at least part of the chargers are connected to the energy storage units respectively, collect the voltage of the connected energy storage units, charge the energy storage units according to a set charging curve, and supply power to a train power supply bus at the same time; the main control system is respectively communicated with the plurality of chargers, and the main control system controls the chargers according to the voltages of the batteries, so that the output voltage of the single charger is in a set range under different conditions. According to the invention, the problems of overcurrent and shutdown caused by overload of the charger with high output voltage are avoided, so that the problem of large power failure of t