Direct-current charging pile power distribution system and method

The invention relates to the technical field of new energy charging piles, and discloses a direct-current charging pile power distribution system and method. The system comprises an alternating-current input, an alternating-current circuit breaker electrically connected to the downstream of the alternating-current input, and an alternating-current lightning protection device is electrically connected to the downstream of the alternating-current circuit breaker. According to the direct-current charging pile power distribution system and method, through arrangement of a main control CPU unit, asystem power supply unit, a 485 communication unit, a CAN communication unit, an alternating-current contactor control unit, a relay control unit, an emergency control unit and a heat dissipation control unit, according to the charging requirement of a new energy automobile and by combining the self-generating characteristic of a charging pile, charging is conducted while the requirements of various new energy automobiles