Non-energy-storage type charging system, control method and engineering machinery

The invention provides a non-energy-storage type charging system, a control method and engineering machinery, and relates to the technical field of engineering machinery, the non-energy-storage type charging system comprises a power supply system and a mobile power supply, the power supply system comprises an all-in-one controller, an AC circuit breaker, an AC charging socket and a DC charging socket, the alternating-current circuit breaker and the direct-current charging socket are respectively and electrically connected with the all-in-one controller, the all-in-one controller is used for inverting current, converting direct current into alternating current and outputting the alternating current to vehicle-mounted electric equipment, the alternating-current circuit breaker is electrically connected with the alternating-current charging socket, and the direct-current charging socket is used for being connected with a mobile power supply. Therefore, the power distribution cabinet can be used for power supply