Joint debugging test system and method based on fuel cell power device

The invention provides a joint debugging test system and method based on a fuel cell power device. The joint debugging test system comprises a high-pressure hydrogen storage device, a hydrogen flow meter, a fuel cell, a DCDC module, a distribution box, a power cell, an adjustable electronic load, a vehicle control unit and an upper computer. The high-pressure hydrogen storage device is connected with the fuel cell through a hydrogen pipeline; a hydrogen flow meter is arranged on the hydrogen pipeline; the electric energy output end of the fuel cell is connected to the distribution box through the DCDC module; the vehicle control unit obtains hydrogen flow information on the hydrogen pipeline; the fuel cell and the power cell are controlled to output electric energy according to a set test program to obtain an operation state; and the adjustable electronic load is controlled to operate, and the operation state is obtained and uploaded to the upper computer. The economical efficiency, the dynamic property, the