The FCS3000 Fuel Cell Simulation Software, paired with IT6000C bidirectional DC power supply and IT6000B regenerative power system, accurately simulates the polarization characteristic curve of fuel cell stacks. With a voltage range up to 2250V and a power expansion capability of up to 1152kW, this software offers an efficient platform for hydrogen energy hybrid propulsion system research. It simplifies the testing process by overcoming the challenges of high costs, complex platform construction, and weakened fuel cell performance in real-life experiments..