Modeling and semi-physical simulation validation for the hydrogen supply system in proton exchange membrane fuel cell

To meet the demands for precise control and rapid iteration of the hydrogen Loop in Proton Exchange Membrane Fuel Cell (PEMFC) systems, this paper constructs a complete high-precision hydrogen supply system model and verifies it through semi-physical simulation. By developing a hydrogen supply system model that encompasses the composition, flow, and reaction characteristics of the mixed gas, the dynamic behavior of the hydrogen supply system is comprehensively simulated. In addition, a semi-physical simulation platform with real-time data interaction capabilities is established to accurately replicate the actual operating conditions of the fuel cell. The research results show that the established model can effectively reflect the dynamic response characteristics of the hydrogen supply system, providing strong technical support for the design and verification of PEMFC control strategies. This work is of great significance for promoting the engineering application of fuel cells in the field of clean energy.