Feed‐Forward PID‐Based Cooperative Control Strategy for Air Mass Flow and Pressure in PEMFC Systems

The air supply system is regarded as a critical component in high‐power proton exchange membrane fuel cells (PEMFCs). Precise control of air mass flow rate and pressure is essential for improving system efficiency, durability, and output power stability. In this study, an 86 kW‐grade PEMFC engine was designed, and a feed‐forward PID‐based control strategy was developed, which achieves dynamic air pressure‐flow decoupling of the PEMFC and provides a quicker response to radically varying loads. Experiments were conducted under various load conditions to evaluate the system's performance. The results demonstrated that the proposed strategy achieved a short transient response time and stable tracking of air mass flow and cathode inlet pressure. Additionally, the voltage deviation between the minimum and average values of individual cells was maintained below 0.05 V, indicating excellent uniformity within the stack. This uniformity ensures the long‐term durability and reliability of the fuel cell stack.