Reduced‐order active disturbance rejection control method for PEMFC air intake system based on the estimation of oxygen excess ratio

To solve the oxygen supply problem of proton exchange membrane fuel cell (PEMFC), this paper presents a reduced-order active disturbance rejection control method for PEMFC air intake system based on estimation excess ratio(EOER-RADRC). First, control-oriented third-order nonlinear model was established system. Then, model, extended state observer designed to unmeasured cathode pressure parameters in calculation ratio (OER), and realize real-time OER. Next, aiming at large phase lag (ADRC), ADRC proposed by variable substitution technique. So, reduces observation improves dynamic response performance under good anti-disturbance ability. Finally, simulation hardware-in-the-loop experience results showed that has an excellent effect compared with other methods.