Active disturbance rejection control for fuel processing system of fuel cells

Linear active disturbance rejection control (LADRC) is used to control the fuel processing system (FPS) of fuel cells. Two LADRC schemes (with and without decoupler) are studied. LADRCs with decouplers are designed at three operating points. Step responses and Monte Carlo experiments show that good dynamic performance and strong robustness can be achieved. The result is further verified with bode plots of the closed-loop sys tems. Inspired by this result, LADRCs without decouplers are analyzed. Simulations show that a single decentralized ADRC can be enough to control three different models with satisfactory dynamic performance and good decoupling performance.