Mehdi Feizi - Kharazmi College of Malayer

This paper presents a H-in nity (H controllers for applications to output of fuel cell powered - uninterruptable power system (UPS). This work considers voltage Stabilization and THD reduction of output in UPS for comparison. It is found that the H control have better response compare to PID controller. Thus, H control may be esp- ecially useful in control of output fuel cells , or other applications that require UPS si- mulation results are provided to show the feasibility of the proposed system and the ef- fectiveness of the control methods

H-in nity controller, PID controller, robust control, uninterruptible-power-supply