H-infinity control design methodology for active filtering problems

This paper shows the efficiency of the H-infinity control design methodology applied to the active power filtering problem. First, a continuous time H-infinity controller is designed, which achieves all the performances and robustness properties required. An effective 18th order discrete regulator is then derived from the continuous one in an original way. Finally, the operational aspects are considered and solved by using a conditionning technique. Experimental tests prove the validity of our approach.