2Sedighy M,Dewan S.B,Dawson F.P.A robust digital current control method for active power fi1ters.Industry Applications.IEEE Transactions on,July-Aug.2000,36(4):1158~1164
3Astrom K J.Direction in intelligent control.Ⅰ FAC International Symposium,ITAC'91(Intelligent Tuning and Adaptive Control),Jan.1991:16~17