Yuan X, Merk W H, et al.Stationary-frame generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern under unbalanced and distorted operating conditions[J].IEEE Trans on Ind App,2002,38(2):523-532.
Wu T F,Nien H S,Hsieh H M,et al.PV power injection and active power filtering with amplitude-clamping and amplitude-scaling algorithms[J].IEEE Transactions on Industry Applications,2007,43(3):731-741.