Odd-harmonic repetitive control of single phase active power filter

An odd-harmonic repetitive control (ORC) scheme is proposed for shunt active power filter (APF) to eliminate the dominant harmonic currents caused by nonlinear loads and compensate reactive currents. Compared with conventional RC, odd-harmonic RC can achieve high tracking accuracy with faster error convergence rate and smaller data memory size. Simulations results are provided to verify the validity of the proposed control scheme.