Reference signals generation for active power filter compensation using mathematical morphology

In this paper the mathematical morphology theory is applied to implement the instantaneous power p-q control strategy of a shunt active power filter. A computer-aided modeling of the active power filter operation using the MATLAB/Simulink environment is presented in details. The simulation results indicate that the implemented control strategy is able to completely compensate the harmonic components of the supply current well below 5% limits, required in the IEEE-519 standard, and reactive power required by the non-linear loads in the power system.