A New Control Scheme for Hybrid Active Power Filter

That correcting power factors and eliminating harmonics current of network sides in supply systems is important, and it is always concerned by electric power users and electric power companies. In this paper, an advanced control techniques are advanced to realize the unified compensation of reactive power and harmonics. The new ideal advanced in this paper is to turn harmonics eliminations to harmonics suppressions, and it conduce stronger robustness of the controller to the disturbances caused by variation of load, parameter perturbations and unmodelled dynamics. The new control scheme can simplify the detection of harmonic current greatly. The method of suppression harmonics presented in the paper has strictly mathematical fundaments. In this paper a simulation example is given and the simulation results show the validity and the performance of the unified compensative method