A novel control strategy of parallel hybrid active power filter

This paper proposes a novel control strategy for parallel hybrid active power filter (PHAPF) which adopted generalized integrator method to separate specific harmonic. As a result, the active and passive part of PHAPF only compensates their own part of harmonic, avoiding circumfluence between passive part and active part. The passive part only compensates the lower-order harmonic, while the active part compensates the higher-order. Thus, the compensation capacity of active part is greatly reduced, and the probable resonance between passive part and power system would be avoided. Contradistinctive experiments are given to verify the novel control strategy could achieve perfect effect.