Delta-connected static var compensator (SVC) based hybrid active power filter (SVC-HAPF) and its control method

In this paper, a new structure and the coordinated control method of a delta connected static var compensator (SVC) based hybrid active power filter (SVC-HAPF) for reactive current, harmonic current and unbalanced current compensation are proposed. The proposed delta-connected SVC-HAPF has the desirable characteristics of wide compensation range with low voltage/current rating requirement in the active inverter part. Simulation results are provided to verify the effectiveness of the proposed structure and control method.