Simulation of three-phase three-wire APF with modified one-cycle control based on space vector

The combination of space vector and one-cycle control method could make the controller structure much simple in three-phase three-wire active power filter (APF) with one-cycle control method. But in traditional methods, 6 sextants are divided at a frequency cycle in the whole range of space vector area. In this paper, the whole 6 sextants are divided in a novel method and section 1&2, section 3&4, section 5&6 can be merged respectively, and so only 3 sextants are required for the realization of space vector. As a result, the implementation of the controller is much simple. Simulation results show that the proposed method has a good compensation effect and validate the method is feasible and effective.