A novel control method for series hybrid active power filter working under unbalanced supply conditions
A novel control algorithm for Series Hybrid Active Power Filter (SHAPF) is proposed. Proposed formula simultaneously compensates source voltage unbalances and source current harmonics. Proposed formula is simple, computationally less intensive and derived in three-phase co-ordinate system. Owing to the quick estimation of reference the SHAPF is able to inject compensating voltage quickly. The hardware implementation of proposed control algorithm is developed using new ARM Cortex M4 Microcontroller.
active power filter generalised instantaneous power theory passive filter power multi-vector reference voltage