Comparative Study of Harmonic Compensation Performance According to Series Hybrid Active Power Filter Structure and Current Conversion Formula

This paper compares and validates the effectiveness of different control strategies for the inverter structure within a serial-type hybrid active power filter in compensating for harmonics efficiently, particularly in locations predominantly utilizing loads such as residential buildings. While hybrid active power filters are utilized to compensate for such harmonics, ineffective utilization of the inverter structure and control strategies within it may result in ineffective compensation for harmonics in loads. As a result, it was observed that simultaneous application of the 3-leg 4-wire inverter structure and DQO transformation effectively attenuated harmonic currents of all orders, including multiples of 3, demonstrating efficient compensation for harmonics.