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DFT-Based Repetitive Control of a Series Active Filter Integrated With a 12-Pulse Diode Rectifier

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3 Author(s)
Abraham D. le Roux ; Dept. of Electr. & Electron. Eng., Stellenbosch Univ., Stellenbosch, South Africa ; Hendrik du T. Mouton ; Hirofumi Akagi

This paper considers the transient performance and stability of a recurrent discrete Fourier transform (DFT) based control method for a series active filter integrated with a 12-pulse diode rectifier. The control method targets specific harmonics and/or the negative sequence fundamental component of the supply current, and is intended for use with nonsinusoidal/unbalanced supply voltages. The proposed control method is based on DFTs instead of the dq-method, and a simple approach is used to account for small frequency variations found in practical power systems.

Published in:

IEEE Transactions on Power Electronics  (Volume:24 ,  Issue: 6 )