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Digital control of an integrated series active filter and diode rectifier with voltage regulation

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3 Author(s)
Le Roux, A.D. ; Dept. of Electr. & Electron. Eng., Univ. of Stellenbosch, Matieland, South Africa ; Mouton, Hd.T. ; Akagi, H.

The integration of a series active filter with a 12-pulse diode rectifier can provide a cost-effective and efficient means of supply current harmonic-free AC/DC conversion. Controlling the series active filter as a frequency-selective impedance requires low delays and is not well suited for digital control. This paper suggests a current-mode control strategy to allow full digital control of the active filter. The suggested current-mode control method for supply current balancing and voltage regulation is verified experimentally.

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Industry Applications, IEEE Transactions on  (Volume:39 ,  Issue: 6 )