An improved three-level shunt active filter (1998)
AuthorsRound, S., Laird, H., Duke, R., Tuck, C.J.show all
A shunt active filter is capable of removing harmonic currents from the supply of commercial and industrial sites. This paper presents a novel method for generating the compensating current signal for an active filter that uses a three-level inverter to provide a fast transient response. It is shown that the active filter must be positioned downstream of the power factor correction capacitors for stable operation. A new compensating current technique, based on sinusoidal subtraction, together with the faster response of the three-level inverter produces a shunt active filter system that has superior performance compared to traditional two level systems.
CitationRound, S., Laird, H., Duke, R. and Tuck, C.J. (1998) An improved three-level shunt active filter. Perth, Australia: Proceedings of the International Conference on Power Electronics, Drives and Energy Systems, 1998. 87--92.
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