A new control strategy for neutral-point-clamped active rectifiers
Marchesoni, M.; Segarich, P.; Soressi, E.
Industrial Electronics, IEEE Transactions on
Volume 52, Issue 2, April 2005 Page(s): 462 - 470
Digital Object Identifier   10.1109/TIE.2005.843909
Summary: A new control strategy has been developed for interfacing a neutral-point-clamped active rectifier with the mains. In particular, a method, based on the modulation of the input currents amplitudes, is proposed to compensate the dc-link capacitors voltages fluctuations. The proposed strategy gives good results in all the operating conditions, but it appears to be very useful especially in no-load or low-load operations, where other methods fail. Analytical, simulation, and experimental results, derived from a reduced-scale prototype, are presented and confirm the validity of the proposed approach.

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