Effect of voltage sags on adjustable speed drives - A critical evaluation and an approach to improve its performance
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abstract
The effect of voltage sag on adjustable speed drives (ASDs) was evaluated analytically and experimentally. ASD dc-link voltage and input rms current variations were computed as a function of line impedance and dc-link inductance in per-unit. Based on the results, an integrated boost converter (IBC) was proposed to improve the ASD performance during a sag event.
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APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)