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Performance of 3-Phase Neutral Point Clamped Active Front End Multilevel Converter
For medium voltage, high power applications 3-phase neutral point clamped AC-DC multilevel converters are becoming a good choice. In this paper, the performance of a 3-phase neutral point clamped Active Front End three level converter for high power application with simplified control scheme is presented. A complete mathematical model of the control scheme is developed and performance is investigated for balanced load in terms of voltage unbalance across dc link, voltage stress across the switches and THD in the line current.
Keywords
Auxiliary Circuit, Active Front End Converter, DC Link Capacitors, Multilevel Converters.
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