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Shipboard Power Generation: Design and Development of a Medium-Voltage dc Generation System

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6 Author(s)
Sulligoi, G. ; Univ. of Trieste, Trieste, Italy ; Tessarolo, A. ; Benucci, V. ; Trapani, A.M.
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This article reports on the design, development, and validation of advanced prototype 2 MVA generation equipment [i.e., naval package (NP)] for a shipboard medium-voltage dc integrated power system (MVDC IPS). The generation equipment is based on an ultrahigh-speed 22,500-r/min 12-phase alternator, which feeds an ac/dc power electronics converter comprising four diode rectifiers and four insulated-gate bipolar transistor (IGBT) choppers. The prototype realization constitutes a follow-up of a previous NP version employing a wound-field 6,300-r/min alternator feeding noncontrolled ac/dc converters. The major technical challenges faced in the design and development of the advanced NP prototype are outlined in this article, taking the previous lower-speed version as a technology reference. The system performance, as determined by the testing campaign, and lessons learned for future studies are addressed.

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Industry Applications Magazine, IEEE  (Volume:19 ,  Issue: 4 )