Monopolar Symmetrical DC–DC Converter for All DC Offshore Wind Farms

All dc offshore wind farms are gaining popularity for long-distance and high-power offshore wind energy conversion. It calls for high-power dc–dc converter with high step-up ratio for interconnecting the medium-voltage dc collection and the high-voltage dc transmission systems. This article proposes a monopolar symmetrical dc–dc converter, which is featured with partial-power processing and presen...