Comparative study of the efficiency and power density of offshore WECS with three-phase AC-link

In this paper three converter topologies are compared for the AC-AC conversion stage of an offshore wind turbine with permanent magnet synchronous generator. The WECS (Wind Energy Conversion System) is based on four stages: an input filter, an AC-AC converter, a three-phase high-frequency transformer and a full-bridge diode rectifier. The conventional back… CONTINUE READING