Wind turbine drive systems: a commercial overview
E. de Vries, Rotation Consultancy, The Netherlands
Abstract:
Over three decades modern wind power development is characterised by huge advancements in turbine scaling, drive technology, switching rotor fixed-speed to variable-speed operation, advanced load-control and grid integration. Larger rotors per megawatt aims at much lower cost of energy (CoE) and achieving accelerated cost parity with conventional power plants. Hybrid drive from the late 1990s expanded the choice between high-speed geared and direct drive. Double fed induction generators (DFIGs) were long been predicted to lose out from permanent magnet generators (PMG), while by mid-2010 PMG-based direct drive was predicted ...
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