1. Generation of electricity from the wind;Warne;IEE Proc,1977
2. Wind energy conversion — an introduction;Musgrove;IEE Proc A,1983
3. Large wind driven synchronous generators;Wall;Engineering,1943
4. Field oriented control of variable speed alternator connected to the constant frequency line;Leonhard,1979
5. Directly-driven permanent magnet excited synchronous generator for variable speed operation;Weh,1988