Technological and economical analysis of salient pole and permanent magnet synchronous machines designed for wind turbines


Gundogdu T. , KOMURGOZ G.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.324, ss.2679-2686, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 324 Konu: 17
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jmmm.2012.03.057
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Sayfa Sayıları: ss.2679-2686

Özet

Chinese export restrictions already reduced the planning reliability for investments in permanent magnet wind turbines. Today the production of permanent magnets consumes the largest proportion of rare earth elements, with 40% of the rare earth-based magnets used for generators and other electrical machines. The cost and availability of NdFeB magnets will likely determine the production rate of permanent magnet generators. The high volatility of rare earth metals makes it very difficult to quote a price. Prices may also vary from supplier to supplier to an extent of up to 50% for the same size, shape and quantity with a minor difference in quality.