Abstract
Development and introduction of wind power generation have recently advanced in the R & D of renewable energies. Scaling-up of wind turbines is one of recent R & D trends because of the scale merits. In the wind farms in Europe, a significant number of 5 MW turbines are being installing. Further increase in the turbine size is expected. There are high expectations for a break-thought technology that will enable to develop light weight and compact wind turbine generators with large capacity of more than 10 MW. Applying high temperature superconducting (HTS) technology to the wind turbine generators can provide the light weight and compact design, since the magnetic field can be higher than that of conventional generators and the iron core can be considerably reduced. Therefore, it is considered that the application of the HTS technology to the wind turbine generator is one of the key issues to overcome the technical power limit of conventional wind turbine generators. This article reviews the recent technical trends of large capacity wind turbine generators and related R & D problems. In the article, the recent studies on the electromagnetic design of the HTS wind turbine generators are reviewed. The features of the design of HTS wind turbine generators are summarized.
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