Design methodology of HTS bulk machine for direct-driven wind generation

Min Zhang, Wei Wang, Y. R. Chen, Tim Coombs

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper introduces the design methodology of HTS bulk generator for direct-driven wind turbine. The trap field capability of HTS bulks offer the potential of maintaining similar or even higher magnetic loading level without the iron circuit in the generator. This so-called air-cored design can reduce the weight and increase the power outing per volume of the machine. The detailed design method of the air-cored HTS bulk machine is presented; 3D modeling is applied to consider the total trapped field of bulk arrays; a case study is performed to demonstrate the advantages of air-cored HTS bulk machine over conventional permanent magnet machine. Our results show that the air-cored HTS bulk machine has the potential to maintain the same magnetic loading level as that of the conventional permanent magnet machine. More importantly, it can reduce the total machine weight by 30%.

Original languageEnglish
Article number6104385
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number3
Publication statusPublished - 25 Jun 2012


  • bulk
  • direct-driven
  • HTS
  • wind turbine generator
  • superconducting magnets
  • generators
  • magnetic flux
  • permanent magnet machines
  • HTS bulk machine design methodology


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