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Influence of the electrical steel grade on the performance of the direct-drive permanent magnet machine for wind energy generation

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Abstract
The performance of a variable speed, direct-drive synchronous generator wind turbine concept is compared for two grades of electric steel applied for the generator stator core lamination. A ring type, radial flux permanent magnet synchronous generator (PMSG) is modelled. For a fixed mechanical power input, the geometry of the PMSG is optimized for each material to maximize the annual energy yield. The energy yield is calculated based on the power curve of the generator and the probability density function of the wind speed. This function is approximated by the Weibull distribution for a site with average wind speed of 7 m/s. The annual efficiency differs more than 2% between the two optimized generators, which use different grades of material.
Keywords
Weibull distribution, synchronous generators, wind power, stators, wind turbines, laminations, permanent magnet generators, steel

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Citation

Please use this url to cite or link to this publication:

Chicago
Kowal, Damian, Luc Dupré, Peter Sergeant, Lode Vandenbossche, and Marc De Wulf. 2010. “Influence of the Electrical Steel Grade on the Performance of the Direct-drive Permanent Magnet Machine for Wind Energy Generation.” In Electromagnetic Field Computation, 14th Biennial IEEE Conference, Proceedings. Piscataway, NJ, USA: IEEE.
APA
Kowal, D., Dupré, L., Sergeant, P., Vandenbossche, L., & De Wulf, M. (2010). Influence of the electrical steel grade on the performance of the direct-drive permanent magnet machine for wind energy generation. Electromagnetic Field Computation, 14th Biennial IEEE Conference, Proceedings. Presented at the 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2010), Piscataway, NJ, USA: IEEE.
Vancouver
1.
Kowal D, Dupré L, Sergeant P, Vandenbossche L, De Wulf M. Influence of the electrical steel grade on the performance of the direct-drive permanent magnet machine for wind energy generation. Electromagnetic Field Computation, 14th Biennial IEEE Conference, Proceedings. Piscataway, NJ, USA: IEEE; 2010.
MLA
Kowal, Damian et al. “Influence of the Electrical Steel Grade on the Performance of the Direct-drive Permanent Magnet Machine for Wind Energy Generation.” Electromagnetic Field Computation, 14th Biennial IEEE Conference, Proceedings. Piscataway, NJ, USA: IEEE, 2010. Print.
@inproceedings{1024583,
  abstract     = {The performance of a variable speed, direct-drive synchronous generator wind turbine concept is compared for two grades of electric steel applied for the generator stator core lamination. A ring type, radial flux permanent magnet synchronous generator (PMSG) is modelled. For a fixed mechanical power input, the geometry of the PMSG is optimized for each material to maximize the annual energy yield. The energy yield is calculated based on the power curve of the generator and the probability density function of the wind speed. This function is approximated by the Weibull distribution for a site with average wind speed of 7 m/s. The annual efficiency differs more than 2\% between the two optimized generators, which use different grades of material.},
  author       = {Kowal, Damian and Dupr{\'e}, Luc and Sergeant, Peter and Vandenbossche, Lode and De Wulf, Marc},
  booktitle    = {Electromagnetic Field Computation, 14th Biennial IEEE Conference, Proceedings},
  isbn         = {9781424470594},
  language     = {eng},
  location     = {Chicago, IL, USA},
  pages        = {1},
  publisher    = {IEEE},
  title        = {Influence of the electrical steel grade on the performance of the direct-drive permanent magnet machine for wind energy generation},
  url          = {http://dx.doi.org/10.1109/CEFC.2010.5481605},
  year         = {2010},
}

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