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http://dx.doi.org/10.5370/KIEE.2014.63.11.1575

A Study on Rotor Eddy Current Loss and Thermal Analysis of PM Synchronous Generator for Wind Turbine  

Choi, Man Soo (R&D Center of Hanyang University)
Chang, Young Hag (Smartgrid Research Institute of Mokpo National University)
Park, Tae Sik (Smartgrid Research Institute of Mokpo National University)
Jeong, Moon Seon (Smartgrid Research Institute of Mokpo National University)
Moon, Chae Joo (Smartgrid Research Institute of Mokpo National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.63, no.11, 2014 , pp. 1575-1581 More about this Journal
Abstract
In this paper, eddy current loss, iron loss and heat transfer of PMSG with 2,000kW capacities were analyzed for wind turbine. The PMSG with 3 split magnet was analyzed using ansoft maxwell commercial program and, generator was tested by Back to Back converter with no load condition at laboratory. Rotor surface temperature was measured by Pt100 sensors for investigating heat transfer from rotor to atmosphere. The simulation results shows 27.4kW eddy current loss in no load condition and 50.2kW eddy current loss in rated load condition with 3 split magnet, and also shows 4.3kW iron loss in no load condition and 7.3kW iron loss rated load condition. The heat transfer coefficient of convection between rotor surface and atmosphere was investigated by $9.6W/m^2{\cdot}K$. Therefore the heat transfer from rotor to atmosphere was about 17kW(54%) and from rotor to air-gap was about 14.6kW(46%) in no load condition. It is identified that the cooling system for stator have to include the 46% of iron loss, and heat dissipation structure of rotor surface have to be suggested and designed for efficiency improvement of generator.
Keywords
Ansoft Maxwell Program; Eddy Current Loss; Iron Loss; PMSG; Heat Transfer; Convection; Conduction; Radiation; Thermal Property; Heat Transfer Coefficient;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 H. Polinder, M. J. Hoeijmakers, "Eddy-Current Losses in the Segmented Surface-Mounted Magnets of a PM Machine", IEEE Proceedings Electric Power Applications, Vol. 146, No. 3, pp. 261-266, May 1999   DOI   ScienceOn
2 Y. Chen, P. Pillay, A. Khan, "PM Wind Generator Topologies", IEEE Transactions on Industry Applications, Vol. 41, No. 6, pp. 1619-1626 November. 2005   DOI   ScienceOn
3 Sang Yub Lee, Hyun Kyo Jung, "Eddy Current Loss Analysis in the Rotor of Surface-Mounted Permanent Magnet Brushless Machine", Proceedings of the Korean Institute of Electrical Engineers, Vol. 20 No. 4, pp. 138-140, April, 2012.
4 Yasuaki Aoyama, Koji Miyata, Ken Ohashi, "Simulation and Experiments on Eddy Current in Nd-Fe-B magnet", IEEE Transaction on Magnetic, Vol. 41, No. 10, pp. 3790-3792, October, 2005.   DOI   ScienceOn
5 Jang Young Choi, Ji Hwan Choi, Seok Myeong Jang, Han Wook Cho, Sung, Ho Lee, "Eddy-Current Loss Analysis in Rotor of Surface-Mounted Permanent Magnet Machines Using Analytical Method" The Transactions of the Korean Institute of Electrical Engineers Vol. 61, No. 8, pp. 1115-1122, September, 2012.   과학기술학회마을   DOI   ScienceOn
6 Hiroaki Toda, Zhenping Xia, Jiabin Wang, " Rotor Eddy-Current Loss in Permanent Magnet Brushless Machines", IEEE Transactions on Magnetics, Vol. 40, No. 4, July, 2004.
7 Nannan Zhao, Z.Q.Zhu, Weiguo Liu, "Rotor Eddy Current Loss Calculation and Thermal Analysis of Permanent Magnet Motor and Generator", IEEE Transactions on Magnetics, Vol. 47, No. 10, October, 2011.