Abstract：The efficiency of flywheel electric machine reduced with the increase of speed because of high eddy loss of winding conductors which are completly exposed in the changing magnetic field. This paper deduces eddy loss model of circular-shaped conductor, and then established the calculating model of winding eddy loss. The loss model includes two parts: one is caused by radial field component, the other is caused by tangential field component. Both of the two field components can be obtained by resolving magnetostatic field of electric machine, or FEA (finite element analysis). According to the field component obtained by FEA, the winding eddy loss of a prototype is forecasted quickly by using the proposed model. Finally, a flywheel electric machine prototype is used to experiment validity, and the experimental results demonstrate the validity of relative theory.
汤平华, 漆亚梅, 黄国辉, 李铁才. 定子无铁心飞轮电机绕组涡流损耗分析[J]. 电工技术学报, 2010, 25(3): 27-32.
Tang Pinghua, Qi Yamei, Huang Guohui, Li Tiecai. Eddy Current Loss Analysis of Ironless Flywheel Electric Machine’s Winding. Transactions of China Electrotechnical Society, 2010, 25(3): 27-32.
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2010, Vol. 25 
