Abstract

In this paper, four models of AFPMG (Axial Flux Permanent Magnet Generator) are analyzed and compared to get the best model correspond to highest magnetic flux density that produced by those generators. Before analyzing performance of those models, leakage flux are modeled and analyzed by using magnetic circuit approach to defining the optimal distance of magnet to the magnet on the rotor disk. Therefore, optimal size of AFPMG are determined according to the optimal distance from magnet to magnet. The analysis results show that AFPMG with ferrite core and ferrite ring has the highest value of magnetic flux density. By the addition of ferrite material in AFPMG, it can increase the value of magnetic flux density. On the other hand, it is also can decrease leakage flux value. Analytical results then will be validated using finite-element method (FEM).

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