| Title |
Design and Analysis of Direct-Coupled, Small-Scaled Permanent Magnet Generator for Wind Power Application |
| Authors |
IL-Jung Kim ; Jang-Young Choi |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2014.28.5.039 |
| Keywords |
Wind Power ; Permanent Magnet Generator(PMG) ; Magnet Thickness ; Pole Pitch/Arc Ratio |
| Abstract |
This paper deals with design of a direct-coupled, small-scaled permanent magnet generator (PMG) for wind power application. First, this paper determines rated power and speed of the PMG from measured characteristics of wind turbines. Second, we derive analytical solutions for the open-circuit field in order to determine optimum magnet thickness and pole pitch/arc ratio. Third, on the basis of open circuit field solutions, stator magnetic circuit including slot opening, teeth width and yoke thickness is designed. And then, a diameter of stator coil which agree with a required current density is calculated, and its turns are determined from the area of slot considering winding packing factor. Finally, finite element (FE) method is employed in analyzing the details of the designed PMG and, test results such as back-emf measurements are given to confirm the design. |