AXIAL-FLUX PERMAMENT MAGNET MACHINE WITH REDUCED CONSUMPTION OF ACTIVE MATERIALS

This article deals with one-sided axial-flux permanent magnet generator with reduced consumption of active materials, particularly permanent magnets. This research compares conventional design of electric machine and design which have the same quantity of pole pairs, but half of them are replaced by steel cores. Comparison was made with help of three-dimensional field model built in ANSYS Maxwell 3D FEM environment. Model validity was proved by experiments. Experiments were carried out using manufactured axial-flux permanent magnet generator. Error is about 10 % that is satisfactory due to the absence of input control of active materials. Proposed design was optimized by parametric optimization in order to eliminate the non-uniformity of induction in the air gap. Also, as conclusions, article gives some recommendations about proposed design of axial-flux permanent magnet generator