Patent 7982351 was granted and assigned to Magnomatics Limited on July, 2011 by the United States Patent and Trademark Office.
Embodiments provide an electrical machine bearing first and second pluralities of permanent magnets having different number of pole pairs, a plurality of pole-pieces that enable the magnetic interaction between the pluralities of permanent magnets, and winding that couples with the first/fundamental harmonic of the first plurality of permanent magnets to enable electromechanical energy conversion.