An expression for the no-load flux linkage in permanent-magnet (PM) machines is derived. From this expression, a method is proposed to increase the no-load flux linkage generated in a stator winding per volume of PM material. The method is suitable for machines with short pole pitch and is applied to a transverse-flux machine with single-sided surface-mounted PM. The result is an increase of 37 of the no-load flux linkage per volume of PM, compared with the case of rectangular PM covering 100 of the pole pitch. An increase of 15 is also obtained, if compared with the common practice of using PM covering 80 of the pole pitch.
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