Vernier machine with shaped permanent magnet groups

An electric machine comprising:

• a stator comprising
• a stator core;
• and
• a plurality of teeth that extend outward from the stator core, wherein a slot of a plurality of slots is positioned between a pair of the plurality of teeth;
• a stator winding wound about the plurality of teeth to form a number of stator magnetic poles between a set of connectors;
• a rotor comprising
• a rotor core;
• and
• a plurality of walls that form openings in the rotor core that are separated from each other by rotor core;
• and
• a plurality of permanent magnets, wherein a permanent magnet is mounted in each of the openings formed in the rotor core, wherein the plurality of permanent magnets are arranged to form a plurality of groups of permanent magnets that are equally circumferentially distributed around the rotor core, wherein each permanent magnet has an interior polarity and an exterior polarity, wherein the interior polarity has an opposite polarity relative to the exterior polarity, wherein the interior polarity is on a side of each permanent magnet facing other permanent magnets of the group of permanent magnets to which the permanent magnet is associated, wherein the interior polarity is the same for all of the permanent magnets;
• wherein the stator is mounted on a first side of the rotor separated by an air gap between a surface of the rotor core and a tooth of the plurality of teeth;
• wherein the openings further include a first flux barrier formed by a first plurality of walls of each opening on a first side of each permanent magnet and a second flux barrier formed by a second plurality of walls of each opening on a second side of each permanent magnet, wherein the first side is opposite the second side;
• wherein each permanent magnet is arranged to form a rotor pole,
• wherein a number of rotor poles is greater than the number of stator magnetic poles.