Magnet structure with improved performance, inverter, and associated method

A magnet structure comprising a number N of sets of permanent magnets installed periodically along a direction S with a spatial period λu wherein N is greater than or equal to four,

• each set comprising:
• a magnet of a first beam;
• a magnet of a second beam;
• a magnet of a third beam;
• and
• a magnet of a fourth beam;
• the magnets of each beam being arranged in succession in the direction S,
• the first beam and the second beam being arranged in succession in a direction Z perpendicular to the direction S;
• the fourth beam and the third beam being arranged in succession in the direction Z;
• the third beam and the second beam being arranged in succession in a direction X perpendicular to the directions S and Z;
• the fourth beam and the first beam being arranged in succession in the direction X;
• and
• for at least four successive sets of magnets of a spatial period λu, the magnetization vector of each magnet of each beam has a non-zero component along each of the directions X, S and Z.