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The improvement of efficiency, total harmonic distortion (THD), and cogging torque in outer rotor permanent magnet synchronous generator (PMSG) is the main concern in this paper. The paper focuses on handling the parameters of design, i.e. the geometry of the stator, the polar arc percentage, the air gap, the skew angle in rotor poles, the pole length, and the core steel class. The modification of geometric parameters related to the stator’s inductance is analyzed. Seventy-six cases are simulated, and results provide useful information for designing this type of machines. The study is carried out in a 5 kW PMSG.

Modification of Geometric Parameters in Outer Rotor Permanent Magnet Generators to Improve THD, Efficiency, and Cogging Torque