This paper introduces a novel three-layer subharmonic vernier machine (3L-SHVM) to address the limitations of existing dual-layer designs in high-torque applications. The proposed machine incorporates three distinct three-phase winding sets, each powered by independent current source inverters (CSIs), enabling precise control of harmonic magnetomotive force (MMF) components. Key design features include an optimized slot-pole combination, a pole ratio of 11, and an advanced three-layer winding configuration to enhance performance. Finite element analysis (FEA) using Ansys software validates the performance of the 3L-SHVM, demonstrating improved average torque and significantly reduced torque ripple. These results underscore the machine's potential for high-precision and efficiency applications, such as in-wheel motors and other electrification systems. The 3L-SHVM offers a significant step forward in vernier machine technology, providing a cost-effective, high-performance solution for transportation and power generation sectors.
