Abstract
In this paper, the performances of a surface-mounted permanent magnet synchronous machine (PMSM) and a wound field synchronous machine (WFSM) are compared to highlight their respective advantages and characteristics.
This study focuses on two 1kW synchronous machines with a 9/10 structure (9 stator poles and 10 rotor poles) with identical stator geometries, the first one excited by permanent magnets and the second excited by an electromagnetic field. The paper includes detailed descriptions of the electrical machines and their parameters. The analysis was performed by using the ANSYS Motor-CAD software to evaluate the performance of the two machines. Simulation results using Finite Element Analysis (FEA) are analyzed, and conclusions are presented. Key performance characteristics, such as output power, developed torque, cogging torque, and efficiency, were compared. The study indicated that PMSM with permanent magnets on the rotor surface (SPM) offers higher performance but at a higher manufacturing cost, while the WFSM presents a more cost-effective solution with slightly lower overall performance.