Title:Comparison of Optimized Fault-Tolerant Modular Stator Machines with U-shape and H-shape Core StructureAuthor(s):Eddi Perez, Werner Jara, Carlos Madariaga, Juan A. Tapia, Gerd Bramerdorfer, Javier Riedemann, Ilya Petrov, Juha J. PyrhönenAbstract:This paper presents a comparison of optimized tooth-coil-winding modular permanent-magnet synchronous machines (TCW-MPMSMs) with H-shape and U-shape stator segments for fault-tolerance applications. Four optimization objectives are studied by means of a Particle-Swarm-Optimization (PSO) based routine: maximum rated torque, minimum torque ripple, maximum efficiency, and minimum mutual inductance. Two 22-pole and 24-slot TCW-MPMSMs with H-shape and Ushape stator cores were evaluated and optimized aiming to optimize each objective. From the results, it was found that Ushape machines are suitable for high-torque and low-mutualinductance requirements, crucial in fault-tolerant applications, whilst H-shape machines offer low ripple torque and slightly lower performance indices for fault-tolerance applications.Booktitle:IEEE ECCE2021, Energy Conversion Congress and Expo, Vancouver, CanadaPage Reference:6 page(s)Publishing:10/2021