Fault-Tolerant Modular Stator Concentrated Winding Permanent Magnet Machine

Fault-Tolerant Modular Stator Concentrated Winding Permanent Magnet Machine

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This paper studies a modular permanent magnet synchronous machine (MPMSM) converted from a traditional single-core 24-slot 20-pole tooth-coil winding permanent magnet synchronous machine (TCW PMSM).The performance of the TCW PMSM is compared with the performance of the MPMSM (rearranged from this TCW PMSM) by the Soccer - Clothing Junior Bottoms - Pants finite element method (FEM).It is found that if an electrical machine with a modular structure is designed, the efficiency of the MPMSM may be degraded compared with the conventional structure, especially, if a solid rotor yoke is used.

However, the advantages of the proposed MPMSM are related to an option to scale up Patient Alarms the machine by applying a certain number of modules, or removing faulty modules (while keeping the healthy modules working).This makes this type of a motor design applicable in certain life-critical applications, or in applications where scaling of the motor power might be needed.As a prototype, a low-power, low-speed generator added to a hook block of a hoist to supply power to measurement electronics is studied.