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Open-Circuit Fault Tolerant Study of Bearingless Multi-Sector Permanent Magnet Machines

机译：无轴承多扇区永磁电机的开路容错研究

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摘要

This paper presents a fault tolerant study of a multiphase sectored permanent magnet synchronous machine involving a tripel three-phase winding. The machine electro-megnetic model is written in a general way so that it can be extended and applied to all machines with a similar winding structure. An expression of the d-q axis reference currents of each three-phase winding as a function of the x - y force components and torque is provided taking into acccunt the Joule losses minimization. Then, the case of open-circuit of one winding sector is considered, the model of the faulty machine derived and an expression of the new reference currents needed to generate radial suspension force and motoring torque is written.Finally, the theoretical analysis are validated through finite elements simulations and the levitation performance of the machine considered are evaluated in the Matlab-Simulink environment in the case of one sector fault per time.
机译：本文提出了一种涉及三相三相绕组的多相扇形永磁同步电机的容错研究。机器的电动模型以通用方式编写，因此可以扩展并应用于具有类似绕组结构的所有机器。考虑到焦耳损耗最小化，提供了每个三相绕组的d-q轴参考电流与x-y力分量和转矩的函数关系。然后，考虑了一个绕组扇形断路的情况，推导了故障电机的模型，并写出了产生径向悬架力和电动机转矩所需要的新参考电流的表达式。最后，通过理论验证在Matlab-Simulink环境中，如果每次出现一个扇区故障，则将评估所考虑机器的有限元模拟和悬浮性能。

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