Synchronous reluctance motor with concentrated windings for IE4 efficiency
Synchronous reluctance motor with concentrated windings for IE4 efficiency
复制标题
具有集中绕组的同步磁阻电机，可实现 IE4 效率
DOI：
10.1109/ecce.2017.8096686
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
S. Ferrari
中科院分区：
文献类型：
--
作者：
M. Gamba;G. Pellegrino;E. Armando;S. Ferrari
本文研究了分槽集中绕组在同步磁阻电动机工业应用中的适用性。齿绕绕组由于其较低的制造成本而对行业具有吸引力，但当与同步磁阻转子相关联时，它们往往会显著降低机器的输出转矩和功率因数，并激发高值的转矩脉动。分析表明，经过设计优化，一台集中绕组同步磁阻电机在同一机架内，在相同尺寸的分布绕组同步磁阻电机中，可以达到IE4（超优）效率等级。此外，本文还论证了同步磁阻转子在由分布绕组过渡到集中绕组时，必须针对新定子进行有针对性的重新设计，以减轻转矩脉动。在有限元分析和实验结果的支持下，给出了逐步设计的步骤。
This paper investigates the applicability of fractional-slot concentrated windings to Synchronous Reluctance Motors for industry applications. Tooth-wound winding arrangements are attractive for the industry due to their lower cost of manufacturing, but when associated to a synchronous reluctance rotor they tend to lower the output torque and power factor of the machine significantly, and to excite high values of torque ripple. The proposed analysis shows that after design optimization one synchronous reluctance machine with concentrated windings can reach the IE4 (super-premium) efficiency class within the same frame of a distributed-winding synchronous reluctance machine of the same size. Moreover, the paper demonstrates that the synchronous reluctance rotor must be purposely redesigned for the new stator, when passing from distributed to concentrated windings, for the sake of torque ripple mitigation. A step by step design procedure is provided, supported by finite-element analysis and experimental results.