Minimum Loss Control of a Five-phase Permanent Magnet Assisted Synchronous Reluctance Motor under Open Phase Fault

Minimum Loss Control of a Five-phase Permanent Magnet Assisted Synchronous Reluctance Motor under Open Phase Fault
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DOI：
10.1109/ecce44975.2020.9235438
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发表时间：
2020-10
期刊：
2020 IEEE Energy Conversion Congress and Exposition (ECCE)
影响因子：
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通讯作者：
A. Arafat;Md Nazmul Islam;Kazi Nishat Tasnim;Seungdeog Choi
A. Arafat;Md Nazmul Islam;Kazi Nishat Tasnim;Seungdeog Choi
中科院分区：
其他
文献类型：
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作者：
A. Arafat;Md Nazmul Islam;Kazi Nishat Tasnim;Seungdeog Choi

文献摘要

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在本文中，五相钕基永磁辅助同步磁阻电动机的效率进行了分析，在不同的两相开路故障（TPF）条件下进行最佳效率控制。由于在PMaSynRM中，转矩主要由凸极产生，因此在相位丢失条件下，该电机的性能严重恶化。这背后的主要原因是：1）失相条件在气隙中产生不均匀的磁通分布，2）剩余相电流变得不平衡，3）出现意外的电流谐波，以及4）最佳控制角从其原始位置偏移。由于所有这些影响，PMaSynRM的性能非常低。因此，最大效率控制变得至关重要。然而，在TPF条件下保持最大效率是具有挑战性的，这需要智能、快速和自适应的控制策略来执行平稳的长期操作。在本文中，特别注意的是开发一个分析故障模型，然后通过有限元建模，这是用来准确地计算故障下的PMa-SynRM的效率。同时，采用先进的控制方法，在这些故障中继续进行最大效率控制。
In this paper, the efficiency of a five-phase Nd- based permanent magnet assisted synchronous reluctance motor has been analyzed to perform optimal efficiency control under different two-phase open fault (TPF) conditions. Since in a PMaSynRM, the torque is generated primarily due to the saliency, under phase lost conditions, the performance of this machine deteriorates heavily. The major reasons behind this are the 1) phase lost condition creates non-uniform flux distribution in the airgap, 2) remaining phase currents become unbalanced, 3) unexpected current harmonics show up, and 4) optimal control angle shifts from its original. With all these effects, the PMaSynRM performs very inefficiently. Therefore, the maximum efficiency control becomes critical. However, maintaining maximum efficiency in the TPF condition is challenging, which requires a smart, fast, and adaptive control strategy to perform a smooth long-term operation. In this paper, particular attention is given to developing an analytical fault model followed by finite element modeling, which is utilized to calculate the efficiency accurately of the PMa-SynRM under faults. Also, an advanced control method has been adopted to continue the maximum efficiency control in those faults.