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分段定子开关磁通电机：新型绕组配置

Partitioned Stator Switched Flux Machine: Novel Winding Configurations.

作者信息

Irfan Muhammad, Rehman Naveed Ur, Khan Faisal, Muhammad Fazal, Alwadie Abdullah S, Glowacz Adam

机构信息

Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia.

Department of Electrical Engineering, City University of Science and Information Technology, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan.

出版信息

Entropy (Basel). 2020 Aug 22;22(9):920. doi: 10.3390/e22090920.

DOI:10.3390/e22090920
PMID:33286689
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7597168/
Abstract

Torque density is one of the major limiting factors in machine design. In this paper, we propose the hybrid excited partitioned stator switched flux machine3 (HE-PSSFM3). In HE-PSSFM3, armature winding is positioned on the outer stator whereas the permanent magnet (PM) and field winding are placed at the inner stator, while the rotor is free from excitation sources and armature winding. Moreover, concentrated field winding is replaced by toroidal winding. The power splitting ratio between two stators/rotor pole combinations is analytically optimized and are validated through genetic algorithm (GA) in order to enhance average torque and flux regulation capability. The electromagnetic characteristics of the improved and initial design are evaluated and compared with existing designs, i.e., HE-PSSFM1 and HE-PSSFM2. The proposed HE-PSSFM3 has achieved high average torque, i.e., 2.0015 Nm, at same armature and field current densities of 5 A/mm2. The results show that the average torques of the proposed design are 35% and 15% greater than HE-PSSFM1 and HE-PSSFM2, respectively. Furthermore, the analysis of various parameters such as flux linkage, flux regulation, electromagnetic performances, cogging torque, back EMF, electromagnetic torque, and torque ripples are investigated using two dimensional (2D) finite element analysis (FEA). Moreover, the simulation results of the proposed design are validated through GA and analytical modeling.

摘要

转矩密度是电机设计中的主要限制因素之一。在本文中，我们提出了混合励磁分区定子开关磁链电机3（HE-PSSFM3）。在HE-PSSFM3中，电枢绕组位于外定子上，而永磁体（PM）和励磁绕组置于内定子上，转子则没有励磁源和电枢绕组。此外，集中励磁绕组被环形绕组所取代。通过解析优化两个定子/转子磁极组合之间的功率分配比，并通过遗传算法（GA）进行验证，以提高平均转矩和磁通调节能力。对改进设计和初始设计的电磁特性进行了评估，并与现有设计（即HE-PSSFM1和HE-PSSFM2）进行了比较。所提出的HE-PSSFM3在电枢和励磁电流密度均为5 A/mm2的情况下，实现了较高的平均转矩，即2.0015 Nm。结果表明，所提出设计的平均转矩分别比HE-PSSFM1和HE-PSSFM2高35%和15%。此外，使用二维（2D）有限元分析（FEA）研究了诸如磁链、磁通调节、电磁性能、齿槽转矩、反电动势、电磁转矩和转矩脉动等各种参数。此外，所提出设计的仿真结果通过GA和解析建模进行了验证。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b450/7597168/aa2270a720c7/entropy-22-00920-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b450/7597168/2944a555e874/entropy-22-00920-g008.jpg
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