Fast design method of variable flux reluctance machines

In this paper, a fast design method is developed based on a combination of analytical and finite element (FE) methods for variable flux reluctance machines (VFRMs). Firstly, the feasibility of using analytical method in optimization under unsaturated condition is confirmed. Then, by applying the FE...

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Main Authors: L.R. Huang, J.H. Feng, S.Y. Guo, J.X. Shi, W.Q. Chu, Z.Q. Zhu
Format: Article
Language:English
Published: China Electrotechnical Society 2018-03-01
Series:CES Transactions on Electrical Machines and Systems
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8326462
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author L.R. Huang
J.H. Feng
S.Y. Guo
J.X. Shi
W.Q. Chu
Z.Q. Zhu
author_facet L.R. Huang
J.H. Feng
S.Y. Guo
J.X. Shi
W.Q. Chu
Z.Q. Zhu
author_sort L.R. Huang
collection DOAJ
description In this paper, a fast design method is developed based on a combination of analytical and finite element (FE) methods for variable flux reluctance machines (VFRMs). Firstly, the feasibility of using analytical method in optimization under unsaturated condition is confirmed. Then, by applying the FE method, the influence of magnetic saturation is considered. Compared with the unsaturated case, the optimal split ratio for magnetically saturated case is increased by 1~1.2 times, the optimal rotor pole arc ratio varies within 0.33~0.44, and the stator pole arc ratio remains the same. Based on this, the optimal structural parameters can be initially set by analytical method and then refined by the FE method. Due to the fast speed of analytical method, less variable counts and narrowed variation ranges, the proposed method is significantly faster than the conventional pure FE based global optimization. Finally, the proposed method is used for optimizing the 6-stator-slots VFRMs having different numbers of rotor poles. The 6-stator-slot/7-rotor-pole (6s/7r) VFRM is found to have the highest torque density. It is prototyped and tested to verify the analyses.
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spelling doaj.art-a0b3f122139841f3bd7defccd1860c902023-07-31T14:25:07ZengChina Electrotechnical SocietyCES Transactions on Electrical Machines and Systems2096-35642837-03252018-03-012115215910.23919/TEMS.2018.8326462Fast design method of variable flux reluctance machinesL.R. Huang0J.H. Feng1S.Y. Guo2J.X. Shi3W.Q. Chu4Z.Q. Zhu5The University of Sheffield, Sheffield, Sheffield, GBCRRC Zhuzhou Institute Co. Ltd, Shidai Road, Shifeng District, Zhuzhou, Hunan, ChinaCRRC Zhuzhou Institute Co. Ltd, Shidai Road, Shifeng District, Zhuzhou, Hunan, ChinaCRRC Zhuzhou Institute Co. Ltd, Shidai Road, Shifeng District, Zhuzhou, Hunan, ChinaCRRC Zhuzhou Institute Co. Ltd, Shidai Road, Shifeng District, Zhuzhou, Hunan, ChinaThe University of Sheffield, Sheffield, Sheffield, GBIn this paper, a fast design method is developed based on a combination of analytical and finite element (FE) methods for variable flux reluctance machines (VFRMs). Firstly, the feasibility of using analytical method in optimization under unsaturated condition is confirmed. Then, by applying the FE method, the influence of magnetic saturation is considered. Compared with the unsaturated case, the optimal split ratio for magnetically saturated case is increased by 1~1.2 times, the optimal rotor pole arc ratio varies within 0.33~0.44, and the stator pole arc ratio remains the same. Based on this, the optimal structural parameters can be initially set by analytical method and then refined by the FE method. Due to the fast speed of analytical method, less variable counts and narrowed variation ranges, the proposed method is significantly faster than the conventional pure FE based global optimization. Finally, the proposed method is used for optimizing the 6-stator-slots VFRMs having different numbers of rotor poles. The 6-stator-slot/7-rotor-pole (6s/7r) VFRM is found to have the highest torque density. It is prototyped and tested to verify the analyses.https://ieeexplore.ieee.org/document/8326462analytical methodoptimal designtorque densityvariable flux reluctance machine
spellingShingle L.R. Huang
J.H. Feng
S.Y. Guo
J.X. Shi
W.Q. Chu
Z.Q. Zhu
Fast design method of variable flux reluctance machines
CES Transactions on Electrical Machines and Systems
analytical method
optimal design
torque density
variable flux reluctance machine
title Fast design method of variable flux reluctance machines
title_full Fast design method of variable flux reluctance machines
title_fullStr Fast design method of variable flux reluctance machines
title_full_unstemmed Fast design method of variable flux reluctance machines
title_short Fast design method of variable flux reluctance machines
title_sort fast design method of variable flux reluctance machines
topic analytical method
optimal design
torque density
variable flux reluctance machine
url https://ieeexplore.ieee.org/document/8326462
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AT jxshi fastdesignmethodofvariablefluxreluctancemachines
AT wqchu fastdesignmethodofvariablefluxreluctancemachines
AT zqzhu fastdesignmethodofvariablefluxreluctancemachines