A Reduced-Order Model for Wirelessly Excited Machine Based on Linear Approximation
Kang, Jinsong1; Liu, Yusong2; Sun, Liangrong2; Zhong, Zaimin3; Fu, Minfan4

Due to the high cost and shortage of rare earth materials, electrically excited synchronous machines (EESMs) become a potential alternative for electric vehicles. With the help of inductive power transfer (IPT), the EESM would easily realize the brushless excitation to improve its reliability. However, the dependence of IPT and EESM leads to significant control challenge, especially considering the inductive load characteristics. When the traditional modeling approaches are applied to the whole system, a complicated 13th-order model is built, which is unfavorable for dynamic analysis. For simplification, this article proposes a systematic and universal reduced-order model approach based on the local linear approximation of resonant voltage/current. A reduced ninth-order model of system is then obtained based on the approach. The frequency domain characteristic of primary-side control is analyzed, and the reduced-order model has high accuracy compared with the full-order one. Finally, the experimental results are given out to verify the effectiveness of the proposed modeling method.

KeywordWindings Integrated circuit modeling Load modeling Inductance Vehicle dynamics Stator windings Couplings Dynamic modeling inductive power transfer (IPT) machine excitation order reduction
Indexed BySCI
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000678445700032
Original Document TypeArticle
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Tongji Univ, Inst Rail Transit, Shanghai 201804, Peoples R China;
2.Tongji Univ, Coll Elect & Informat Engn, Shanghai 201804, Peoples R China;
3.Tongji Univ, Sch Automot Studies, Shanghai 201804, Peoples R China;
4.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
Recommended Citation
GB/T 7714
Kang, Jinsong,Liu, Yusong,Sun, Liangrong,et al. A Reduced-Order Model for Wirelessly Excited Machine Based on Linear Approximation[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS,2021,36(11):12389-12399.
APA Kang, Jinsong,Liu, Yusong,Sun, Liangrong,Zhong, Zaimin,&Fu, Minfan.(2021).A Reduced-Order Model for Wirelessly Excited Machine Based on Linear Approximation.IEEE TRANSACTIONS ON POWER ELECTRONICS,36(11),12389-12399.
MLA Kang, Jinsong,et al."A Reduced-Order Model for Wirelessly Excited Machine Based on Linear Approximation".IEEE TRANSACTIONS ON POWER ELECTRONICS 36.11(2021):12389-12399.
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