Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation
Due to weak coupling of loosely coupled transformer (LCT) in inductive power transfer (IPT) system, misalignment between primary and secondary coils can reduce the efficiency of IPT system seriously, which inevitably results in preventing application of IPT system in electric vehicle field. To impro...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10225040/ |
| _version_ | 1797733187651108864 |
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| author | Fuyao Yang Yang Liu Yu Han Jiaqi Chen Shaoyu Cheng Zihan Tian Haisen Zhao |
| author_facet | Fuyao Yang Yang Liu Yu Han Jiaqi Chen Shaoyu Cheng Zihan Tian Haisen Zhao |
| author_sort | Fuyao Yang |
| collection | DOAJ |
| description | Due to weak coupling of loosely coupled transformer (LCT) in inductive power transfer (IPT) system, misalignment between primary and secondary coils can reduce the efficiency of IPT system seriously, which inevitably results in preventing application of IPT system in electric vehicle field. To improve the misalignment tolerance of the IPT system, a three-coil LCT with a large intermediate coil and detuned compensation are proposed and analyzed comprehensively. Firstly, analytical model is established and related equations are derived. Then to study the optimal compensation parameters, coil currents are simulated by finite element analysis (FEA) under misalignment condition with different compensation parameters, and the efficiency and output power are also compared. Furthermore, intermediate coil size is determined, and an optimization strategy for IPT system with three-coil LCT is proposed. Finally, it is verified on an IPT prototype that three-coil LCT with a large intermediate coil can improve the misalignment tolerance. |
| first_indexed | 2024-03-12T12:25:30Z |
| format | Article |
| id | doaj.art-3e97ee36e130407bb41e9a4e954e5e65 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-12T12:25:30Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-3e97ee36e130407bb41e9a4e954e5e652023-08-29T23:00:20ZengIEEEIEEE Access2169-35362023-01-0111901819018910.1109/ACCESS.2023.330695510225040Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned CompensationFuyao Yang0Yang Liu1Yu Han2Jiaqi Chen3Shaoyu Cheng4Zihan Tian5https://orcid.org/0009-0004-8593-8926Haisen Zhao6https://orcid.org/0000-0003-3178-2490State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Company Ltd., Beijing, ChinaState Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Company Ltd., Beijing, ChinaState Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Company Ltd., Beijing, ChinaState Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University (NCEPU), Beijing, ChinaState Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University (NCEPU), Beijing, ChinaState Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University (NCEPU), Beijing, ChinaState Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University (NCEPU), Beijing, ChinaDue to weak coupling of loosely coupled transformer (LCT) in inductive power transfer (IPT) system, misalignment between primary and secondary coils can reduce the efficiency of IPT system seriously, which inevitably results in preventing application of IPT system in electric vehicle field. To improve the misalignment tolerance of the IPT system, a three-coil LCT with a large intermediate coil and detuned compensation are proposed and analyzed comprehensively. Firstly, analytical model is established and related equations are derived. Then to study the optimal compensation parameters, coil currents are simulated by finite element analysis (FEA) under misalignment condition with different compensation parameters, and the efficiency and output power are also compared. Furthermore, intermediate coil size is determined, and an optimization strategy for IPT system with three-coil LCT is proposed. Finally, it is verified on an IPT prototype that three-coil LCT with a large intermediate coil can improve the misalignment tolerance.https://ieeexplore.ieee.org/document/10225040/Compensation parameterinductive power transfer (IPT)loosely coupled transformer (LCT)misalignment tolerance |
| spellingShingle | Fuyao Yang Yang Liu Yu Han Jiaqi Chen Shaoyu Cheng Zihan Tian Haisen Zhao Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation IEEE Access Compensation parameter inductive power transfer (IPT) loosely coupled transformer (LCT) misalignment tolerance |
| title | Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation |
| title_full | Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation |
| title_fullStr | Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation |
| title_full_unstemmed | Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation |
| title_short | Misalignment Tolerance Improvement for Loosely Coupled Transformer of IPT Systems via an Intermediate Coil With Detuned Compensation |
| title_sort | misalignment tolerance improvement for loosely coupled transformer of ipt systems via an intermediate coil with detuned compensation |
| topic | Compensation parameter inductive power transfer (IPT) loosely coupled transformer (LCT) misalignment tolerance |
| url | https://ieeexplore.ieee.org/document/10225040/ |
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