Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm

With the popularity of electric vehicles (EVs), the application of wireless power transfer (WPT) in EVs has attracted more and more attention. The coupling coil is the key component to realize the stable transmission of electric energy, but in the process of wireless charging, the position of the pr...

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Main Authors: Feng Wen, Dashang Zhang, Chen Han, Guoqi Zhang, Guofeng Li, Xiang Zhang, Jianxing Ma, Zhijun Yao, Kaiming Yu
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722009520
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author Feng Wen
Dashang Zhang
Chen Han
Guoqi Zhang
Guofeng Li
Xiang Zhang
Jianxing Ma
Zhijun Yao
Kaiming Yu
author_facet Feng Wen
Dashang Zhang
Chen Han
Guoqi Zhang
Guofeng Li
Xiang Zhang
Jianxing Ma
Zhijun Yao
Kaiming Yu
author_sort Feng Wen
collection DOAJ
description With the popularity of electric vehicles (EVs), the application of wireless power transfer (WPT) in EVs has attracted more and more attention. The coupling coil is the key component to realize the stable transmission of electric energy, but in the process of wireless charging, the position of the primary and secondary coils may be misaligned, resulting in the change of mutual inductance and the instability of output current and power. Therefore, the study of the structure of the coupling coil is helpful to improve the transmission performance of WPT. In order to improve the anti-offset ability of the coupling coil, a DS (Double tangent semicircle) coil model based on the DD (Double D) coil is proposed in this paper, which can improve the pick-up ability and anti-offset ability of the receiver coil. Through theoretical analysis, genetic algorithm (GA) optimization, simulation analysis and experiments, it is verified that DS coil is better than DD coil in horizontal offset state and rotary offset state. At the same time, the experiments show when the rotation angle is in the range of −45° to 45° and 135° to 225°, that the current at the receiving end remains stable, and the maximum change rate is only 0.3%. This paper is of great significance to the optimal design of WPT coupling coil.
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spelling doaj.art-556f36142ead4f63a6f939c052c1bd8a2023-01-20T04:24:58ZengElsevierEnergy Reports2352-48472022-11-01819Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithmFeng Wen0Dashang Zhang1Chen Han2Guoqi Zhang3Guofeng Li4Xiang Zhang5Jianxing Ma6Zhijun Yao7Kaiming Yu8School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China; Corresponding author.School of Automation, Nanjing University of Science and Technology, Nanjing 210094, ChinaExtra High Voltage Branch Company, State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211102, ChinaSchool of Automation, Nanjing University of Science and Technology, Nanjing 210094, ChinaTanac Automation Co.,Ltd., Jiaxing 314117, ChinaSchool of Automation, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Automation, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Automation, Nanjing University of Science and Technology, Nanjing 210094, ChinaTanac Automation Co.,Ltd., Jiaxing 314117, ChinaWith the popularity of electric vehicles (EVs), the application of wireless power transfer (WPT) in EVs has attracted more and more attention. The coupling coil is the key component to realize the stable transmission of electric energy, but in the process of wireless charging, the position of the primary and secondary coils may be misaligned, resulting in the change of mutual inductance and the instability of output current and power. Therefore, the study of the structure of the coupling coil is helpful to improve the transmission performance of WPT. In order to improve the anti-offset ability of the coupling coil, a DS (Double tangent semicircle) coil model based on the DD (Double D) coil is proposed in this paper, which can improve the pick-up ability and anti-offset ability of the receiver coil. Through theoretical analysis, genetic algorithm (GA) optimization, simulation analysis and experiments, it is verified that DS coil is better than DD coil in horizontal offset state and rotary offset state. At the same time, the experiments show when the rotation angle is in the range of −45° to 45° and 135° to 225°, that the current at the receiving end remains stable, and the maximum change rate is only 0.3%. This paper is of great significance to the optimal design of WPT coupling coil.http://www.sciencedirect.com/science/article/pii/S2352484722009520Wireless power transfer (WPT)DD (Double D) coilDS (Double tangent semicircle) coilGenetic algorithm (GA)
spellingShingle Feng Wen
Dashang Zhang
Chen Han
Guoqi Zhang
Guofeng Li
Xiang Zhang
Jianxing Ma
Zhijun Yao
Kaiming Yu
Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
Energy Reports
Wireless power transfer (WPT)
DD (Double D) coil
DS (Double tangent semicircle) coil
Genetic algorithm (GA)
title Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
title_full Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
title_fullStr Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
title_full_unstemmed Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
title_short Anti-offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
title_sort anti offset performance optimization of coupling coils in wireless power transfer system based on genetic algorithm
topic Wireless power transfer (WPT)
DD (Double D) coil
DS (Double tangent semicircle) coil
Genetic algorithm (GA)
url http://www.sciencedirect.com/science/article/pii/S2352484722009520
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