Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems
Dynamic wireless power transfer (DWPT) systems with segmented transmitters suffer from output pulsations during the moving process. Although numerous coil structures have been developed to mitigate this fluctuation, the parameter design process is complicated and restricted by specific working condi...
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| Format: | Article |
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MDPI AG
2024-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/22/7171 |
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| author | Jia Li Chong Zhu Junyi Ji Jianquan Ma Xi Zhang |
| author_facet | Jia Li Chong Zhu Junyi Ji Jianquan Ma Xi Zhang |
| author_sort | Jia Li |
| collection | DOAJ |
| description | Dynamic wireless power transfer (DWPT) systems with segmented transmitters suffer from output pulsations during the moving process. Although numerous coil structures have been developed to mitigate this fluctuation, the parameter design process is complicated and restricted by specific working conditions (e.g., air gaps). To solve these problems, a novel reverse-bent modular transmitter structure is proposed for DWPT in industrial automatic application scenarios such as linear transport systems. Considering the heterogeneous current density distribution in the adjacent region between two coils which causes a drop in magnetic field, the proposed coil structure attempts to eliminate the effects of the adjacent region by bending the terminal parts of each coil reversely to the ferrite layer for shielding. Compared to traditional planar couplers, this structure array can generate a uniform magnetic field over various air gaps. A 100 W laboratory prototype was built to verify the feasibility of the proposed system. The experimental results show that the proposed system achieved a constant output voltage, and the output pulsation was within ±2.3% in the dynamic powering process. The average efficiency was about 88.29%, with a 200 mm transfer distance. When the air gap varied from 20 mm to 30 mm, the system could still retain constant voltage output characteristics. |
| format | Article |
| id | doaj-art-f62e3652a12e4efa90062197d7222d3e |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-f62e3652a12e4efa90062197d7222d3e2024-11-26T18:20:58ZengMDPI AGSensors1424-82202024-11-012422717110.3390/s24227171Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport SystemsJia Li0Chong Zhu1Junyi Ji2Jianquan Ma3Xi Zhang4School of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Traffic and Transportation, Bingtuan Xingxin Vocational and Technical College, Xinjiang 841007, ChinaSchool of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaDynamic wireless power transfer (DWPT) systems with segmented transmitters suffer from output pulsations during the moving process. Although numerous coil structures have been developed to mitigate this fluctuation, the parameter design process is complicated and restricted by specific working conditions (e.g., air gaps). To solve these problems, a novel reverse-bent modular transmitter structure is proposed for DWPT in industrial automatic application scenarios such as linear transport systems. Considering the heterogeneous current density distribution in the adjacent region between two coils which causes a drop in magnetic field, the proposed coil structure attempts to eliminate the effects of the adjacent region by bending the terminal parts of each coil reversely to the ferrite layer for shielding. Compared to traditional planar couplers, this structure array can generate a uniform magnetic field over various air gaps. A 100 W laboratory prototype was built to verify the feasibility of the proposed system. The experimental results show that the proposed system achieved a constant output voltage, and the output pulsation was within ±2.3% in the dynamic powering process. The average efficiency was about 88.29%, with a 200 mm transfer distance. When the air gap varied from 20 mm to 30 mm, the system could still retain constant voltage output characteristics.https://www.mdpi.com/1424-8220/24/22/7171dynamic wireless power transfercoil structurelinear transport systems |
| spellingShingle | Jia Li Chong Zhu Junyi Ji Jianquan Ma Xi Zhang Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems Sensors dynamic wireless power transfer coil structure linear transport systems |
| title | Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems |
| title_full | Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems |
| title_fullStr | Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems |
| title_full_unstemmed | Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems |
| title_short | Reverse-Bent Modular Coil Structure with Enhanced Output Stability in DWPT for Arbitrary Linear Transport Systems |
| title_sort | reverse bent modular coil structure with enhanced output stability in dwpt for arbitrary linear transport systems |
| topic | dynamic wireless power transfer coil structure linear transport systems |
| url | https://www.mdpi.com/1424-8220/24/22/7171 |
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