J Shanghai Jiaotong Univ Sci ›› 2021, Vol. 26 ›› Issue (1): 76-83.doi: 10.1007/s12204-021-2263-y
Design of Multi-Coil Wireless Power Transfer System for Gastrointestinal Capsule Robot
CHEN Fanji (陈范吉), JIANG Pingping (姜萍萍), YAN Guozheng (颜国正), WANG Wei (汪炜), MENG Yicun (孟一村)
- (School of Electronic Information and Electrical Engineering; Institute of Medical Robotics,
Shanghai Jiao Tong University, Shanghai 200240, China)
-
出版日期:2021-02-28发布日期:2021-01-19 -
通讯作者:JIANG Pingping (姜萍萍) E-mail:jpp99@sjtu.edu.cn
Design of Multi-Coil Wireless Power Transfer System for Gastrointestinal Capsule Robot
CHEN Fanji (陈范吉), JIANG Pingping (姜萍萍), YAN Guozheng (颜国正), WANG Wei (汪炜), MENG Yicun (孟一村)
- (School of Electronic Information and Electrical Engineering; Institute of Medical Robotics,
Shanghai Jiao Tong University, Shanghai 200240, China)
-
Online:2021-02-28Published:2021-01-19 -
Contact:JIANG Pingping (姜萍萍) E-mail:jpp99@sjtu.edu.cn
摘要： The existing wireless power transfer (WPT) systems for gastrointestinal capsule robot have the problems of small coupling coefficient and low power transmission efficiency (PTE). The reasons are due to the longdistance between the transmitting coil and the receiving coil and the large difference in size. A new type of WPT system is designed, which uses three sets of small coil pairs to form a power supply unit (PSU), and utilizes multiple PSUs to form a multi-coil WPT system. Compared with single-coil system, the multi-coil system can achieve higher power utilization by switching between PSUs, instead of opening all PSUs. ANSYS Maxwell is used to perform finite element modeling on the PSU, analyzing the characteristics of the transmitting magnetic field. The results of the experiment show that when the distance between the small coil pairs in the PSU is 180 mm, the magnetic field has relatively good uniformity, and the magnetic strength change relative to the center point is less than 5%. The average received power of the system is greater than 800mW, and the PTE is up to 5.1%.
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CHEN Fanji (陈范吉), JIANG Pingping (姜萍萍), YAN Guozheng (颜国正), WANG Wei (汪炜), MENG Yicun (孟一村). Design of Multi-Coil Wireless Power Transfer System for Gastrointestinal Capsule Robot[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(1): 76-83.
CHEN Fanji (陈范吉), JIANG Pingping (姜萍萍), YAN Guozheng (颜国正), WANG Wei (汪炜), MENG Yicun (孟一村). Design of Multi-Coil Wireless Power Transfer System for Gastrointestinal Capsule Robot[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(1): 76-83.
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