Analysis of Transmission Power and Efficiency of Side-Mounted Inductive Power Supply System for Metal Rotary Shafts

doi:10.1007/s12204-020-2181-4

Journal of Shanghai Jiaotong University(Science) ›› 2020, Vol. 25 ›› Issue (3): 273-280.doi: 10.1007/s12204-020-2181-4

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Analysis of Transmission Power and Efficiency of Side-Mounted Inductive Power Supply System for Metal Rotary Shafts

ZHAO Yong (赵勇), JI Xiaojun (吉小军), DAI Ming (戴明), QI Hongli (齐红丽), GAO Junkai (高浚凯)

(1. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. The No.704 Research Institute of China Shipbuilding Industry Corporation, Shanghai 200310, China)

出版日期:2020-06-15 发布日期:2020-05-29
通讯作者: JI Xiaojun (吉小军) E-mail: jxj127@sjtu.edu.cn

Analysis of Transmission Power and Efficiency of Side-Mounted Inductive Power Supply System for Metal Rotary Shafts

ZHAO Yong (赵勇), JI Xiaojun (吉小军), DAI Ming (戴明), QI Hongli (齐红丽), GAO Junkai (高浚凯)

(1. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. The No.704 Research Institute of China Shipbuilding Industry Corporation, Shanghai 200310, China)

Online:2020-06-15 Published:2020-05-29
Contact: JI Xiaojun (吉小军) E-mail: jxj127@sjtu.edu.cn

摘要/Abstract

摘要： The online detection of metal shaft parameters, such as torque, power and deformation, is widely applied in engineering projects. The power supply of metal shafts is the key to the detection reliability and practicality. However, traditional slip ring and battery power supply are limited in reliability and service life. In this paper, a side-mounted inductive power supply system for the rotating metal shaft is designed by using a Utype core. The equivalent reluctance and circuit models of the system are analyzed, and the methods of improving the coupling coefficient and transmission efficiency are proposed from theoretical analysis. Through the finite element simulation analysis of the system, the general relationships between the transmission power and efficiency of the system and the number of coil turns, the working frequency and the load are analyzed. The accuracy of theoretical analysis and simulation analysis is verified by the practical power transmission experiments. This paper provides a novel and reliable power supply method for inductive power supply of rotating equipment, and enriches the solutions of rotating power supply.

关键词: metal rotary shaft, inductive power supply, transmission efficiency, finite element analysis

Abstract: The online detection of metal shaft parameters, such as torque, power and deformation, is widely applied in engineering projects. The power supply of metal shafts is the key to the detection reliability and practicality. However, traditional slip ring and battery power supply are limited in reliability and service life. In this paper, a side-mounted inductive power supply system for the rotating metal shaft is designed by using a Utype core. The equivalent reluctance and circuit models of the system are analyzed, and the methods of improving the coupling coefficient and transmission efficiency are proposed from theoretical analysis. Through the finite element simulation analysis of the system, the general relationships between the transmission power and efficiency of the system and the number of coil turns, the working frequency and the load are analyzed. The accuracy of theoretical analysis and simulation analysis is verified by the practical power transmission experiments. This paper provides a novel and reliable power supply method for inductive power supply of rotating equipment, and enriches the solutions of rotating power supply.

Key words: metal rotary shaft, inductive power supply, transmission efficiency, finite element analysis

中图分类号:

TM 451

ZHAO Yong, JI Xiaojun, DAI Ming, QI Hongli, GAO Junkai. Analysis of Transmission Power and Efficiency of Side-Mounted Inductive Power Supply System for Metal Rotary Shafts[J]. Journal of Shanghai Jiaotong University(Science), 2020, 25(3): 273-280.

参考文献 16

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