Design and performance analysis of non-contact power transmission in the ultrasonic system
TANG Jun 1*, ZHAO Bo 2， LI Wenxing 1
(1 Department of Mechanical and Electrical Engineering, Xinxiang University, Xinxiang 453003, Henan, China；2 School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China)
Abstract:
Based on the principle of electromagnetic induction and equivalent circuit method, the theoretical model of ultrasonic non-contact power transmission system is established, and the equivalent impedance and the reflected impedance of the primary and secondary edges are obtained. Then the magnet software is used to simulate the non-contact power transmission system, and the influence of the air gap, the core axis offset and the core axis tilt on the transmission efficiency and the coupling coefficient is obtained. Finally, the transmission efficiency of the non-contact power transmission system is tested. The results show that the power transmission efficiency is 70.1%.
KeyWords:
ultrasonic vibration; electromagnetic induction; non-contact power transfer; finite element analysis (FEA)
