Research On Anti-offset Characteristics Of Wereless Energy Transmission System

Compared with the traditional wired transmission method,wireless power transfer(Wireless Power Transfer,WPT)avoids the problems of long cable use,performance degradation,and discharge at the device connection,which can make the system energy transmission more stable.It is currently used in electric vehicles,Mobile phones or small electronic products and human implantable devices.For wireless energy transmission systems,a higher anti-offset capability is an important performance index,which can enable the system to smoothly transmit power within a larger coupling coefficient range.Therefore,the research on anti-offset characteristics of WPT system is a major research hotspot in wireless energy transmission technology.This paper introduces the principle and characteristics of the basic magnetic coupling resonance(MCR)compensation network topology,and focuses on the transmission power and anti-offset characteristics of the series-series(SS)compensation network in several different resonance modes the study.At present,the main ways to improve the anti-offset ability of the system are to use a special compensation network and improve the coil structure,which can effectively improve the anti-offset ability of the system,but there are some shortcomings such as complex structure.In response to these problems,this paper analyzes and compares the system characteristics of the four resonant modes of the SS topology.The research shows that the anti-offset capability of the system is stronger than the full resonant state under a certain non-resonant state,and different detuning modes and parameters The transmission power of the lower system is very different.Applying the primary detuning parameter design to the secondary detuning and completely non-resonant modes,comparing the relationship between the system transmission power and anti-offset characteristics under different resonance modes,it is found that the compensation topology for completely non-resonant design has more Strong anti-offset properties.Finally,according to the conclusion of the theoretical analysis,the parameter design is used to determine the compensation parameters,the circuit model is built in the simulation software,the hardware experimental platform is designed and built,and the experimental data collection and calculation are carried out for the various situations of the design.The analysis results and the research content of this article are mutually confirmed.