基于数字信号处理器的磁耦合谐振式无线电能频率跟踪特性  

Frequency Tracking Characteristics of Magnetic Coupling Resonant Wireless Power Based on Digital Signal Processing

作　　者：刘佳[1] 陈海燕[1] 赵世龙 LIU Jia;CHEN Hai-yan;ZHAO Shi-long(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学省部共建电工装备可靠性与智能化国家重点实验室河北省电磁场与电器可靠性重点实验室

出　　处：《科学技术与工程》2019年第30期179-184,共6页Science Technology and Engineering

摘　　要：磁耦合谐振式的传能方式是目前最具发展前景的无线电能传输方式之一。在磁耦合谐振无线电能传输系统中,系统的频率变化对系统效率影响十分明显。为了提高无线电能传输系统的效率,利用DSP锁相原理设计了一套频率跟踪系统,采用基于第一频率校正和后频率相位同校正的频率跟踪方法,解决了系统在高频或频率变化比较大的情况下,频率跟踪缓慢的问题。仿真与实验结果表明:与未加跟踪的系统对比,效率提升明显,系统传输更加可靠。具有频率跟踪的系统有更好的传输性能,以及更高的传输效率。The magnetic coupling resonant energy transfer mode is one of the most promising wireless energy transmission methods.In the magnetic coupled resonant wireless energy transmission system,the frequency variation of the system has a significant impact on system efficiency.In order to improve the efficiency of the wireless energy transmission system.The frequency tracking system is designed by using the principle of DSP phase lock.It uses a frequency tracking method based on the first frequency correction and the post-frequency phase correction to solve the problem and when the frequency changes frequently or the frequency is relatively large.Simulation and experimental results show,compared with the untracked system,the efficiency is improved significantly and the system transmission is more reliable.Systems with frequency tracking have better transmission performance and higher transmission efficiency.

关 键 词：磁耦合谐振 无线能量传输 频率特性 频率追踪 

分 类 号：TM724[电气工程—电力系统及自动化]