摘要
运用电路理论,推导出四线圈磁耦合谐振式无线电能传输系统传输效率的表达式,并分析了影响传输效率的主要因素。当线圈结构参数选定时,源线圈与发射线圈之间的距离和接收线圈与负载线圈之间的距离成为无线电能传输系统传输距离变化时影响传输效率的关键参数。采用差分进化算法对影响因子进行优化,该方法使得四线圈磁耦合谐振式无线电能传输系统在传输距离发生变化时能动态调整提高传输效率。最后,通过仿真验证了此方法的正确性。
Based on circuit theory,the expression of transmission efficiency of the four-coil magnetically coupled resonance(MCR)wireless power transfer(WPT)system was derived,and the main factors affecting transmission efficiency were analyzed.With the designated coil structure parameters,the distance between the source coil and transmitting coil and the distance between the receiving coil and load coil become the main influence factors of the transmission efficiency of MCR WPT system when the transmission distance changes.The differential evolution algorithm was used to optimize the influence factors,enabling the MCR WPT system to dynamically adjust the transmission efficiency when the transmission distance changed.Finally,the correctness of the optimization method was verified through simulation analysis.
作者
吴泽迅
闫荣格
郭晓婷
曹少卿
WU Ze-xun;YAN Rong-ge;GUO Xiao-ting;CAO Shao-qing(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China)
出处
《电源技术》
CAS
北大核心
2020年第8期1212-1216,共5页
Chinese Journal of Power Sources
基金
国家自然科学基金面上项目(51777054)。
关键词
无线电能传输
差分进化算法
传输效率
动态优化
wireless power transfer
differential evolution algorithm
transmission efficiency
dynamic optimization
