金属环境对引信磁共振耦合无线装定系统参数影响
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摘要
引信磁共振耦合无线装定系统位于圆筒形金属环境内工作时,装定线圈因金属环境影响会产生散射场阻抗,导致系统工作参数变化。针对该问题,建立了线圈散射场阻抗计算模型,通过实验研究了线圈等效参数随频率、间距、金属材料的变化规律。理论分析与实验结果表明:所建模型正确,理论计算结果与实验值较为吻合;金属物体的存在会引起装定线圈等效电阻值增大、电感值减小;铁磁性金属材料较非铁磁性金属材料所引起的线圈电阻值增加量更多,而电感值减少量则小些;利用所建模型计算出金属环境引起的散射场阻抗后,通过电路电容参数调整,可使装定系统重新回归共振状态。所建模型为金属环境影响下的引信无线装定系统线圈参数定量计算提供了理论参考。
When the magnetic resonance coupling wireless setting system of fuze is located in cylindrical metal environment,the setting coil will produce the scattering field impedance due to the influence of the metal environment,resulting in change of the working parameters of the system. In order to study this problem,a calculation model of the coil scattering field impedance is established,and the change rules of equivalent parameters of coil with frequency,spacing and metal material are researched experimentally.The theoretical analysis and experimental results show that the proposed model is correct,and the theoretically calculated results are consistent with the experimental results. The equivalent resistance of the coil increases and the inductance decreases due to the existence of metal objects. In addition,the in-crease in resistance caused by ferromagnetic materials is more than that caused by non-ferromagnetic metal materials,while the decrease in inductance is less. After the scattering field impedance caused by metal environment is calculated by using the proposed model,the setting system can be returned to the resonance state by adjusting the capacitance parameters of the circuit. The proposed model can be used for the quantitative calculation of setting coil parameters under the influence of metal environment.
When the magnetic resonance coupling wireless setting system of fuze is located in cylindrical metal environment,the setting coil will produce the scattering field impedance due to the influence of the metal environment,resulting in change of the working parameters of the system. In order to study this problem,a calculation model of the coil scattering field impedance is established,and the change rules of equivalent parameters of coil with frequency,spacing and metal material are researched experimentally.The theoretical analysis and experimental results show that the proposed model is correct,and the theoretically calculated results are consistent with the experimental results. The equivalent resistance of the coil increases and the inductance decreases due to the existence of metal objects. In addition,the in-crease in resistance caused by ferromagnetic materials is more than that caused by non-ferromagnetic metal materials,while the decrease in inductance is less. After the scattering field impedance caused by metal environment is calculated by using the proposed model,the setting system can be returned to the resonance state by adjusting the capacitance parameters of the circuit. The proposed model can be used for the quantitative calculation of setting coil parameters under the influence of metal environment.
引文
[1]李长生.电磁能量和信息近场耦合理论及其同步传输技术研究[D].南京:南京理工大学,2012.LI Chang-sheng.Research on the near-field coupling theory and synchronous transmission technology of electromagnetic power and information[D].Nanjing:Nanjing University of Science and Technology,2012.(in Chinese)
[2]常悦,沈晓军,李杰,等.灵巧弹药感应装定系统基带码型特征分析及应用研究[J].兵工学报,2016,37(6):996-1005.CHANG Yue,SHEN Xiao-jun,LI Jie,et al.Analysis and application research on baseband code characteristics of inductive setting system for smart ammunition[J].Acta Armamentarii,2016,37(6):996-1005.(in Chinese)
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[10]李长生,李炜昕,张合,等.引信用磁耦合谐振系统复杂环境能量损耗分析[J].兵工学报,2014,35(8):1137-1143.LI Chang-sheng,LI Wei-xin,ZHANG He,et al.Research on energy loss of fuze setting system based on magnetic resonant coupling in complex environment[J].Acta Armamentarii,2014,35(8):1137-1143.(in Chinese)
[11]Jeong N S,Carobolante F.Wireless charging of a metal-body device[J].IEEE Transactions on Microwave Theory and Techniques,2017,65(4):1077-1086.
[12]李长生,曹娟,张合.非铁磁性金属影响下的磁共振耦合电能传输系统建模与分析[J].电力系统自动化,2015,39(23):152-157.LI Chang-sheng,CAO Juan,ZHANG He.Modeling and analysis for magnetic resonance coupling wireless power transmission systems under influence of non-ferromagnetic metal[J].Automation of Electric Power Systems,2015,39(23):152-157.(in Chinese)
[13]陈琛,黄学良,孙文慧,等.金属障碍物对磁耦合谐振无线电能传输系统的影响[J].电工技术学报,2014,29(9):22-26.CHEN Chen,HUANG Xue-liang,SUN Wen-hui,et al.Impact of metal obstacles on wireless power transmission system based coupled resonance[J].Transactions of China Electrotechnical Society,2014,29(9):22-26.(in Chinese)
[14]杨玉岗,卢进,代少杰.含中继线圈无线电能传输金属障碍物仿真分析[J].计算机仿真,2016,33(1):260-263.YANG Yu-gang,LU Jin,DAI Shao-jie.Analysis of impact upon metal obstacles on wireless power transmission with delay coil[J].Computer Simulation,2016,33(1):260-263.(in Chinese)
[15]雷银照.时谐电磁场解析方法[M].北京:科学出版社,2000.LEI Yin-zhao.Analytical method of time harmonic electromagnetic field[M].Beijing:Science Press,2000.(in Chinese)
[2]常悦,沈晓军,李杰,等.灵巧弹药感应装定系统基带码型特征分析及应用研究[J].兵工学报,2016,37(6):996-1005.CHANG Yue,SHEN Xiao-jun,LI Jie,et al.Analysis and application research on baseband code characteristics of inductive setting system for smart ammunition[J].Acta Armamentarii,2016,37(6):996-1005.(in Chinese)
[3]廖翔,李豪杰,张合.坦克炮弹药共用底火装定能量双向隔离系统设计方法[J].兵工学报,2017,38(4):673-678.LIAO Xiang,LI Hao-jie,ZHANG He.Design method of energy isolation system for fuze setting via primer[J].Acta Armamentarii,2017,38(4):673-678.(in Chinese)
[4]李长生,张合.基于磁共振的引信用能量和信息无线同步传输方法研究[J].兵工学报,2011,32(5):537-542.LI Chang-sheng,ZHANG He.Research on wireless power and information synchronous transmission method based on magnetic resonance for fuzes[J].Acta Armamentarii,2011,32(5):537-542.(in Chinese)
[5]Kurs A,Karalis A,Moffatt R,et al.Wireless power transfer via strongly coupled magnetic resonances[J].Science,2007,317(5834):83-86.
[6]Costanzo A,Dionigi M,Mastri F,et al.Conditions for a load-independent operating regime in resonant inductive WPT[J].IEEE Transactions on Microwave Theory and Techniques,2017,65(4):1066-1076.
[7]Li C S,Zhang H,Jiang X H.Parameters optimization for magnetic resonance coupling wireless power transmission[EB/OL].(2014-05-13)[2017-02-06].https:∥www.hindawi.com/journals/tswj/2014/321203/.
[8]Yang G,Moghadam M R V,Zhang R.Magnetic MIMO signal processing and optimization for wireless power transfer[J].IEEE Transactions on Signal Processing,2017,65(11):2860-2874.
[9]赵争鸣,张艺明,陈凯楠.磁耦合谐振式无线电能传输技术新进展[J].中国电机工程学报,2013,33(3):1-13.ZHAO Zheng-ming,ZHANG Yi-ming,CHEN Kai-nan.New progress of magnetically-coupled resonant wireless power transfer technology[J].Proceedings of the CSEE,2013,33(3):1-13.(in Chinese)
[10]李长生,李炜昕,张合,等.引信用磁耦合谐振系统复杂环境能量损耗分析[J].兵工学报,2014,35(8):1137-1143.LI Chang-sheng,LI Wei-xin,ZHANG He,et al.Research on energy loss of fuze setting system based on magnetic resonant coupling in complex environment[J].Acta Armamentarii,2014,35(8):1137-1143.(in Chinese)
[11]Jeong N S,Carobolante F.Wireless charging of a metal-body device[J].IEEE Transactions on Microwave Theory and Techniques,2017,65(4):1077-1086.
[12]李长生,曹娟,张合.非铁磁性金属影响下的磁共振耦合电能传输系统建模与分析[J].电力系统自动化,2015,39(23):152-157.LI Chang-sheng,CAO Juan,ZHANG He.Modeling and analysis for magnetic resonance coupling wireless power transmission systems under influence of non-ferromagnetic metal[J].Automation of Electric Power Systems,2015,39(23):152-157.(in Chinese)
[13]陈琛,黄学良,孙文慧,等.金属障碍物对磁耦合谐振无线电能传输系统的影响[J].电工技术学报,2014,29(9):22-26.CHEN Chen,HUANG Xue-liang,SUN Wen-hui,et al.Impact of metal obstacles on wireless power transmission system based coupled resonance[J].Transactions of China Electrotechnical Society,2014,29(9):22-26.(in Chinese)
[14]杨玉岗,卢进,代少杰.含中继线圈无线电能传输金属障碍物仿真分析[J].计算机仿真,2016,33(1):260-263.YANG Yu-gang,LU Jin,DAI Shao-jie.Analysis of impact upon metal obstacles on wireless power transmission with delay coil[J].Computer Simulation,2016,33(1):260-263.(in Chinese)
[15]雷银照.时谐电磁场解析方法[M].北京:科学出版社,2000.LEI Yin-zhao.Analytical method of time harmonic electromagnetic field[M].Beijing:Science Press,2000.(in Chinese)