S-LCC型感应耦合式无线电能传输系统建模及特性分析
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摘要
传统接触式电能传输方式存在漏电、磨损、火花放电等各种问题,为此,建立了一种以串联-LCC(seriesLCC,S-LCC)型补偿为核心的感应耦合式无线电能传输系统的结构模型。首先,利用电路理论及互感等效理论计算出系统的输出功率与传输效率表达式,分析了其与线圈的耦合系数、负载大小的联系;其次,考虑了松耦合变压器寄生电阻,推导出系统在恒流模式下的工作条件,计算出此时系统输出功率与传输效率的表达式,并通过MATLAB绘制出松耦合变压器寄生电阻与系统恒流输出特性的关系图;最后,搭建实验平台进行实验分析。实验结果验证了理论计算的正确性,证明了S-LCC型补偿系统具有一定的恒流输出特性。
There are various problems in traditional contact power transmission modes such as electric leakage,abrasion,spark discharge,and so on.Therefore,this paper establishes a kind of structure model for the inductively coupled wireless power transfer(ICPT)system taking series-LCC(S-LCC)as the core.It firstly employs the circuit theory and the mutual inductance equivalent theory to work out expressions of output power and transmission efficiency of the system and analyzes relations with coupling coefficients and load of the coils.Secondly,in the premise of considering parasitic resistance of the loosely coupled transformer,it derives working condition of the system under the constant current mode.The expression of the system output power and transmission efficiency at this time is calculated,and the relationship between the parasitic resistance of the loosely coupled transformer and the constant current output characteristics of the system is drawn by MATLAB.Finally,it makes test analysis on the experimental platform.The test results verify accuracy of theoretical calculation and prove the S-LCC compensated system is provided with certain constant current output characteristic.
There are various problems in traditional contact power transmission modes such as electric leakage,abrasion,spark discharge,and so on.Therefore,this paper establishes a kind of structure model for the inductively coupled wireless power transfer(ICPT)system taking series-LCC(S-LCC)as the core.It firstly employs the circuit theory and the mutual inductance equivalent theory to work out expressions of output power and transmission efficiency of the system and analyzes relations with coupling coefficients and load of the coils.Secondly,in the premise of considering parasitic resistance of the loosely coupled transformer,it derives working condition of the system under the constant current mode.The expression of the system output power and transmission efficiency at this time is calculated,and the relationship between the parasitic resistance of the loosely coupled transformer and the constant current output characteristics of the system is drawn by MATLAB.Finally,it makes test analysis on the experimental platform.The test results verify accuracy of theoretical calculation and prove the S-LCC compensated system is provided with certain constant current output characteristic.
引文
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[14]赵靖英,周思诺,崔玉龙,等.LCL型磁耦合谐振式无线电能传输系统的设计方法与实现[J].高电压技术,2018,44(4):1-7.ZHAO Jingying,ZHOU Sinuo,CUI Yulong,et al.Research and implementation on design method of LCL type magnetically-coupled resonant wireless power transfer system[J].High Voltage Engineering,2018,44(4):1-7.
[15]王懿杰,姚友素,刘晓胜,等.无线电能传输用S/CLC补偿拓扑分析[J].电工技术学报,2017,32(22):34-41.WANG Yijie,YAO Yousu,LIU Xiaosheng,et al.Analysis on S/CLC compensation topology for wireless power transfer[J].Transactions of China Electrotechnical Society,2017,32(22):34-41.
[2]张波,疏许健,黄润鸿.感应和谐振无线电能传输技术的发展[J].电工技术学报,2017,32(18):3-17.ZHANG Bo,SHU Xujian,HUANG Runhong.The development of inductive and resonant wireless power transfer technology[J].Transactions of China Electrotechnical Society,2017,32(18):3-17.
[3]国玉刚,李超群,崔纳新.基于LCL-S型ICPT系统的恒流输出分析与控制[J].电源学报,2017,15(2):109-114.GUO Yugang,LI Chaoqun,CUI Naxin.Analysis and control of constant output current based on LCL-S type ICPT system[J].Journal of Power Supply,2017,15(2):109-114.
[4]卢伟国,夏艳,李惠荣,等.E类源磁谐振无线驱动LED系统的恒流设计[J].电机与控制学报,2018,22(1):1-7.LU Weiguo,XIA Yan,LI Huirong,et al.Constant-current design for class E powered magnetic resonance wireless power transmission LED system[J].Electric Machines and Control,2018,22(1):1-7.
[5]梁阗.基于LCC/S补偿拓扑的感应耦合无线电能传输研究[D].哈尔滨:哈尔滨工业大学,2017.
[6]李超群.基于LCC-串联谐振的磁耦合无线电能传输系统研究[D].济南:山东大学,2017.
[7]范兴明,贾二炬,张鑫.MCR-WPT系统负载特性分析及线圈参数设计[J].高压电器,2018,54(1):29-34.FAN Xingming,JIA Erju,ZHANG Xin.Study of load characteristics and design for coil’s parameters in magneticallycoupled resonant wireless power transmission system[J].High Voltage Apparatus,2018,54(1):29-34.
[8]苏玉刚,任丹,谢诗云,等.基于Π-S复合谐振的ECPT系统及其调谐控制[J].电工技术学报,2018,33(4):781-790.SU Yugang,REN Dan,XIE Shiyun,et al.Electric-field coupled power transfer system withΠ-S composite resonant network and its tuning control[J].Transactions of China Electrotechnical Society,2018,33(4):781-790.
[9]夏晨阳,陈国平,任思源,等.采用新型负载恒流供电复合谐振网络的无线电能传输系统[J].电力系统自动化,2017,41(2):46-52.XIA Chenyang,CHEN Guoping,REN Siyuan,et al.Wireless power transfer system using composite resonant network for constant-current power supply of load[J].Automation of Electric Power Systems,2017,41(2):46-52.
[10]孙跃,张欢,陶维,等.基于变结构模式的宽负载恒压感应耦合电能传输系统[J].电力系统自动化,2016,40(5):109-114.SUN Yue,ZHANG Huan,TAO Wei,et al.Constant-voltage inductively coupled power transfer system with wide load range based on variable structure mode[J].Automation of Electric Power Systems,2016,40(5):109-114.
[11]宋凯,李振杰,杜志江,等.变负载无线充电系统的恒流充电技术[J].电工技术学报,2017,32(13):130-136.SONG Kai,LI Zhenjie,DU Zhijiang,et al.Constant current charging technology for variable load wireless charging system[J].Transactions of China Electrotechnical Society,2017,32(13):130-136.
[12]沈悦,姜志华,颜国正,等.微型胃肠道机器人钳位机构和无线能量接收线圈优化[J].上海交通大学学报,2018,52(1):39-44.SHEN Yue,JIANG Zhihua,YAN Guozheng,et al.Optimization and realization of wireless capsule robot[J].Journal of Shanghai Jiaotong University,2018,52(1):39-44.
[13]侯永全,夏晨阳,郭祥,等.基于SiC的无线电能传输系统设计与分析[J].广东电力,2017,30(12):43-47.HOU Yongquan,XIA Chenyang,GUO Xiang,et al.Design and analysis on wireless power transfer system based on SiC[J].Guangdong Electric Power,2017,30(12):43-47.
[14]赵靖英,周思诺,崔玉龙,等.LCL型磁耦合谐振式无线电能传输系统的设计方法与实现[J].高电压技术,2018,44(4):1-7.ZHAO Jingying,ZHOU Sinuo,CUI Yulong,et al.Research and implementation on design method of LCL type magnetically-coupled resonant wireless power transfer system[J].High Voltage Engineering,2018,44(4):1-7.
[15]王懿杰,姚友素,刘晓胜,等.无线电能传输用S/CLC补偿拓扑分析[J].电工技术学报,2017,32(22):34-41.WANG Yijie,YAO Yousu,LIU Xiaosheng,et al.Analysis on S/CLC compensation topology for wireless power transfer[J].Transactions of China Electrotechnical Society,2017,32(22):34-41.