基于半控整流电路的无线电能传输技术的研究
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摘要
提出了一种无线电能传输最大效率恒压输出技术,该技术采用半控整流电路替代接收回路常用的二极管整流电路,并利用Boost电路调节输出电压。通过同时在线调节半控整流电路和Boost电路的占空比,实现系统在负载和耦合线圈间互感变化时保持最大效率下的恒压输出。实验结果验证了所提技术的可行性和理论分析的正确性。
This paper proposed a technique of maximum efficiency and constant voltage output for wireless power transfer system. A semi-bridge rectifier is used to replace the common diode rectifier on the receiver side, and a Boost circuit is adopted to regulate the system output voltage. The duty cycles of the semi-bridge rectifier and the Boost circuit are online adjusted so that the wireless power transfer system can keep both maximum efficiency and constant voltage output when load varies and mutual inductance of coupled coils changes. Experimental results verified the feasibility of the proposed technique and the correctness of the theoretical analysis.
This paper proposed a technique of maximum efficiency and constant voltage output for wireless power transfer system. A semi-bridge rectifier is used to replace the common diode rectifier on the receiver side, and a Boost circuit is adopted to regulate the system output voltage. The duty cycles of the semi-bridge rectifier and the Boost circuit are online adjusted so that the wireless power transfer system can keep both maximum efficiency and constant voltage output when load varies and mutual inductance of coupled coils changes. Experimental results verified the feasibility of the proposed technique and the correctness of the theoretical analysis.
引文
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[2]尹成科,徐博翎.植入式人工心脏无线电能传输研究进展[J].电工技术学报,2015,30(19):103-109.
[3]张剑韬,朱春波,陈清泉.应用于无尾家电的非接触式无线能量传输技术[J].电工技术学报,2014,29(9):33-37.
[4]麦瑞坤,李勇,何正友,等.无线电能传输技术及其在轨道交通中研究进展[J].西南交通大学学报,2016,51(3):446-461.
[5]刘闯,郭赢,葛树坤,等.基于双LCL谐振补偿的电动汽车无线充电系统特性分析与实验验证[J].电工技术学报,2015,30(15):127-135.
[6]HATA K,IMURA T,HORI Y.Efficiency maximization of wireless power transfer based on simultaneous estimation of primary voltage and mutual inductance using secondary-side information[C].IECON 2016-42nd Annual Conference of the IEEE Industrial Electronics Society,2016:4493-4498.
[7]刘闯,郭赢,葛树昆,等.具备恒压特性的SP/S感应式无线电能传输系统[J].电工技术学报,2016,31(13):149-154.
[8]LI Z,SONG K,JIANG J,et al.Constant current charging and maximum efficiency tracking control scheme for supercapacitor wireless charging[J].IEEE Transactions on Power Electronics,2018:1-13.
[9]傅文珍,张波,丘东元,等.自谐振线圈耦合式电能无线传输的最大效率分析与设计[J].中国电机工程学报,2009,29(18):21-26.
[10]BERGER A,AGOSTINELLI M,VESTI S,et al.A wireless charging system applying phase-shift and amplitude control to maximize efficiency and extractable power[J].IEEETransactions on Power Electronics,2015,30(11):6338-6348.
[11]KOBAYASHI D,IMURA T,HORI Y.Real-time coupling coefficient estimation and maximum efficiency control on dynamic wireless power transfer for electric vehicles[C].IEEE PELS Workshop on Emerging Technologies:Wireless Power,2015:1-6.
[12]LI H,LI J,WANG K,et al.A maximum efficiency point tracking control scheme for wireless power transfer systems using magnetic resonant coupling[J].IEEE Transactions on Power Electronics,2015,30(7):3998-4008.
[13]ZHONG W X,HUI S Y R.Maximum energy efficiency tracking for wireless power transfer systems[J].IEEETransactions on Power Electronics,2015,30(7):4025-4034.
[14]YEO T D,KWON D S,KHANG S T,et al.Design of maximum efficiency tracking control scheme for closedloop wireless power charging system employing series resonant tank[J].IEEE Transactions on Power Electronics,2017,32(1):471-478.
[15]麦瑞坤,刘野然,陈阳.基于最优等效负载控制的感应电能传输系统效率优化方法研究[J].中国电机工程学报,2016,36(23):6468-6475.