一种采用最小电压与最大电流跟踪的IPT系统动态调谐方法  

Dynamic Resonant Compensation Approach Based on Minimum Voltage and Maximum Current Tracking for IPT System

作　　者：麦瑞坤[1] 陆立文 李勇[1] 何正友[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《电工技术学报》2015年第19期32-38,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学青年基金(51307146);铁路总公司科技研究开发计划课题(2014J013-B);中央高校基本科研业务费专项资金(2682015CX021)资助项目

摘　　要：为解决感应电能传输(IPT)系统谐振频率漂移问题,在系统固定工作频率下,分别在发送端与接收端回路加入相控电感电容并联电路;实时检测DC-DC变换器输出直流电压传送给发送端控制器,控制器根据最小电压原则调节发送端回路的等效输出补偿电容值;同时,实时检测接收端线圈电流传送给接收端控制器,控制器根据最大电流原则调节接收端回路的等效输出补偿电容值,最终使得整个IPT系统处于谐振状态。实验结果表明,所提方法有效实现了动态调谐,降低了电源所需容量,提高了系统的传输效率和功率。In order to resolve the problem of frequency drift in the inductive power transfer（ IPT） system,under a fixed frequency condition,the parallel connected switching capacitor-inductor reactors are employed in the sender and the receiver circuits,respectively. The value of the equivalent compensating capacitor is altered in real time in the sender side according to the criteria of minimizing the output voltage of DC-DC converter,which is measured in real time and sent to the sender controller. Similarly,the current of the receiver end is measured and sent to the receiver controller to alter the value of the equivalent compensating capacitor with the criteria of maximizing the receiver current. Then the IPT system can work under the resonant condition by employing the proposed algorithm. The experimental results validate that the proposed method realizes the dynamic frequency tuning,decreases the power capacity,and improve the system efficiency and power.

关 键 词：感应电能传输 动态调谐 最大电流 最小电压 

分 类 号：TM724[电气工程—电力系统及自动化]