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Maximum efficiency tracking method based on parameter detection for ICPT systems
Journal of Power Electronics ( IF 1.4 ) Pub Date : 2021-05-31 , DOI: 10.1007/s43236-021-00270-4
Xuerui Sheng , Liming Shi

Efficiency is very important in inductively coupled power transfer (ICPT) systems. To maintain a high efficiency, a maximum efficiency tracking (MET) method based on parameter detection is proposed in the paper. The basic idea is to convert the load value to the active short-circuit (ASC) time interval for the semi-controlled rectifier on the pick-up side. The ASC time interval and the transmitting coil current are detected to calculate the load and mutual inductance values on the transmitting side. According to the detected parameters, the output voltage of the high-frequency inverter that makes the system run at its maximum efficiency can be calculated and controlled. In addition, the load voltage is controlled by the high-frequency rectifier on the pick-up side. Simulation and experimental results show that this method can quickly achieve MET without wireless communication. Furthermore, the difference between the experimental maximum efficiency and the theoretical maximum efficiency is no more than 2%.



中文翻译:

基于参数检测的ICPT系统最大效率跟踪方法

效率在电感耦合功率传输 (ICPT) 系统中非常重要。为了保持高效率,本文提出了一种基于参数检测的最大效率跟踪(MET)方法。基本思想是将负载值转换为拾取侧半控整流器的有源短路 (ASC) 时间间隔。检测 ASC 时间间隔和发射线圈电流,计算发射侧的负载和互感值。根据检测到的参数,可以计算和控制使系统以最大效率运行的高频逆变器的输出电压。此外,负载电压由拾取侧的高频整流器控制。仿真和实验结果表明,该方法无需无线通信即可快速实现MET。此外,实验最大效率与理论最大效率之间的差异不超过2%。

更新日期:2021-05-31
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