CAJ | 학술논문

在具有中继线圈的磁谐振耦合无线电能传输系统中，非相邻线圈的交叉耦合有可能对系统的工作状态产生扰动，这通常导致系统传输功率和效率的降低。针对单中继线圈的无线电能传输系统，从其等效电路归一化模型入手，详细分析发射线圈和接收线圈之间的交叉耦合对各回路电流和系统传输功率、效率的影响。给出了交叉耦合效应是否可忽略的判定条件，并提出了一种简便的在各回路中通过附加串联电抗以补偿三线圈(发射—中继—接收)无线电能传输系统交叉耦合效应的方法，通过数值仿真计算和实验证明了该方法的可行性。
재구유중계선권적자해진우합무선전능전수계통중，비상린선권적교차우합유가능대계통적공작상태산생우동，저통상도치계통전수공솔화효솔적강저。침대단중계선권적무선전능전수계통，종기등효전로귀일화모형입수，상세분석발사선권화접수선권지간적교차우합대각회로전류화계통전수공솔、효솔적영향。급출료교차우합효응시부가홀략적판정조건，병제출료일충간편적재각회로중통과부가천련전항이보상삼선권(발사—중계—접수)무선전능전수계통교차우합효응적방법，통과수치방진계산화실험증명료해방법적가행성。
In a magnetic resonance coupling wireless power transmission system (WPT) with relay resonator coils,the cross coupling between nonadjacent coils may disturb the operation status of the system which often leads to reduction in the transmission power and efficiency.For the WPT system with single relay resonator (repeater),by proceeding from the normalized equivalent circuit model,the effects of cross coupling between the transmitter coil and receiving one on the circuit current and the transmission power and efficiency of system are analyzed in detail.The conditions for judging whether the cross coupling is negligible or not are given.Meanwhile a convenient technique of inserting additional series reactance in circuits to make up for the cross coupling effect in the transmitter-repeater-receiver WPT system is proposed and its feasibility is verified via numerical simulation calculations and experiments.