CAJ | 학술논문

针对无线电能传输系统中传输功率小、传输效率低和传输距离短的问题，提出了一种增加中继线圈的新结构。基于磁耦合谐振式无线电能传输系统的工作原理，为增强系统耦合性能，在电源线圈与负载线圈中增加了中继线圈，并分析了其系统模型及传输功率公式。通过ANSYS有限元分析软件对不同数量中继线圈的实验系统进行电磁仿真，绘制了不同距离的磁感应强度空间分布图。最后，搭建了一个磁耦合谐振式无线电能传输实验台，根据负载功率变化与线圈距离的关系，验证了数值仿真的正确性。仿真和实验结果表明：增加中继线圈的数量能够有效地增强空间磁感应强度，对提高传输效率和增加传输距离有显著作用。
침대무선전능전수계통중전수공솔소、전수효솔저화전수거리단적문제，제출료일충증가중계선권적신결구。기우자우합해진식무선전능전수계통적공작원리，위증강계통우합성능，재전원선권여부재선권중증가료중계선권，병분석료기계통모형급전수공솔공식。통과ANSYS유한원분석연건대불동수량중계선권적실험계통진행전자방진，회제료불동거리적자감응강도공간분포도。최후，탑건료일개자우합해진식무선전능전수실험태，근거부재공솔변화여선권거리적관계，험증료수치방진적정학성。방진화실험결과표명：증가중계선권적수량능구유효지증강공간자감응강도，대제고전수효솔화증가전수거리유현저작용。
For the problem of low transmission power level, low transmission efficiency and short transmis-sion distance in wireless power transmission system, the new structure to increase the repeating coil was presented. Based on the principles of wireless power transmission system via magnetic resonance cou-pling, to enhance the coupling degree of system, the repeating coils were placed between the transmitting coil and receiving coil. And the system model and transmission power formula were analyzed. The elec-tromagnetic experiment system under different conditions with repeating coils were simulated by ANSYS finite element software. The spatial distribution patterns of magnetic induction intensity at different dis-tances were plotted. Finally, an experimental test-bed was established. According to the relationship be-tween the power change of load and the distance of coils, the correctness of the simulation is verified. Simulation and experimental results show that increasing the amount of repeating coil can effectively en-hance the space magnetic induction intensity, which has significant effect on improving the transmission efficiency and lengthening transmission distance.