CAJ | 학술논문

为分析无线能量传输的效率问题,利用电磁仿真软件 HFSS,建立了单个线圈模型,利用单个谐振线圈模型构建了基于磁耦合谐振的能量传输系统。通过S 参数曲线直观反映能量传输效率的变化规律,验证了磁耦合谐振式能量传输效率远远大于一般的感应耦合。通过改变模型中两线圈的相对位置,分析了线圈距离、夹角等因素对能量传输效率的影响,依据效率变化曲线,直观展示了频率分裂现象。仿真和分析表明,为实现系统的高效率、远距离能量传输,应尽量减小收发线圈的角度和线圈的错位偏移量,该系统为设计和优化无线电能传输系统提供了一种理论分析方法。
위분석무선능량전수적효솔문제,이용전자방진연건 HFSS,건립료단개선권모형,이용단개해진선권모형구건료기우자우합해진적능량전수계통。통과S 삼수곡선직관반영능량전수효솔적변화규률,험증료자우합해진식능량전수효솔원원대우일반적감응우합。통과개변모형중량선권적상대위치,분석료선권거리、협각등인소대능량전수효솔적영향,의거효솔변화곡선,직관전시료빈솔분렬현상。방진화분석표명,위실현계통적고효솔、원거리능량전수,응진량감소수발선권적각도화선권적착위편이량,해계통위설계화우화무선전능전수계통제공료일충이론분석방법。
To analyze the efficiency of wireless power transfer,the single coil model was built using the e-lectromagnetic simulation software HFSS (high frequency structure simulator),and the power transfer system based on magnetic coupling resonance with the single resonant coil model was established.The change regulation of power transfer efficiency was reflected intuitively through the S parameter curves.It is verified that magnetic resonant power transfer efficiency is much higher than that of the general induction coupling.By changing the relative position of the two coils,the relationship between the power transfer ef-ficiency and the relative position of the two coils such as distance,angel,etc was analyzed.On the basis of the efficiency curve,the phenomenon of frequency splitting was shown intuitively.Simulation shows that the angle of the coils and offset distance should be reduced to realize the high efficiency and long distance transmission.The study provides a theoretical analysis method for the design and optimization of wireless power transfer system.