CAJ | 학술논문

针对电器设备、武器系统等应用中存在一个能量发送端同时为多个负载非接触供能的情形，基于磁耦合共振的无线能量传输原理，建立了磁耦合共振“单发双收”理论模型，求解出“单发双收”系统输出总功率的数学计算公式。理论分析发现“单发双收”系统传输特性与“单发单收”性质类似，即当发送线圈和接收线圈距离的耦合系数较大时，系统存在共振频率分叉现象，并随收发端距离的增大，频率分叉现象逐渐消失。当系统存在两个接收端时，共振频率随径向距离的变化而变化，并且两接收端耦合越强，偏移现象越明显。利用 OrCAD 仿真软件和实验手段对系统传输特性进行仿真分析和实验研究，结果显示，实验、仿真结果与理论分析结论相吻合，文中所建磁耦合共振“单发双收”理论模型能准确描述系统传输特性。
침대전기설비、무기계통등응용중존재일개능량발송단동시위다개부재비접촉공능적정형，기우자우합공진적무선능량전수원리，건립료자우합공진“단발쌍수”이론모형，구해출“단발쌍수”계통수출총공솔적수학계산공식。이론분석발현“단발쌍수”계통전수특성여“단발단수”성질유사，즉당발송선권화접수선권거리적우합계수교대시，계통존재공진빈솔분차현상，병수수발단거리적증대，빈솔분차현상축점소실。당계통존재량개접수단시，공진빈솔수경향거리적변화이변화，병차량접수단우합월강，편이현상월명현。이용 OrCAD 방진연건화실험수단대계통전수특성진행방진분석화실험연구，결과현시，실험、방진결과여이론분석결론상문합，문중소건자우합공진“단발쌍수”이론모형능준학묘술계통전수특성。
In order to study on the situation that there is an energy sender to provide energy for multi-loads in electrical equipment and weapons systems applications, the circuit model of wireless power transmission system is established based on the theory of magnetic resonant coupling, and the expression of transmission power and transmission efficiency are derived. Theoretical analysis shows that the transmission characteristics of “single-emission and double-receiving system” is similar to the nature of “single-emission and single receiving system”. Resonance frequency bifurcation was existed in the system when the coupling coefficient between the transmitting and receiving coils is large, and frequency bifurcation phenomena gradually disappears with the distance of the two coils increasing. The resonance frequency is varied with the changes in the radial distance when there are two receiving coils, and the more offset, the more obvious. The transmission characteristics of this system are researched by OrCAD simulation software and experiments. The results show that theoretical analysis is consistent with simulation analysis and experiments, and the theoretical model which is built in the paper can accurately describe the transmission characteristics of the system.