基于空间两线圈互感及铁磁芯线圈自感的计算方法，对微机电系统能量接收线圈二维正交绕组的接收性能进行了研究，分析了改变接收线圈位置和夹角以及有铁磁芯和无铁磁芯情况对系统耦合系数的影响．通过仿真和实验对理论分析进行验证，发现：二维正交绕组在不同的姿态下均可以得到较好的互补效果，能够防止传输效率过低；铁磁芯可显著增强系统的耦合性能．根据系统微型化的要求，选用合适的电子元器件，对后续整流电路进行了设计，研制了微型整流电路．利用自行设计的微机电系统进行的实验表明，文中设计的二维无线能量传输系统的效率及稳定性可以满足实际需求．

Based on the calculation methods of both the mutual inductance between two air-core coils and the self inductance of a ferrite-core coil, the energy-receiving performances of the two-dimension orthogonal windings of the coil in micro electromeehanieal systems （MEMS） are investigated. Then, the influences of the position and the angle of the energy-receiving coil as well as the ferrite core on the coupling coefficient of MEMS are analyzed. The results of theoretical analysis are finally verified through simulations and experiments. It is found that the two-dimen- sion orthogonal windings can compensate each other at different attitudes and prevent low transmission efficiency, and that the ferrite core significantly enhances the coupling ability of MEMS. In addition, a micro rectifying circuit meeting the requirement of miniaturization is designed and fabricated by selecting suitable electronic components. Experimental results on the self-developed MEMS using the fabricated circuit indicate that the efficiency and stability of the proposed wireless energy transmission system meet the practical requirements well.