磁耦合式无线输电（inductively coupled power trasfer, ICPT）系统近年来被广泛应用于轨道交通、航天航空、医疗设备等各个领域。针对应用于医学断层扫描（computed tomography, CT）设备中的磁耦合结构，为满足其在长时间低功率稳定运行和瞬时高功率输出的同时，实现信息采集并进行实时反馈的实际需求，提出了一种基于多端磁耦合结构与正交频分复用（orthogonal frequency division multiplexing, OFDM）技术相结合的无线输电系统信能同步传输技术。首先，通过分析多端磁耦合结构较传统单端结构，表明其具有更加优良的传输性能，并通过仿真验证了其能量传输效果；其次，基于实际需求，利用OFDM技术将信号与能量相结合，实现信能的同步传输；最后，通过在MATLAB/Simulink仿真平台上搭建实验模型，验证了所提技术不仅提高了能量传输效率，同时实现了信号的低误码率同步传输，与传统无线输电系统相比，其能量传输效率提高了10%，且信号误码率降低了3.5%，验证了所提技术的有效性。

Inductively coupled power transfer (ICPT) system has been extensively applied in various domains such as rail transportation, aerospace, medical equipment, etc. in recent years. Regarding the magnetic coupling structure utilized in medical computed tomography (CT) equipment, to fulfill the practical requirements of long-term low-power stable operation and instantaneous high-power output, while achieving information acquisition and real-time feedback, a synchronous information and energy transmission technology for ICPT system based on the combination of multi-terminal magnetic coupling structure and orthogonal frequency division multiplexing(OFDM) technology was proposed. Firstly, by analyzing the multi terminal magnetic coupling structure compared to the traditional single terminal structure, it is shown that it has better transmission performance, and its energy transmission effect has been verified through simulation. Secondly, based on the actual demands, the OFDM technology was employed to combine signals and energy, realizing the synchronous transmission of information and energy. Finally, by establishing an experimental model on the MATLAB/Simulink simulation platform, it is verified that the proposed technology not only enhances the energy transmission efficiency but also enables the synchronous transmission of signals with a low bit error rate. Compared with the traditional wireless power transfer systems, its energy transmission efficiency is increased by 10%, and the signal bit error rate is reduced by 3.5%, validating the effectiveness of the proposed technology.