高温超导磁体非接触补偿供电可行性研究

高温超导磁浮列车运行在高速状态,要受到环境振动、电磁激扰、轨道不平顺等问题,由此带来的运行损耗与高温超导接头电阻损耗等自身损耗相互叠加,使得高温超导磁体难以实现恒流运行.因此,本文基于近年来快速发展的非接触传能技术,提出了一种无漏热高温超导磁体非接触补偿供电方案,从理论上建立等效电路模型进行阻抗匹配,确定系统最优参数,同时利用搭建的实验测试平台研究了不同传输间距、不同负载的供电效率,证实了非接触传能技术用于现代轨道交通中高温超导磁体供电补偿的可行性.

Feasibility Study of Contactless Power Supply Compensation for High Temperature Superconducting Magnet

High temperature superconducting (HTS) maglev train operates at high speed, which is subject to environmental vibration, electromagnetic disturbance, track irregularities and so on. The operation losses resulted from these reasons together with the joint resistance loss, would be quite difficult for HTS maglev train to achieve persistent current operation. Therefore, based on the emerging technology of contactless power transfer in recent years, a contact-free power compensation scheme without any heat leakage for HTS magnets is proposed in this paper. The equivalent circuit model is established theoretically for impedance match in order to determine the optimal parameters of the system. At the same time, the experimental test platform is used to study the efficiency of power supply under different transmission distances and loads. These theoretical and experimental studies strongly confirmed the feasibility of contactless power transfer technology for HTS magnet power supply compensation in modern rail transit.