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目前的失超检测的方法多针对超导线圈的直流工作状态。在交流损耗等实验研究及部分电力应用中,超导线圈将工作在交流通流状态。为了保障这种情况下超导线圈的安全,需要进行交流失超检测方法的研究。设计了用于高温超导线圈交流通流的失超检测方法,将桥路交流电压信号转换为直流信号后,对工作在交流通流情况下的超导线圈的失超状态进行判断。通过搭建实验平台进行了相关的实验。实验结果显示,采用这种方法能够有效地对工作在交流情况下的超导线圈进行失超检测。
The current methods of quench detection are mostly directed to the DC working state of superconducting coils. In the experimental study of AC loss and some of the power applications, the superconducting coil will work in the exchange flow state. In order to ensure the safety of the superconducting coil in this situation, the research of AC loss detection method is needed. The quench detection method for AC flow in high temperature superconducting coils is designed. After the bridge AC voltage signal is converted into a DC signal, the quench state of the superconducting coil operating in AC flow is judged. The related experiments were carried out by setting up experimental platform. Experimental results show that this method can effectively detect the quench of superconducting coils under AC conditions.