高温超导磁体与普通磁体的实验研究

本文从黑箱建模的角度出发,分析高温超导磁悬浮系统和常导磁悬浮系统在稳态悬浮时的动态特性。此外,通过对比实验,还比较了磁悬浮系统稳态悬浮时高温超导磁体与普通磁体的电磁特性异同。研究结果表明,虽然高温超导磁悬浮系统和常导磁悬浮系统动态特性的传递函数模型不同,但从控制的角度看,它们的电磁特性并无明显区别。在系统的工作频段内,高温超导磁体线圈自感应给其电磁特性带来的影响可以忽略。

Experimental Study of HTS Electromagnet and General Electromagnet

By black box modeling,we compare dynamic characteristics of High Temperature Superconducting (HTS) electromagnet based magnetic levitation system with that of general electromagnet based magnetic levitation system when electromagnets are stably sus- pended. Furthermore, we have investigated electromagnetic characteristics of HTS electromagnet and general electromagnet by compari- son experiments. The result of study shows that the transfer function models which describe dynamic characteristics are different, how- ever, from the control engineering point of view, their electromagnetic characteristics are similar. In the frequency bands of magnetic levitation systems, influence on the electromagnetic characteristics due to self- induction of HTS coils can be ignored.