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高温超导磁体与普通磁体的实验研究
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2009-07-16
李鸿洋
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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。
关键词：磁悬浮系统；高温超导磁体；动态特性；电磁特性
Abstract: 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 suspended.
Furthermore, we have investigated electromagnetic characteristics of HTS electromagnet and
general electromagnet by comparison experiments. The result of study shows that the transfer
function models which describe dynamic characteristics are different, however, 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.
Key words: magnetic levitation system; HTS electromagnet; dynamic characteristics;
electromagnetic characteristics
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。
关键词：磁悬浮系统；高温超导磁体；动态特性；电磁特性
Abstract: 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 suspended.
Furthermore, we have investigated electromagnetic characteristics of HTS electromagnet and
general electromagnet by comparison experiments. The result of study shows that the transfer
function models which describe dynamic characteristics are different, however, 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.
Key words: magnetic levitation system; HTS electromagnet; dynamic characteristics;
electromagnetic characteristics
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