高溫超導(dǎo)磁體與普通磁體的實驗研究

本文從黑箱建模的角度出發(fā)，分析高溫超導(dǎo)磁懸浮系統(tǒng)和常導(dǎo)磁懸浮系統(tǒng)在穩(wěn)態(tài)懸浮
時的動態(tài)特性。此外，通過對比實驗，還比較了磁懸浮系統(tǒng)穩(wěn)態(tài)懸浮時高溫超導(dǎo)磁體與普通磁體的電磁特性異同。研究結(jié)果表明，雖然高溫超導(dǎo)磁懸浮系統(tǒng)和常導(dǎo)磁懸浮系統(tǒng)動態(tài)特性的傳遞函數(shù)模型不同，但從控制的角度看，它們的電磁特性并無明顯區(qū)別。在系統(tǒng)的工作頻段內(nèi)，高溫超導(dǎo)磁體線圈自感應(yīng)給其電磁特性帶來的影響可以忽略。
關(guān)鍵詞：磁懸浮系統(tǒng)；高溫超導(dǎo)磁體；動態(tài)特性；電磁特性
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