臺灣博碩士論文加值系統

磁浮軸承能提供高轉速旋轉設備使用，而其所需之控制設備比其他高速軸承更為簡易且易於控制，使得磁浮軸承成為學術界及工業界研究及應用的明日之星。
本論文使用之磁浮平台經特殊設計，只需經由單一自由度之控制，即可達成穩定旋轉，然磁浮系統為一非線性且極度不穩定系統須經由響應良好之控制方式，方能使其穩定旋轉。本論文主要研究為混成式永久磁鐵之零電流控制，從磁浮原理、軸承結構，簡易類比PD控制器達成磁浮系統初步轉控制，進而以PC-Based 為基礎控制達到『零功率消耗』及『位置控制』。

Magnetic bearings employed in high-speed rotating equipments are easier to control than other active bearings. It has prevailed the field for factory and academics attention and interests in recent years.
This thesis presents an investigation of the controlled-PM Maglev system for the one dimensional magnetic bearing. This research focuses on an active magnetic bearing with extremely zero-current consumption and well gap tracking. A traditional analog PD controller is used to levitate the bearing. Zero-current control and gap- tracking control are realized a PC with an AD/DA card by used.

中文摘要…………………………………………………………………Ⅱ
英文摘要…………………………………………………………………Ⅲ
致謝銘……………………………………………………………………Ⅳ
目錄………………………………………………………………………Ⅴ
第一章 簡介 1
第二章 磁路結構及數學模式之推導 3
2.1 磁路結構 3
2.1.1 永久磁鐵在零電流狀態之磁路分析 3
2.1.2 U型磁心(U-Core)之磁路分析 8
2.1.3 最大負載改變時電磁鐵之磁路分析 9
2.2 磁浮軸承吸力參數 10
2.3 磁浮軸承動態方程式推導及目標受控體參數求取 13
第三章 混成式磁浮軸承細部設計及控制器參數推導 21
3.1 混成式磁鐵設計需考慮下列各點 21
3.2 控制器說明 21
3.3 PID控制器 22
3.4 PC-BASED為基礎之數位PI控制 25
第四章 系統架構 30
4.1 PC個人電腦 30
4.2 單一自由度磁浮軸承 31
4.3 電源電路 32
4.4 CNY-70光感測器 32
4.5 AD/DA介面電路 33
4.6 磁浮軸承重置電路 35
4.7 PC-818L資料擷取介面卡 36
第五章 零電流控制之實作及結果 37
5.1 PD控制 37
5.2 PD+PI控制 38
5.3 PD控制增加負載 39
5.4 控制信號輸出波形 40
5.5 PI補償電流輸出波形 41
第六章 結論 42
6.1 混成磁鐵與電磁鐵之比較 42
6.2 磁浮軸承之分類 42
6.3 VSS控制器與PID控制器之比較 42
6.4 類比與數位控制器之比較 43
6.5 磁浮之應用 43
6.7 磁浮運輸 43
6.8 旋轉軸承 44
附錄 MB-E1操作手冊 45
參考文獻 56

[1]S.L. Chen and C. T. Hsu,“Optimal design of a three-pole active magnetic bearing”, IEEE Trans. on Magnetics. Vol.38, no. 5, pp. 3458-3466, 2002.
[2]A. F. Sammells and K. W. Semkow,“Satellite power using a magnetically suspended flywheel stack” Journal of power Sources, Vol.22, no.3, pp. 301-311, Mar., 1988.
[3]David L. Atherton,“Maglev using permanent magnets”, IEEE Trans. on Magnetics, VOL. MAG-16, no.1, pp146-148, January, 1980.
[4] Y. K Tzeng,“An electromagnetic levitation system with extremely low power consumption”, M. S. Thesis NCHU, Taiwan, 1992.
[5] Y. K Tzeng,“A controlled-PM maglev system for transportation”, PH. D. Thesis, NCHU, Taiwan, 1995.
[6]Y. H. Kim, K. M. Kim, and J. Lee,“Zero power control with load observer in Ccontrolled-PM levitation” IEEE Trans. on Magnetics, VOL. 37, no.4, pp2851-2854,July, 2001.
[7] Y.K. Tzeng and T. C. Wang,“Dynamic analysis of the maglev system using controlled-PM electromagnets and robust zero-power-control strategy”, in IEEE INTERMAG’95, pp4211-4213, San Antonio, Texas, USA, April 18-21, 1995.
[8] Y.K. Tzeng and T. C. Wang,“Optimal design of electromagnetic levitation with permanent and plectro magnets”, IEEE Trans. on Magnetics, VOL. 30, no. 6, pp4731-4733, November, 1994.
[9] T.C. Wang and Y.K. Tzeng,“A new electromagnetic levitation system for rapid transit and high speed transportation”, IEEE Trans. on Magnetics, VOL. 30, no. 6, pp4734-4736, November, 1994.
[10]M. Morishita and T. Azukizawa and T. Yokoyama,“A new maglev system for magnetictically levitated carrier system”, IEEE Trans. On Vehicular Technology, vol.38, no.4, pp.230-236,Nov., 1989.
[11]T. SATO and Y. TANNO,“Magnetic bearing having PID controller and discontinuous controller”
[12] S. Sivrioglu and K. Nonami,“Sliding mode control with time-varying hhperplane for AMB system” IEEE Trans, On Mechatronics, Vol. 3, no.1, pp.51-59,MARCH 1998.
[13]M. Morishita and T. Azukizawa,“Zero power control of electromagnet levitation system” Electrical Engineering in japan, vol.108, No.3, pp.111-120,1988.
[14]C.H. Wu and C.T. Lin,“Pc-based magnetic bearing system using FUZZY control” M.S. Thesis NCTU, Taiwan, 1992.