為了確保馬達的生產品質，出廠前的特性量測是必要的，然而高功率的大型馬達在傳統的量測方法上有組裝複雜、對心不易等問題，除了降低量測的效率外，偏心問題更可能導致馬達或量測設備受損，有鑑於此，本研究利用渦電流制動器設計一組非接觸馬達特性量測系統以改善傳統量測上的問題。此外，本研究亦結合印刷電路板技術，藉此量得制動器操作過程中產生的感應電壓，成功實現轉速估測與偏心檢測等應用，並建立一套完整的量測流程。在理論方面，利用等效磁路法建立制動器的數學模型，並將推導結果應用在設計流程中；在模擬分析上，則建立一套系統化的電磁場分析法，其準確度與3D有限元素軟體的模擬結果非常相近，且模擬時間僅需花費數秒鐘即可得到電磁場空間中的磁通分佈、渦電流分佈與轉矩值等結果。最後，根據設計與分析方法，結合量測原理，建立了一套馬達量測平台，驗證非接觸式渦電流動力計應用在馬達特性量測的可行性，結果可做為相關設計與開發之用。

The torque-speed characteristic measurements of electric motors are essential in design and manufacture of motor, and the coupling between motor under test and general dynamometer is the critical issue for high power electric motors. In this thesis, a contactless dynamometer is introduced by the design of a permanent magnetic retarder driven by the eddy-current, which has advantages in terms of reduction of vibration, friction, abrasion and without driven power. A theoretical model and design method are derived. In addition, an analytical method is introduced to analyze the design model. By controlling the gap of the magnetic retarder, the torque-speed characteristics of the motor under test can be measured. The experimental results showed that the maximum measuring error resulting from the presented approach can be reached within 6.48%, compared to that of using the general dynamometer.

[1]A. Wallace, A. von Jouanne, R. Jeffiyes, E. Matheson, X. Z. Zhou, "Comparison Testing of an Adjustable-Speed Permanent-Magnet Eddy-Current Coupling," Pulp and Paper Industry Technical Conference, Atlanta, USA, pp.73-78,2000.
[2]A. Wallace, A. von Jouanne, "Industrial Speed Control: Are PM Couplings an Alternative to VFDs?," IEEE Industry Applications Magazine, Vol.7, pp. 57-63, 2001.
[3]A. Canova, B. Vusini, "Design of Axial Eddy-Current Couplers," Industry Applications, IEEE Transactions on, vol.39, no.3, pp.725,733, May-June 2003.
[4]A. Canova, B. Vusini, "Analytical Modeling of Rotating Eddy-Current Couplers," Magnetics, IEEE Transactions on, vol.41, no.1, pp.24,35, Jan. 2005.
[5]A. Baschirotto, E. Dallago, P. Malcovati, M. Marchesi, G. Venchi, "Development and Comparative Analysis of Fluxgate Magnetic Sensor Structures in PCB Technology," Magnetics, IEEE Transactions on, vol.42, no.6, pp.1670,1680, June 2006.
[6]B. Lequesne, Liu Buyun, T. W. Nehl, "Eddy-Current Machines with Permanent Magnets and Solid Rotors," Industry Applications, IEEE Transactions on, vol.33, no.5, pp.1289,1294, Sep/Oct 1997.
[7]D. Dinulovic, D. Hermann, J. Fluegge, H. H. Gatzen, "Development of a Linear Micro-Inductosyn Sensor," Magnetics, IEEE Transactions on, vol.42, no.10, pp.2830,2832, Oct. 2006.
[8]Flux Drive，http://www.fluxdrive.com/。
[9]H.K. Razavi, M.U. Lamperth, “Eddy-Current Coupling with Slotted Conductor Disk,” Magnetics, IEEE Transactions on, Vol.42, No.3, pp. 405-410, March 2006.
[10]IEEE Guide Test Procedures for Direct-Current Machines, ANSI/IEEE Std 113-1985.
[11]J.D. Edwards, B.V. Jayawant, W.R.C Dawson, D. T. Wright, "Permanent-Magnet Linear Eddy-Current Brake with A Nonmagnetic Reaction Plate," IEE Proceedings, Electric Power Applications, vol.146, no.6, pp.627,631, Nov 1999.
[12]J. F. Gieras, R. J. Wang, M. J. Kamper, "Axial Flux Permanent Magnet Brushless Machines," Kluwer Academic Publishers, 2004.
[13]J. Wang, H. Lin, S. Fang, Y. Huang, "A General Analytical Model of Permanent Magnet Eddy Current Couplings," Magnetics, IEEE Transactions on, vol.50, no.1, pp.1,9, Jan. 2014.
[14]Magnetic Technologies，http://www.magnetictech.com/。
[15]Magnadrive，http://www.magnadrive.com/。
[16]P. D. Pfister, Y. Perriard, "Slotless Permanent-Magnet Machines: General Analytical Magnetic Field Calculation," Magnetics, IEEE Transactions on, vol.47, no.6, pp.1739,1752, June 2011.
[17]S. Duric, L. Nad, B. Biberdzic, M. Damnjanovic, L. Zivanov, "Planar Inductive Sensor for Small Displacement," MIEL 2008. 26th International Conference on Microelectronics, vol., no., pp.345,348, 11-14 May 2008.
[18]T. W. Nehl and B. Lequesne, “ Nonlinear Two-Dimensional Finite Element Modeling of Permanent Magnet Eddy Current Couplings and Brakes, ” Magnetics, IEEE Transactions on, Vol. 30, No. 5, September 1994.
[19]Telma，http://www.telma.com/。
[20]Z. J. Liu, A. Vourdas, K. J. Binns, "Magnetic Field and Eddy Current Losses in Linear and Rotating Permanent Magnet Machines with a Large Number of Poles," Science, Measurement and Technology, IEE Proceedings A , vol.138, no.6, pp.289,294, Nov 1991.
[21]李碩晉，無動力計永磁直流馬達特性量測，國立成功大學機械工程學系碩士論文，2008。
[22]吳建諭，永磁馬達特性快速檢測系統設計，國立成功大學機械工程學系碩士論文，2010。
[23]邱奎元、王聖禾、蔡明祺，適用於高功率馬達之渦電流負載型動力計設計與分析，機械月刊第465期，2014。
[24]茆尚勳，直驅式跑步機用直流無刷馬達之設計，國立成功大學機械工程學系碩士論文，2002。
[25]麥格納電能，http://www.hack-db.com/cgi-sys/suspendedpage.cgi。
[26]游盛安，軸向式磁性聯軸器應用於調速之設計與分析，國立成功大學機械工程學系碩士論文，2012。
[27]經濟部能源局，www.moeaboe.gov.tw/。
[28]中國海洋大學物理實驗教學中心， it.ouc.edu.cn/phylab/。
[29]王順忠、陳秋麟，電機機械基本原理，東華書局股份有限公司，2004。