盤式發電機與其磁控裝置之應用

Application of disc type generator and its electromagnetic breaking apparatus

王瑞賢(Jui-shian Wang)

指導教授 ： 呂虹慶

大同大學/電機資訊學院/電機工程學系所/碩士(2012年)

摘要

摘要

傳統自發電健身腳踏車是將阻尼系統配合發電機的外轉子飛輪作為導磁體，配合外部電磁鐵作磁力來源，經由控制電磁鐵的電流大小，使其對飛輪產生電磁制動，來達到阻尼的效果。本文主旨將磁控裝置應用在盤式無鐵心發電機上，此軸向式發電機架構具有高效率及高功率密度重量比，並改善傳統式徑向式發電機鐵心發熱和啟動轉矩較大之特性，藉此延長發電機使用之壽命。由於發電機不使用鐵心，會使得發電機重量得以減輕，達到輕量化的效果。
本文中，建立一含電磁式煞車裝置之盤式無鐵心發電機系統，整體系統架構包含機械動力機構、發電機、電磁煞車裝置及電源轉換器。藉由外部之機械動力，產生電能來供給電磁煞車裝置及控制板所需之電能。最後，並以實作之軟硬體驗證所提出之盤式發電機和其磁控裝置系統之可行性。

關鍵字

電磁煞車 ； 無鐵心 ； 軸向磁通 ； 盤式

並列摘要

ABSTRACT

Traditional self-souring fitness bike takes rotor of generator as magnetism conductor and outside electromagnet is the source of magnetic force. Its reluctance is that changes the current on electromagnet to produce magnetic force to stop flywheel. Such the coreless structure of the generator has high efficiency and high power weight ratio and it can improve the characteristics of overheating of the core in the traditional generator and decrease the starting torque. Then, the life of the generator can be intended. Due to the coreless structure, the total weight of the generator will be decreased.
In this thesis, a disc type coreless generator with electromagnetic braking apparatus is built. The whole system includes mechanical power apparatus, the coreless generator, electromagnetic braking apparatus, and power converter. Electricity generated by generator needs enough to provide stable power for the panel of function display and electromagnetic braking apparatus that can produce stable reluctance of braking. Finally, an experimental hardware with software algorithm is established to prove the effective for the proposed system.

並列關鍵字

coreless ； axial flux ； disc type ； electromagnetic braking

參考文獻

[2] S. R. Hong, Design and implementation of a driving system for self-sourcing magnetic braking bikes. Master Thesis, Department of Electrical Engineering, National Chungcheng University, Taiwan, 2004.

[6] C. J. Li, Research of coreless APFM generator for small vertical axial wind turbine. Master Thesis, Department of Mechanical Engineering, National Taiwan University, Taiwan, 2009.

[7] S. C. Chang, Research and analysis axial synchronous generator. Master Thesis, Department of Power Mechanical Engineering, National Tsinghua University, Taiwan, 1999.

[9] H. Vansompel, P. Sergeant, and L. Dupre, “Optimized design considering the mass influence of an flux permanent-magnet synchronous generator with concentrated pole windings,” IEEE Trans. Magnetics, vol. 46, no. 12, pp. 4101–4107, Dec. 2010.

[10] B.Xia, M. J. Jin, J. X. Xin, and A. G. Zhang, “Design and analysis of an air-cored axial flux permanent magnet generator for small wind power application,” in Proc. IEEE International Conference on Sustainable Energy Technologies, Kandy, Dec. 6-9, 2010, pp. 1–5.