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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28866
標題: | 工具機扭力馬達之最佳設計與最佳控制波形的研製 Optimal Design and Current Control Waveform of Torque Motor for Machine Tools |
作者: | Shih-Chin Yang 楊士進 |
指導教授: | 陽毅平(Yee-Pien Yang) |
關鍵字: | 電機機械,最佳化設計,工具機, Electric Machine,Optimal Design,Machine Tool, |
出版年 : | 2007 |
學位: | 碩士 |
摘要: | 在世界能源短缺及人本科技至上的時代,工具機在所有的科技中仍然是基礎的重要工程。傳統的工具機在高扭力操作下,往往因為龐大的慣量和複雜的機構,使得難度高加工的精度受到很大的限制;尤其在造型上複雜且特殊產品上,可以提供複雜曲面要求的多軸工具機將取代傳統的工具機成為加工機的主流。對多軸工具機來說,馬達本體主宰整個機械的傳動系統,本論文研發的新型直接驅動工具機扭力馬達將超越傳統工具機加工的限制,進而提升工具機的伺服性能以方便產品的大量生產。
本論文研究目標在於完成一個完整的直驅式工具機馬達設計與製造流程。首先,從設計觀點,由建立扭力馬達的設計方程式開始,利用最佳化程式針對特定的目標和規格需求來提升馬達的性能。接下來使用控制的方法,研發出最佳的驅動電流波形再加上最適合的偏移角(shift angle),使得馬達的力矩與效率再一次的提升。根據馬達雛型的製作和測試結果,我們提出的設計流程可以優化馬達的各部特性,且性能亦符合規格的要求。本研究對新型扭力馬達所提出的設計與控制技術已經移轉至一間在世界頗具盛名的工具機公司。 Machine tools are most important and fundamental in the industry, especially at present, where there are great concerns about energy shortage and human-centered technologies. Traditional machine tools indirectly driven by conventional motors do not always operate efficiently, due to their mass moment of inertia and complexly coupled mechanisms. Today, a new competitive environment is emerging and forcing the evolution of machine tools for increasing efficiency over a wide range of operation. A directly driven torque motor has become a promising solution to the next-generation multi-axis machine tool, for its flexibility and intelligence in mass production. This thesis introduces a systematic design and control procedure of torque motor for the next-generation machine tools that operate with high torque and low ripples. From the design perspective, the optimal design of motor geometry maximizes the output torque and efficiency; it also minimizes the cost under various constraints of size, materials and power sources. From the control perspective, an optimal current control waveform with an optimal shift angle in each phase is determined in order to increase more output torque. A prototype is fabricated, and the experimental results not only show that the motor meets all the performance requirements, but also prove the reliability of the proposed design procedure. The design and control technology of this novel torque motor has been transferred to a world-class prestigious machine tool company. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28866 |
全文授權: | 有償授權 |
顯示於系所單位: | 機械工程學系 |
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