| 研究生: |
吳孟杰 Wu, Meng-Chieh |
|---|---|
| 論文名稱: |
線性伺服系統同動控制之研究 An Investigation on Synchronous Control of Linear Servo System |
| 指導教授: |
謝旻甫
Hsieh, Min-Fu |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 系統及船舶機電工程學系 Department of Systems and Naval Mechatronic Engineering |
| 論文出版年: | 2005 |
| 畢業學年度: | 93 |
| 語文別: | 中文 |
| 論文頁數: | 76 |
| 中文關鍵詞: | 線型馬達 、同動控制 、主動式氣壓補償系統 |
| 外文關鍵詞: | Synchronous control, Active gravity balance control system, Linear motor |
| 相關次數: | 點閱:79 下載:10 |
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近幾年,線型馬達加工機之製造技術已逐漸蓬勃發展。考慮機體結構剛性及進給軸大推力的需求,以線型馬達為驅動軸之加工機大多採用箱體(Box-in-box)與龍門式(Gantry-type)結構設計,除提高整個機台的結構剛性外,並可抑制加工時所產生之共振。此結構設計的特色為單一進給軸由兩組平行線型馬達共同驅動,同時兩組馬達之間有剛性機構耦合,因此在高速及高精度考量下,雙線型馬達之同動控制實為關鍵技術。
本論文針對雙線型馬達同步運動控制課題,比較幾種工業界常用的雙線型馬達同動控制架構,並進行相關的分析與探討,整理歸納出各種架構的特色及優缺點,針對不同的應用場合提出實用上的建議。本論文以DSP-based的控制平台實現雙線性同動控制。此外,對於垂直軸向(Z軸)的雙平行線型馬達同動控制,考量在高加速度運動過程中,重力加速度對控制性能的影響,本研究提出主動式氣壓補償系統,搭配所提出之串-並聯混合式同動控制架構,可有效提升垂直軸向雙平行線型馬達之同動控制性能,並達到高速精密定位的目標,在加工機製造廠商協助下,相關研究成果已實際應用在實機加工上,獲得不錯之成效。
In recent years, the manufacturing technology of linear motor machine tools has been vigorously developed. To increase the thrust and mechanism rigidity and to restrain the resonance caused by machining, the ‘Box-in-Box’ and ‘Gantry-type’ structures are often adopted for linear motor machine tools. The feature of such a structure is that two parallel linear motors are physically coupled with a mechanism to realize one degree of freedom movement. Therefore, the synchronous control of the two linear motors is critical for the machine tools to achieve high speed and high accuracy.
This thesis focuses on the control techniques of servo systems formed by two parallel linear motors. Several industrial synchronous control strategies are analyzed and compared so that suggestions on suitable control schemes can be made according to applications. The control schemes are implemented using a digital signal processor. Moreover, for the vertical axis driven by two parallel linear motors, the effect of the gravity should be considered and compensated. This thesis employs an active gravity balance control system, associated with the proposed synchronous control schemes, to improve the performance of the machine tools. The control system has been successfully applied to an actual machine tool and has been proved effective.
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