以DSP實現主動式磁浮軸承轉子偏心力補償系統之研究

本論文主要以數位訊號處理器進行可變結構控制器搭配外力估測器，以補償單邊磁浮軸承轉子系統造成之震動與質量不平衡之現象。數位訊號處理器又簡稱DSP(Digital Signal Processor)，是一種高運算速度的微處理器，可以及時處理資料，對於現實生活中許多連續的類比訊號進行量測或濾波。DSP不僅效率高，體積小，消耗功率也小所以運用相當廣泛。工業上大多數傳統機器設備都有噪音、摩擦、損耗等問題，磁浮軸承是一種藉由磁力使得轉軸與軸承之間並不直接接觸，來達到零摩擦力的理想。藉此可延長機械零件之壽命並降低能量損耗，加上不需要潤滑油其潔淨功能符合IC產業的需求、溫度的適用範圍極廣、無汙染、可以在特殊的環境中使用等多項優點。隨著科技日新月異，輕量化低功率也是科技近年來的趨勢，而大型系統的控制會是追求精準而不繁複，而本論文使用體積小高效率低功率之DSP，將估測偏心外力與實際偏心外力、估測位置與實際位置作比較，並建立可變結構控制器，使系統具足夠之強健性，改善主動式磁浮軸承進而達到良好的準確性及穩定度。

關鍵字

嵌入式系統；數位訊號處理器；可變結構控制器

並列摘要

In this study ,using the TMS320F2812 digital signal processor associated with a variable structure controller with a force estimator for a single active magnetic bearing suspended rotor system to eliminate the vibration associated with unbalance of mass. Digital Signal Processor is a high operation speed of microprocessors, this system can be used to handle in real time. Measuring or filtering resolution of Continuous analog signals. DSP is not only high efficiency, small size, power consumption is also small so the use of a wide range. Most conventional machines have problems: noise, friction, wear and tear. Magnetic bearings are making shaft and bearing no direct contact by magnetic force. To achieve the desire－zero friction. Thereby extend the life of mechanical parts and reduce energy loss. It does not require oil so it can be used in special circumstances, like clean room. As technology improves every day, lightweight and low power is a trend in recent years. Large-scale control systems require precision rather complicated. And this paper use the DSP which with small, high efficiency and low-power. To compare the estimated unbalance force and displacement with real ones, could obtain the variable structure controller based on the force estimator for a single active magnetic bearing suspended rotor system was established successfully and has good accuracy.

並列關鍵字

embedded system ； DSP ； VSC

參考文獻

[41] 吳政儒，磁浮平台脈寬調變功率放大器暨可變結構控制器開發與設計，中原大學碩士論文，2006。

[42] 王滄毅，磁浮軸承轉子系統之模糊偏心補償控制研究，中原大學碩士論文，2006。

[43] 李應村，軸向磁氣混合軸承系統控制研究，中原大學碩士論文，2008。

[44] 鍾緯承，主動式磁浮軸承應用於轉子偏心力消除系統之研究，中原大學碩士論文，2012。

[2] S. Sivrioglu, and K. Nonami, "Sliding mode control with time varying hyperplane for AMB systems," IEEE/ASME Trans. Mechatronics, Vol. 3, no. 1, pp. 51-59, 1998.

主題瀏覽