- 學位論文
以單晶片PIC18F4431為核心之感應馬達PID速度控制之研究
The PID Speed Control of Induction Motor Based on Single-Chip PIC18F4431
摘要
本論文提出以單晶片PIC18F4431為核心之感應馬達PID速度控制方法。PID控制為工業界應用最廣泛的方法之一，它之所以廣受業界青睞，在於PID控制系統具有架構簡單、參數易調整、及穩定性良好等優點，在性能要求不特別嚴苛的工作環境中，PID控制通常能達到控制要求。 近年來，應用單晶片微處理器於馬達控制已相當成熟，並且單晶片微處理器的功能不斷的推陳出新，致傳統以類比電路實現馬達控制的控制方式，漸被以單晶片微處理器為核心的數位控制方式予以取代。利用單晶片微處理器進行數位式的驅動控制，可以大大的減少許多空間和成本，此外單晶片微處理器能處理複雜的運算式，這使得感應馬達在控制性能上得以大幅提昇。因此，單晶片微處理器的發展將使得馬達在控制上擁有更多的發展空間。 本論文以實驗室馬達為例進行研究，以驗証所提出方法的可行性。另外，論文中也利用Visual Basic (VB)軟體建構擬人化的人機介面，透過監控視窗，使用者可監控馬達轉速狀況，以利於馬達的動態掌控。
並列摘要
This thesis proposes the PID speed control of induction motor based on single-chip microprocessor PIC18F4431. The PID control is one of the popular methods that it has been widely applied in the industrial circles. Since the PID control system has the advantages of simple structure, good stability, and easy adjustment in parameters, it can satisfy the control requirement in which the control performance is not requested severely. Recently, the single-chip microprocessor has been widely applied to the motor control. Since the functions of single-chip are developed continuously, the traditional motor control method based on analog circuit is gradually replaced by the single-chip based digital control method. The digital control method can save much space and some of the expenses, and, it can also deal with complex mathematics that greatly promotes the control performance of induction motor. Therefore, the expansion of single-chip microprocessor will result in the motor more developments in control. To verify the feasibility of the proposed method, this thesis employs one three-phase induction motor to fulfill the experiment. Furthermore, this thesis also uses Visual Basic (VB) software to provide the man-machine interface of presonification Through the monitoring window, the users can monitor the operating state of induction motor that the dynamics of motor can be mastered.