以順滑模態技術設計直接轉矩控制系統在交流永磁式同步馬達的應用

Abstract

直接轉矩控制系統是以轉矩量及磁通量做為輸入命令的控制系統，本論文將利用順滑模態方法設計直接轉矩控制系統應用在交流永磁式同步馬達上，因此提出一順滑平面，其目的是控制轉矩量及磁通量到達期望值，並且設計出馬達定子參考電壓值，而且系統軌跡能夠產生順滑模態的行為，以達到控制的目的，此外，利用比例積分控制器做為速度的外部迴路以達成馬達的轉速控制，本文將利用模擬結果與實驗結果來驗証所提出 理論的可行性。 在本文中將以Turbo C++語言建立模擬架構以進行電腦模擬，而實驗設備將分為兩種，第一種實驗設備將以電腦配合週邊介面卡來建構，第二種實驗設備將以電腦配合自行設計的數位控制板來建構，不管以何種實驗設備所做出來的實驗結果，將都可以驗証控制理論的可行性，以及軟體與硬體設計的正確性。

Direct Torque Control System is to use torque and flux magnitude as input commands control system. In this thesis, design the direct torque control system for application of Permanent Magnet Synchronous Motor(PMSM) with sliding mode technique. Sliding surface are chosen, in order to control torque and flux magnitude to the desired value, motor stator reference voltage value and state trajectories that have a sliding mode behavior for driving system to achieve the control objective. Besides, motor speed control uses Proportional Integral(PI) controller. The results of simulation and experiment are presented to show validity of the proposed theory. Computer simulations in this thesis are performed by Turbo C++ language. We have two experimental tools, one is Personal Computer(PC) and some interface cards construction, the other is Personal Computer(PC) and personal design digital control board construction. Whatever both results for the experimental tools verify the validity of the proposed theory and the accuracy design software and hardware.