本文旨在研製矩陣轉換器驅動交流電動機控速系統。文中首先說明永磁同步電動機和感應電動機的結構、特性及數學模式，其次提出新型的矩陣轉換器切換策略，以期減小矩陣轉換器切換時所產生的電流漣波，進而改善以矩陣轉換器驅動電動機之低速下的性能。最後，以一個16位元數位信號處理器TMS320LF2407A和一個高複雜度可程式化邏輯元件XC95288XL達成所有的電流及速度控制，使得硬體電路大為簡化，完成了全數位化控制系統。相關的分析並以實測加以驗證，實測結果說明本文所提出的相關法則確實可行，且具有良好的暫態、加載性能及寬廣控速範圍。

This thesis proposes the design and implementation of AC motor speed control systems driven by a matrix converter. First, the structure, characteristics and mathematical model of the permanent magnet synchronous motor and induction motor are discussed. In order to reduce the current ripple generated by the matrix converter, a novel switching strategy has been proposed. As a result, the performance of the drive system at low speed has been improved. All the control loops, including current loop and speed loop are implemented by a 16-bit TMS320LF2407A digital signal processor and a complex programmable logic device XC95288XL. Thus, the hardware circuit is very simple. A fully digital control system is achieved. The theoretical analysis can be validated by experimental results, which show that the proposed method is feasible and the drive system has good transient and load disturbance responses, and a wide adjustable speed range.

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