磁場導向控制(Field Oriented Control)控制架構中，電流內迴路控
制器的設計仰賴馬達d、q 軸電感及相電阻的資料。傳統上將馬達d、
q 軸電感視為定值，並且忽略矽鋼片的飽和進行解耦合之電流控制器
設計。然而同步磁阻馬達(Synchronous Reluctance Motor)由於本身無
磁鐵，需利用d 軸電流激磁提供磁場，因此d、q 軸電感受電流影響
更為顯著。
本文使用有限元素分析軟體ANSYS Maxwell 與Simplorer 進行
電磁耦合模擬，電磁耦合模擬結合功率開關的驅動控制與馬達的有限
元素分析，因此能夠考量同步磁阻馬達d、q 軸電感的相互耦合，結
合電流衰減量測法取得同步磁阻馬達於操作電流條件下之電感，並且
利用相同的方法進行實驗以驗證模擬所得之電感值。藉由極零點對消
法設計動態控制器，以增進d、q 軸電感解耦合之效益，並與固定參
數之控制器做比較，由模擬結果可驗證動態電流控制器能達到更好的
電流控制效果，降低d、q 軸交互磁飽和效應對電流控制的影響。

This thesis proposes two dynamic controllers to mitigate the influences of cross-magnetic saturation of synchronous reluctance motor (SynRM) by using electromagnetic co-simulation. The cross-magnetic saturation is a phenomenon that the d and q axis inductances vary with not only the self-axis current but also the other. By applying the current decay test, the inductance of d and q axis can be obtained in both measurement and co-simulation. There are some differences in the inductances obtained by measurement and co-simulation, but the curves have same tendency. Thus, the measurement approach is considered to be effective. Using the obtained inductance and the pole-zero cancellation technique, the dynamic controller is designed.
In order to reduce the complexity due to the mutual effect of the d and q inductances, the d axis current is first designed as a constant. Then, the command of the q axis current varies due to the velocity error with the d axis current is fixed. The result of co-simulation shows that the dynamic controllers provide better decoupling effect than a constant-gain controller while regulate the velocity command.

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