本文提出同步磁阻馬達之直接轉矩控制(Direct torque control，簡稱DTC)及Luenberger Observer估測架構，避免傳統磁交鏈估測以反電動勢積分的方式所造成的誤差累積及直流偏壓的現象。本研究採用Maxwell、Simplorer及MATLAB三種數值模擬軟體同時進行系統的多物理量耦合模擬，作為同步磁阻馬達直接轉矩控制架構的設計依據。透過MATLAB的模擬系統建置同步磁阻馬達直接轉矩控制所需的控制系統架構，決定馬達驅動系統的開關切換訊號，並藉由Simplorer軟體系統建置驅動電路，作為Maxwell與 MATLAB模擬間的橋樑，傳遞電流、電壓等電氣物理量至Maxwell中所建構的同步磁阻馬達模型，模擬馬達輸出的轉速、扭矩機械特性，及電磁場(包含磁交鏈、電感、反電動勢)電氣特性等，並將這些物理量回授至MATLAB軟體中，達到系統的多物理耦合模擬目的。最後，本論文以實驗結果驗證所提出的磁交鏈估測架構，其估測準確性高於傳統磁交鏈積分估測法，並同時證實耦合模擬分析結果的正確性。

In this paper, the direct torque control on synchronous reluctance motor and the flux Luenberger observer scheme are proposed to avoid the error accumulation and the stator voltage-drop caused by the back electromotive force integral in the traditional flux estimation. Three simulation software, i.e., Maxwell, Simplorer and MATLAB were used to implement the multi-physics coupled-simulation for designing the model of the synchronous reluctance motor direct torque control. MATLAB simulation was used to build the direct torque control model for determining the switching signal of the motor drive system, which was then delivered to the driver circuit built by Simplorer software. After which, Simplorer software exported the electric information such as current and voltage values to the synchronous reluctance motor model developed by Maxwell software for simulating the characteristics of the motor. Finally, the information collected was further delivered to MATLAB as the feedback signal to achieve the goal of multi-physics coupled-simulation. Our experimental results showed that the accuracy of the proposed method was higher than the traditional flux linkage estimation method. In addition, the co-simulation results of DTC collected had further confirmed that the capability/performance of the proposed method was better than the conventional method as well.

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