交流馬達驅動控制可分為純量控制以及向量控制，其中向量控制法相對於純量控制法有更佳的響應速度及精確度，現今向量控制法多以磁場導向控制法(Field Oriented Control, FOC)以及直接轉矩控制(Direct Torque Control, DTC)兩種為主要驅動控制基礎，其中DTC無須等待電流迴路控制器收斂及同步旋轉座標軸轉換，轉矩響應速度及角度誤差容忍度皆優於FOC，故本論文以DTC為基礎架構，並引入模型參考預測控制(Model-based Predictive Control, MPC)，取代傳統遲滯查表控制法，以達到更精確之電磁轉矩控制。
馬達驅動控制相當依賴角度傳感器，不僅增加馬達成本，驅動可靠度也隨傳感器受環境影響而出現錯誤，故本論文基於靜止座標軸設計，並引入D-module、二階等效積分器建立磁交鏈觀測器，以電壓電流間接估測轉子磁鐵磁交鏈，再經由相鎖迴路估測馬達轉子電氣角度及速度，最後選定高功率密度之內藏式永磁同步馬達，以驗證無角度傳感器之直接轉矩控制。

AC motor drive control method can be divided into scalar control and vector control. The transient response and accuracy of the vector control method is better than the scalar control method. Today's vector control methods are Field Oriented Control (FOC) and Direct Torque Control (DTC) as the main driving control basis. And DTC's torque transient response and angular error tolerance are better than FOC. Therefore, this paper is based on DTC, and Model-based Predictive Control (MPC) is introduced, which replaces traditional hysteresis table control to achieve more accurate electromagnetic torque control.
Motor drive control is quite dependent on the angle sensor. Not only increases the cost of the motor, but the reliability also decreases as the sensor is affected by the environment. Therefore, this paper is based on the design of the stationary coordinate axis, and the D-module and second-order equivalent integrator are introduced to establish a flux observer to estimate the rotor magnet flux linkage by using voltage and current indirectly. Then the electrical angle and speed of the motor rotor are estimated via the phase-locked loop by using the estimated magnet flux linkage. Finally, a high-density Interior permanent magnet synchronous motor was selected to complete the sensorless direct torque control.

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