由於近年來電動車發展蓬勃，內藏型永磁馬達相當適合作為其動力馬達。此外，車用之驅動器須具備快速且穩健的轉矩響應，以滿足駕駛透過踏板動作所要求之瞬間轉矩需求，因此具有高轉矩響應之直接轉矩控制系統，受到眾人矚目。本論文主要對內藏型永磁馬達之磁滯轉矩控制進行研究，改善傳統轉矩磁滯控制器無辨載能力，藉由將轉矩離散化，並且推導出電壓向量與電磁轉矩之關係，提出適用於所有操作條件下的轉矩磁滯控制器，使馬達有較佳運動表現。
文中利用ANSYS-TwinBuilder電路模擬軟體建立控制架構，模擬變頻器之作動，以驗證控制器訊號之動作。且將提出的演算法植入德州儀器C2000微控制晶片，以實現控制器訊號之動作，並利用硬體在線迴路(Hardware in the loop, HIL)模擬驅動電路及馬達動作，驗證本文演算法在任何操作條件下，馬達皆有較小轉矩漣波及較佳動態響應表現。

This thesis mainly studies the direct torque hysteresis controller for interior permanent magnet synchronous motor (IPMSM), The Direct Torque Control (DTC) scheme controls stator flux linkages and torque by means of hysteresis controllers, respectively a two-level control structure for the stator flux linkage and a three-level control structure for the electromagnectic torque. The traditional three-level hysteresis controller has a fixed action range that cannot identify the load. In order to improve the traditional torque hysteresis controller without load changes identification ability, an adjustable torque hysteresis controller suitable for all operating conditions is proposed by discretizing the torque and deriving the relationship between the voltage vector and the electromagnetic torque. As a result, the motor may have less torque ripple and better dynamic response performance.
In this paper, the ANSYS-TwinBuilder oftware is used to establish the control architecture, and the operation of the inverter is simulated to verify the action of the controller signal. The proposed algorithm is implanted into the Texas Instruments C2000 micro-control chip to realize the action of the controller signal, and the Hardware in the loop (HIL) is used to simulate the driving circuit and motor operation to verify the algorithm.

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