本論文研究永磁同步馬達在無位置感測器的情況下，以電流振幅閉迴路
電流-頻率啟動方法並結合改良型脈波電壓注入法估測轉子初始位置，完成啟
動流程。電流-頻率啟動方法以預定位方式給定特定向量命令，將使得啟動過
程馬達反轉、抖動，故本論文依據馬達電感的凸極效應導致等效電感會因轉
子位置不同影響電感值的特性，估測轉子初始位置。此外，以馬達等效數學
模型控制內部反應虛功率，保持啟動流程滿足磁場導向控制(id = 0)特性。
此啟動方法降低永磁同步馬達控制方法中需使用位置感測器量測轉子位
置訊號帶來的系統成本及體積，與其他無感測器啟動策略相比，演算法複雜
度低、不受限於特定馬達結構且確保啟動成功。;This thesis discusses the current amplitude close loop I-f startup combined with
improved pulse voltage injection method to complete the permanent magnet synchronous motor startup process without position sensors. In the I-f startup method, a
specific vector command is given in a pre-positioning manner, which will cause the
reversal and shake of the motor during the startup process. Therefore, this thesis estimates the initial rotor position according to the characteristic of the equivalent inductance value due to the different rotor position. Additionally, the motor model
equivalent mathematical model is used to control the internal reaction virtual power
to maintain the startup process satisfying the FOC(id = 0) characteristics.
This startup method reduces the system cost caused by the use of position sensors
to measure the rotor position signal in the PMSM control method. Compared with
other sensorless startup strategies, the algorithm has low complexity, it is not limited
to a specific motor structure and ensures successful startup
