基於轉子初始位置估測之永磁同步馬達無感測器啟動方法研製;Implementation of Sensorless Startup Method for Permanent Magnet Synchronous Motor Based on Initial Rotor Position Estimation

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Title:	基於轉子初始位置估測之永磁同步馬達無感測器啟動方法研製;Implementation of Sensorless Startup Method for Permanent Magnet Synchronous Motor Based on Initial Rotor Position Estimation
Authors:	游子民 Yu, Tzu-Ming
Contributors:	電機工程學系
Keywords:	永磁同步馬達;無感測器;脈波電壓注入;電流-頻率啟動;PMSM;Sensorless;Pulse voltage injection;I-f startup
Date:	2022-07-28
Issue Date:	2022-10-04 13:33:47 (UTC+8)
Publisher:	國立中央大學
Abstract:	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
Appears in Collections:	[Graduate Institute of Electrical Engineering] Electronic Thesis & Dissertation

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