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研究生:梁詠杰
研究生(外文):Yung-Chieh Liang
論文名稱:無感測控制之感應馬達驅動器的盲時補償技術
論文名稱(外文):Dead-Time Compensation Technique for Sensorless Control of Induction Motor Drives
指導教授:賴炎生
口試委員:林秉毅林詠凱賴炎生
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電力電子產業研發碩士專班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
畢業學年度:104
中文關鍵詞:盲時補償高頻注入感應馬達
外文關鍵詞:dead-time compensationhigh frequency signal injectionInduction motor
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本論文探討應用於感應馬達控制器之速度估測器,利用高頻方波電壓信號注入原理在磁場導向控制上,實現較高頻寬的感應馬達無感測器向量控制之技術。無感測向量控制係在同步旋轉參考座標d 軸,注入高頻方波電壓訊號,然後從同步旋轉座標的電流回授差值估測同步轉速。
高頻訊號容易被脈波寬度調變的盲時影響,導致注入電壓波形失真,因而估測轉速不精確,故利用控制高頻電流差異而得到需補償的電壓誤差,進而補償注入電壓波形。本論文實驗系統包括了:變頻器、感應機實驗裝置及數位訊號處理器。由實驗結果可知,盲時補償技術可有效補償高頻注入的波形電壓誤差,使估測的同步轉速精確。
The main theme of this thesis is to design and implement sensorless induction motor drives. Use high-frequency square-wave voltage injection to achieve higher bandwidth sensorless vector control. Based on this study using a high frequency square-wave voltage injection into d-axis of the synchronous reference frame. Using the difference of the stator current signal by high-frequency square-wave voltage to estimate synchronous speed.
High-frequency signals are easily affected by dead-time. The injection voltage could be distorted, which leads to an error in the speed estimation. Use the difference of the high-frequency current signals to obtain the voltage error, which can compensate for high-frequency voltage wave. Experimental system of this thesis includes inverter, induction machine, and digital signal processor. The experimental results show that the dead-time compensation technique effectively derive voltage error of high frequency injection as dead-time is considered.
摘 要 i
ABSTRACT ii
誌 謝 iii
目 錄 iv
圖目錄 vi
表目錄 viii
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 3
1.3 內容大綱 5
第二章 感應馬達向量控制理論 6
2.1 座標轉換原理 6
2.1.1 三相系統與靜止座標系統之轉換 6
2.1.2 靜止與同步座標系統之轉換 9
2.2 感應馬達之數學模型 10
2.3 向量控制 18
第三章 高頻注入的無感測器控制 25
3.1 高頻注入之馬達模型 25
3.2 高頻電壓注入原理 29
3.3 控制器與速度估測器設計 33
3.3.1 控制器設計 33
3.3.2 速度估測器設計 35
第四章 變頻器的盲時補償技術 36
4.1 盲時的影響 36
4.2 盲時補償技術原理 38
4.3 模擬結果 39
第五章 實驗結果實測 43
5.1 實驗系統 43
5.2 實驗硬體介紹 43
5.2.1 數位訊號處理器 43
5.2.2 變頻器電路 45
5.2.3 電流偵測電路 46
5.2.4 馬達規格 47
5.3 軟體程式設計流程 47
5.4 實驗結果 48
第六章 結論與未來展望 54
6.1 結論 54
6.2 未來展望 54
參考文獻 55
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[14]Y. C. Kwon and S. K. Sul, “ Reduction of Injection Voltage in Signal Injection Sensorless Drives Using Capacitor-Integrated Inverter,” IEEE ECCE, pp. 2941–2948, 20-24 Sept. 2015.
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