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研究生： 李銘恆
Ming-heng Li
論文名稱： 無刷直流馬達具啟動調整策略之無感測驅動器研製
Design and Implementation of Sensorless BLDCM Drive with Start-up Adjustment Strategy
指導教授： 徐國鎧
Kuo-Kai Shyu
口試委員:
學位類別： 碩士
Master
系所名稱： 資訊電機學院 - 電機工程學系
Department of Electrical Engineering
畢業學年度： 100
語文別： 中文
論文頁數： 78
中文關鍵詞： 速度控制 、啟動調整策略 、無感測
外文關鍵詞： Sensorless, Speed Control, Start Adjustment Strategy
相關次數： 點閱：11  下載：0 
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    • 本論文為針對無刷直流馬達無位置感測元件驅動器設計與實現，基於馬達線電壓與反電動勢零交越點之關係，建立換相訊號估測電路取代位置感測器以提供馬達轉子位置資訊。此外為強化馬達開迴路啟動之可靠性，本文提出藉由馬達啟動前之定位步驟，基於轉子磁通會影響定子線圈電感值，並間接影響定子線圈電流在定位期間暫態時之電流曲線變化，因此利用偵測電流變化以判斷馬達掛接負載輕重程度，並輔以模糊理論調整馬達啟動時之施力大小，藉以達成在每次馬達啟動之初，啟動之可靠性與避免啟動電流過大之問題。

    In this thesis, design and implement for sensorless brushless dc motor drive are discussed. Based on the relationship between line to line voltage and zero crossing points of back electromotive force in motors, hall signal estimation circuit is established to replace hall effect elements which provide the information of the rotor position. Furthermore, to enhance the reliability of open-loop start-up procedure, a duty adjustment strategy is proposed in this thesis. Based on the phenomenon of the inductance change in stator winding which is affected by the rotor flux linkage, the time which dc bus current rises to the setting value is recorded during the aligned procedure before motor starting up. The rising time to the setting current level is used to estimate the corresponding load that the motor connects. Finally, fuzzy theory is introduced to calculate the appropriate start-up duty value for achieving starting successfully within different loads.

    摘要 I ABSTRACT II 誌謝 Ⅲ 目錄 IV 圖目錄 VI 表目錄 Ⅸ 第一章 緒論 1 1.1 研究動機與目的 1 1.2 內容大綱 3 第二章 無刷直流馬達介紹 4 2.1 前言 4 2.2 無刷直流馬達結構及運轉原理 4 2.3 無刷直流馬達數學模式 5 2.4 方波驅動 8 第三章 啟動調整策略 13 3.1 前言 13 3.2 定子線圈電感值變化 14 3.3 馬達定位等效電路分析 18 3.4 低通濾波器設計 20 3.5 啟動流程 21 3.6 模糊理論調整開關責任週期值 24 3.6.1 系統描述 24 3.6.2 歸屬度函數 25 3.6.3 模糊規則與推論工廠 27 3.6.4 解模糊化 29 第四章 無感測馬達驅動器實現 31 4.1 前言 31 4.2 換相電路 32 4.2.1 換相原理 32 4.2.2 換相電路介紹 34 4.3 速度控制 36 4.3.1 速度控制系統架構 36 4.3.2 轉速估測 36 4.3.3 速度控制器 38 第五章 硬體架構與實驗結果 41 5.1 數位訊號微控制器 41 5.2 系統電路介紹 42 5.2.1 電源供應電路 43 5.2.2 變頻器驅動電路 44 5.2.3 控制板電路 46 5.2.4 馬達規格與實驗平台 48 5.3 實驗結果 48 5.3.1 啟動調整策略 50 5.3.2 換相訊號估測電路 52 5.3.3 閉迴路速度控制 55 第六章 結論與未來展望 60 參考文獻 61 附錄A 64

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