臺灣博碩士論文加值系統

本文旨在探討多階變頻器的設計及製作。文中將針對多階變頻器應用在感應電動機驅動系統加以探討。除了進行相關的分析及電腦模擬外，並實際研製一部二極體箝位式三階變頻器感應機驅動系統，該系統以INTEL 80196MC微處理器為基礎，配合相關硬體電路達成所需雛形系統的研製，為了簡化硬體電路的複雜度，本文中以可程式邏輯元件（programming logic device簡稱PLD）取代數位積體電路；而變頻器的調變法則採用電流調制法及電壓調制法，運用向量控制法則達成感應機的轉矩控制，並進一步完成閉迴路速度控制。文中也對相關的中性點電壓平衡問題進行分析，最後以電腦模擬及實驗結果，驗證本系統的可行性及相關分析的正確性。

This thesis proposes the design and implementation of a multi-level inverter. An induction motor drive system, which is driven by the multi-level inverter, is presented. The detailed theoretical analysis and com-puter simulation results are shown. In addition, the implementation of the proposed system, which includes an INTEL 80196MC microproces-sor with some hardware circuits, is discussed. In order to reduce the complexity of the hardware circuits, some programming logic devices have been used to replace digital integrated circuits. The modulation strategies, which include current-regulated modulation and voltage-regulated modulation have been used here. The closed-loop drive system has been designed based on the torque control, which is obtained by ap-plying vector control principle. The balancing problem of the neutral-point voltage is discussed as well. Finally several simulated results and experimental waveforms are shown to validate the feasibility and cor-rectness of the proposed system.

中文摘要 I
英文摘要 II
目錄 III
圖表索引 VI
第一章 緒論 1
1. 1動機 1
1.2文獻回顧 1
1.3目的 3
1.3大綱 5
第二章 感應機向量控制介紹 6
2.1簡介 6
2.2座標軸轉換 6
2.3感應機數學模式 9
2.4向量控制 12
2.4.1轉矩控制 12
2.4.2閉迴路系統設計 15
第三章 多階變頻器介紹 17
3.1簡介 17
3.2電路架構 18
3.2.1二極體箝位式 18
3.2.2浮接電容分壓式 21
3.2.3串接式 24
第四章 脈波寬度調變策略 27
4.1簡介 27
4.2電流調制 27
4.2.1 a-b-c軸磁滯調變法 28
4.2.2 d-q軸磁滯調變法 30
4.2.3 a-b-c軸三角波比較調變法 31
4.3 電壓調制 34
4.3.1 正弦波寬調變法 34
4.3.2 空間向量調變法 36
4.4 直流鏈電壓平衡 40
第五章 系統設計與製作 43
5.1簡介 43
5.2硬體電路製作 45
5.2.1三階變頻器及其緩衝級電路 45
5.2.2 狀態產生電路及延遲電路 48
5.2.3電流偵測 52
5.2.4倍頻與計數電路 53
5.2.5三角波比較電路 56
5.2.6數位/類比電路 57
5.2.7微處理機界面電路 59
5.3軟體程式設計 61
5.3.1控制軟體簡介 61
5.3.2 a-b-c軸磁滯調變向量控制軟體設計 65
5.3.3 d-q軸磁滯調變向量控制軟體設計 65
5.3.4 a-b-c軸三角波比較調變向量控制軟體設計 69
5.3.5正弦波寬調變向量控制軟體設計 69
第六章 模擬與實測 72
6.1簡介 72
6.2電腦模擬 73
6.3模擬及實測結果 83
第七章 結論與建議 109
參考文獻 110
附錄 118
作者簡介 129

1． 多階層變頻器的理論分析及模式建立
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3． 以多階層變頻器驅動電動機系統的研究
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4． 以多階層變頻器達成虛功補償
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5． 軟式切換技術應用於多階層變頻器
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6． 多階層換流器的探討
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7． 多階層變頻器緩衝級電路的研製
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