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系統識別號 U0026-1506202017150800
論文名稱(中文) 零電壓切換技術於永磁同步馬達三相變頻器之應用
論文名稱(英文) Application of Zero-voltage Switching Technique in Three-phase Inverter of PMSM
校院名稱 成功大學
系所名稱(中) 電機工程學系
系所名稱(英) Department of Electrical Engineering
學年度 108
學期 2
出版年 109
研究生(中文) 陳品之
研究生(英文) Pin-Chih Chen
學號 VK6072014
學位類別 碩士
語文別 中文
論文頁數 73頁
口試委員 指導教授-蔡明祺
共同指導教授-謝宏毅
口試委員-謝旻甫
口試委員-謝聰烈
中文關鍵字 零電壓切換  柔性切換  五段式交變載波SVPWM  三相變頻器  永磁同步馬達 
英文關鍵字 Zero-voltage switching  Soft switching  Five-segment alternating carrier SVPWM  Three-phase inverter  PMSM 
學科別分類
中文摘要 變頻器被廣泛的應用在馬達驅動器,其中又以工業用馬達為大多數,如水泵、風扇等長時間運轉系統。一般傳統變頻器架構會是採用硬性切換的模式,容易導致切換損失與產生電磁干擾等問題。為了改善傳統架構的缺點,本論文提出零電壓切換技術並應用於永磁同步馬達驅動器。此變頻器電路係加入一組輔助換向電路,配合五段式交變載波SVPWM,製造可柔性切換的時機,進而完成零電壓切換。本論文將先探討傳統變頻器架構之硬性切換現象及其問題,再分析零電壓切換變頻器的電路架構及工作原理,並提出整體系統之軟硬體設計理念,最後利用實驗成果,證明所提的電路架構,於特定穩態操作區間時,確實能夠減少切換損失,相較一般傳統的變頻器架構,可以提升高百分之三的效率,並降低功率開關元件的切換暫態電壓變化與溫升速度,對處於長期運轉且負載穩定的工業用永磁同步馬達驅動系統有顯著的改善。
英文摘要 Three-phase Inverters are widely used in motor drive systems, among which industrial motors are the majority, such as water pumps and cooling fans. These types of motors usually work for long period of time carrying steady loads and consume significant amount of electricity. The traditional inverter topology operates in hard-switching mode, which leads to a lot of switching loss and electromagnetic interference. In order to eliminate the flaw of the traditional inverter, this paper proposes a zero-voltage switching (ZVS) technique and applies it to a permanent magnet synchronous motor (PMSM) driver. The proposed inverter topology adds one auxiliary commutation circuit and combined with the five-segment alternating carrier SVPWM to create ZVS timings. Furthermore, this paper provides analysis for the working principle of the zero-voltage switching inverter and explain the design consideration of its resonant components. Finally, experimental results were presented to show that the proposed ZVS inverter can reduce the switching loss in specific steady-state operating load range. Compared with the conventional inverter, the proposed ZVS inverter can improve the efficiency of the motor driver by 3%, and also reduce the voltage change slope and temperature of the power switches.
論文目次 中文摘要 II
ABSTRACT III
誌謝 XVII
目錄 XIX
表目錄 XXII
圖目錄 XXIII
符號表 XXVII
第一章 緒論 1
1.1 研究動機與目的 1
1.2 文獻回顧 4
1.3 論文架構 8
第二章 零電壓切換三相變頻器架構 10
2.1 傳統三相變頻器零電壓切換的限制 10
2.2 零電壓切換三相變頻器之動作原理 14
2.3 零電壓切換三相變頻器操作區間限制 24
第三章 共振迴路電路分析 25
3.1 箝位電容分析 25
3.2 輔助換向開關切換時機 27
3.3 主要功率開關死區時間分析 32
第四章 軟體控制與硬體電路設計 37
4.1 數位訊號處理器 37
4.2 永磁同步馬達驅動系統控制架構 38
4.3 功率開關切換訊號實現 39
4.3.1 七段式空間向量脈衝寬度調變 39
4.3.2 五段式空間向量脈衝寬度調變 40
4.3.3 五段式交變載波SVPWM 41
4.4 硬體電路設計 48
4.4.1 共振電路元件選用 50
4.4.2 功率開關驅動電路設計 52
4.4.3 電流回授電路設計 53
4.4.4 編碼器訊號接收電路設計 53
第五章 實驗量測成果分析及討論 55
5.1 實驗量測簡介 55
5.2 電路動作波形 57
5.2.1 主要開關切換訊號與三相電流 57
5.2.2 輔助換向電路與主要開關切換波形 58
5.2.3 輔助換向開關與共振電路波形 61
5.3 傳統電路架構與本文電路架構比較 64
5.3.1 切換波形比較 64
5.3.2 效率表現比較 66
5.3.3 溫升表現比較 67
第六章 結論與未來建議 69
6.1 結論 69
6.2 未來建議 70
參考文獻 71
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