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研究生:童榆升
研究生(外文):Yu-sheng Tung
論文名稱:排風扇電動機驅動系統之研製
論文名稱(外文):Development of Fan Motor Drives
指導教授:黃仲欽
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:電機工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:中文
論文頁數:138
中文關鍵詞:永磁式同步電動機功率因數校正
外文關鍵詞:permanent–magnet synchronous motorpower factor corrector
相關次數:
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  本文旨在研製排風扇之驅動系統。單相交流電源經由交流-直流-交流功率轉換器,將市電轉換為可調變電壓及頻率之三相電源。本文採用成本低且控制簡單之全橋式半控型功因校正器輸出直流鏈電壓,不僅能改善電源電流諧波含量及提高功率因數,亦可穩定直流鏈電壓,使其可調變於220V~300V之範圍,而不受負載影響,再藉由三相變流器驅動永磁式同步電動機旋轉。三相變流器採用弦式脈波寬度調變完成轉速與電流閉迴路控制,並藉由三個霍爾效應感測元件估測出一連續電動機轉子磁極角位置以降低電動機電流諧波含量,減少抖動。排風扇系統於溫度較高時提高直流鏈電壓,使排風扇電動機有更大的轉速範圍,增加排風扇之排風量;溫度低時則降低排風扇電動機轉速及風扇之排風量,減少使用功率。
  排風扇之驅動系統以數位信號處理器TMS320F2808作為控制核心,其全橋式半控型功因校正器之電壓與電流閉迴路控制與三相變流器之轉速與電流閉迴路控制皆以軟體完成,減少硬體電路並提高可靠度。本系統輸入側電源電壓為單相交流110V,60 Hz,排風扇的轉速範圍為 至 。當排風扇轉速命令為 ,輸出功率為640W的條件下,實測結果顯示電源電流總諧波失真率為7.02%,電動機側之電流總諧波失真率為4.27%,整體的效率為82%。
  This thesis presents the development of fan motor drives. The system consists of rectifier, inverter and three-phase permanent–magnet synchronous motor, which can transfer the single-phase source power to three-phase source with varying-voltage and varying-frequency. Low cost and simple control of the single-phase semi-controlled full-bridge type power factor corrector is used to not only decrease harmonic current and improve power factor in the power supply, but also keep DC-link voltage stable under load variation. Three-phase inverter uses closed-loop control of speed and current by sinusoidal pulse-width modulation and rotor position estimation to reduce the motor current harmonics and jitter. For fan system under high temperature, DC-link voltage is raised to extend the speed range for increasing the fan exhaust. While at low temperature, the motor speed is decreased to reduce fan exhaust and power consumption accordingly.
  The 32-bit digital signal processor, TMS320F2808, is adopted to implement the control functions of the fan system. The control of the closed-loop rectifier voltage and current as well as the inverter control of motor speed and current are realized by software to reduce circuit components, and thereby improves reliability. An experimental system is implemented with input voltage of 110V, 60 Hz and motor speed range from 100rpm to 450rpm. Experimental results show that the total harmonic distortion of current is 7.02% on the supply side, while the total harmonic distortion of current is 4.27% on the load terminal. The system efficiency is 82%.
摘要 I
英文摘要 II
誌謝 III
目錄 IV
圖表索引 VI
符號索引 XIII
第一章 緒論 1
1.1動機及目的 1
1.2文獻探討 1
1.3系統架構及規格 4
1.4本文特色 6
1.5本文大綱 6
第二章 排風扇用之永磁式同步電動機的分析及控制 7
2.1前言 7
2.2永磁式同步電動機及其數學模式 7
2.3排風扇用之永磁式同步電動機參數量測 10
2.4三相變流器及排風扇電動機之控制策略 20
2.4.1電流方波控制 20
2.4.2弦式脈波寬度調變控制 24
2.5角位置估測法 29
2.6永磁式同步電動機控制規劃 29
2.6.1電流方波控制 30
2.6.2定磁通之弦式脈波寬度調變控制 31
2.6.3霍爾效應感測元件之轉速及電流閉迴路控制 32
2.6.4具角度估測之轉速及電流閉迴路控制 33
2.7結語 36
第三章 交流-直流功率轉換器的分析及控制 37
3.1前言 37
3.2交流-直流功率轉換器分析 37
3.2.1未具功因校正之功率轉換器 37
3.2.2具功因校正之功率轉換器 38
3.3單相全橋式半控型功因校正器的分析及模式 41
3.4單相全橋式半控型功因校正器之實體製作 49
3.5節能措施及系統整合 55
3.6結語 57
第四章 實體製作及結果 59
4.1前言 59
4.2硬體電路 59
4.2.1數位信號處理器介面電路 59
4.2.2電流回授電路 62
4.2.3交流電壓回授電路 63
4.2.4直流電壓回授電路 64
4.2.5閘極驅動電路 65
4.2.6溫度回授電路 68
4.3控制軟體規畫 69
4.4實測結果 71
第五章 結語及未來研究方向 85
5.1結語 85
5.2未來研究方向 86
參考文獻 87
附錄A 排風扇用之永磁式同步電動機結構與參數 91
附錄B .LabView for NI PCI-6251 94
附錄C Matlab 交流-直流功率轉換器模擬程式 102
作者簡介 119
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