臺灣博碩士論文加值系統

本文主要以具功率因數校正的智慧型省能乾衣機為核心，設計升壓型功率因數校正轉換器、直流無刷馬達速度控制驅動系統及溫度控制驅動系統。在電源側以升壓型轉換器為架構，採用平均電流控制法，完成主動式功率校正目的，符合國際電流諧波規範。而在烘乾技術方面，提出一嶄新的省能專利自動烘乾停機控制方法，主要係利用微處理機偵測其排氣口溫度梯度變化估測衣服相對溼度，控制加熱器的開關及馬達速度的狀態，藉由排氣口溫度梯度曲線變平緩時，表示衣物已烘乾，乾衣機便會自動關閉加熱器，結束烘衣步驟，接著滾筒與風扇將以高速運轉抽入機外冷空氣，達到快速冷卻衣物的防皺及除靜電功能，當排氣溫度接近外部溫度時將會完全停機，如此，衣物取出時不燙手且降低靜電產生，確實達到乾衣、省錢與節能減碳之成效，並具人性化及便利性，只需One Touch按下按鈕，無須像傳統乾衣機需預估衣服重量及烘依時間預估設定等其他繁瑣的設定，也無須花時間在旁邊等待乾衣機停機，更無須擔心時間設定不當時造成過度烘乾及不乾的情形發生，本全數位專利烘乾驅動控制系統節能效率高於市售節能乾衣機種約20%以上。

The core of this paper is based on intelligent energy-saving clothes dryer with power factor correction. And design the boost power factor correction converters, BLDC motor speed control drive system and temperature control of the drive system.
The power supply uses the boost converter structure and adopts average current control method to complete the active power calibration purposes. It meets the regulations of international current harmonics wave.
In drying technology, a new energy-saving automatic drying control methods improved from original patent is designed.The microprocessor is used to detect the exhaust temperature gradient for controlling the shutdown of the heater and the motor speed. When the small change of the exhaust temperature gradient is reached, it represents that no more water inside clothes can be evaporated and the clothes has been dry enough, the heater is automatically shut down and steps to end the dryer. At this moment, the motor, which is used to drive the drum and fan, keeps operating, and the fan speed is controlled to drive more the cooler outside air to cool down hot clothes faster. It can also obtain less-wrinkle of clothes and less static electricity on clothes. While the exhaust temperature is close to that of outside air, the dryer will be completely shut down, the clothes will be less-wrinkle because of fast and enough cooling. Thus, the user will not feel hurt taking clothes even right after the dryer stop.And this dryer can obtain energy-saving and carbon-reducing effect,and the above user friendly designs make user more convenient using.While this dryer is used, it does only need to one-touch on the power and without any set-up process. More than that, the user does not worry the wrong time setup resulting in over drying or not-enough drying. It is proved from experiments that the energy-saving effect of this innovative method is 20% high than those of other dryers.

中文摘要 I
英文摘要 II
誌謝 III
目錄 V
圖目錄 IX
表目錄 XV
第一章 緒論 1
1.1 研究動機與目的 1
1.2 相關文獻回顧 5
1.2.1乾衣系統部分文獻回顧 5
1.2.2功因校正部分文獻回顧 8
1.2.3馬達驅動部分文獻回顧 9
1.3 研究成果 10
1.4 論文大綱 11
第二章 乾衣機原理概述 13
2.1 系統架構 13
2.2 乾衣原理之分析 13
2.3 不同外在空氣條件下的除濕能力比較 17
2.4 相對溼度不可行之原因 19
2.5 乾衣機滾筒構造分析 20
2.6 防皺、除靜電之原理 22
第三章 Boost功因校正整流器分析 23
3.1 功率因數介紹 23
3.1.1線性負載 25
3.1.2非線性負載 26
3.2 功率因數校正電路之演變 28
3.2.1 被動式功因校正電路 29
3.2.2 主動式功因校正電路 31
3.3 Boost功因校正整流器電路分析 36
3.4 內迴路電流控制 39
3.4.1內迴路電流控制分析 39
3.4.2 Boost功因校正整流器電路模式化 40
3.5 外迴路電壓控制 48
3.5.1 外迴路電壓控制分析 48
3.5.2 前饋控制 51
3.5.3 電壓控制模式化 53
第四章 直流無刷馬達相關技術分析 58
4.1 直流無刷馬達之特性 58
4.2 霍爾感測器介紹 59
4.3 直流無刷馬達驅動之轉動磁場原理 60
4.4 直流無刷馬達動態方程式 61
4.5 直流無刷馬達驅動電路換相原理 63
4.5.1 120度矩形波驅動方式 64
4.5.2 120度驅動器動作原理分析 70
第五章 系統硬體實作規劃設計與分析 73
5.1 乾衣機硬體架構 73
5.1.1 dsPIC30F4011晶片功能簡介 74
5.1.2 電源電路系統架構 77
5.1.3 溫度取樣電路 78
5.1.4 交流隔離電路 79
5.2 高功因Boost整流器硬體架構 80
5.2.1 功因校正控制IC UC3854 80
5.2.2 高功因Boost整流器功率級電路設計 82
5.2.3 電流感測 85
5.2.4 乘/除法器輸入信號設定 86
5.2.5 切換頻率設定 87
5.2.6 內迴路電流控制器 87
5.2.7 外迴路電壓控制器 90
5.3 直流無刷馬達驅動硬體架構 92
5.3.1 三相8極直流無刷馬達 93
5.3.2 介面電路 94
5.3.3 轉子位置偵測電路 95
5.3.4 主電路 96
5.3.5 IPM智慧型功率模組 96
第六章 系統軟體實作規劃設計與分析 101
6.1 乾衣機軟體架構 101
6.1.1 乾衣控制精確設計 104
6.1.2 嶄新自動停機特性曲線 104
6.2 直流無刷馬達軟體架構 106
第七章 實作結果 109
7.1高功因Boost整流器實作結果 109
7.1.1高功因特性與穩壓特性 110
7.1.2不同輸入電壓變動之穩壓性能 114
7.1.3不同負載變動之穩壓性能 115
7.1.4 FFT頻譜與電流諧波 116
7.1.5高功因Boost整流器之轉換效率性能測試 119
7.2直流無刷馬達速度控制驅動系統實作結果 120
7.2.1霍爾感測器訊號 120
7.2.2直流無刷馬達驅動訊號與三相線電壓 121
7.3具功率因數校正之智慧型省能乾衣機實作結果 124
7.3.1實驗測試方法 124
7.3.2乾衣機實驗步驟說明 127
7.3.3實作數據 128
參考文獻 136

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