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研究生:林悟宏
研究生(外文):Wu-Hung Lin
論文名稱:三相三線式數位化光伏能量轉換系統
論文名稱(外文):DSP-based Three-phase Three-wirePhotovoltaic Energy Conversion System
指導教授:陳建富陳建富引用關係梁從主
指導教授(外文):Jiann-Fun ChenTsorng-Juu Liang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
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:2002
畢業學年度:90
語文別:中文
論文頁數:91
中文關鍵詞:孤島運轉過/欠頻率偵測過/欠電壓偵測光伏能
外文關鍵詞:islandingover/under voltage detectionphotovoltaicover/under frequency detection
相關次數:
  • 被引用被引用:26
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  • 下載下載:232
  • 收藏至我的研究室書目清單書目收藏:2
本文利用數位信號處理器研製三相三線式光伏能量轉換系統,三臂換流器採單級,不須使用輸出變壓器、無儲能電池,體積小、重量輕、且高轉換效率。光伏能量轉換系統具有直流側過/低電壓保護、過電流保護、單獨運轉偵測與獨立運轉等功能。另外,此三相三線式光伏能量轉換系統提供併聯保護功能,以防止市電異常電壓/頻率時所造成孤島運轉之問題。光伏能量轉換系統之電壓源換流器採電流控制時,可使得太陽光電板所產生的電能,直接與市電併聯供電;當光伏能量轉換系統處於獨立運轉模式時,採用電壓模式控制,以提供負載交流弦波電壓。最後,建立一套1 kVA之轉換系統雛形,由實測結果驗證三相三線式光伏能量轉換系統之功能與特性。
A DSP-based digital controlled three-phase three-wire grid-connected multi-function photovoltaic energy conversion system is presented in this thesis. The photovoltaic energy conversion system is constructed by a three-leg inverter without storage device-batteries and output transformer. Therefore, the size is small, the weight is light, and the efficiency is high. The system also provides several functions such as over/under voltage protection in DC bus, detection of islanding operation, and stand-alone operation. Besides, the protecting functions of a grid-connection photovoltaic inverter system are included in the system to prevent the islanding effect. The three-leg voltage-fed inverter is operated at the current mode when the conversion system is operated at grid-connection mode. Thus, the system can supply real power to loads and feed excess power to the utility with unit power factor. As the conversion system is operated at the stand-alone mode, the output voltage is modulated to supply sinusoidal voltage to the loads. Finally, a 1kVA experimental prototype is built to demonstrate the performance of the proposed technique.
第一章 緒論 1
1.1 研究動機 1
1.2 文獻回顧 2
1.3 論文大綱 4
第二章 光伏能量轉換系統簡介 5
2.1 系統規劃 5
2.2 太陽光電池特性探討 7
2.2.1 太陽光電池種類 7
2.2.2 太陽光電池特性 8
2.2.3 太陽能最大功率追蹤方式 12
2.3 三相換流器架構與特性 16
2.4 併聯供電模式功能 18
2.5 獨立運轉模式功能 19
2.6 系統保護模式功能 21
2.6.1 孤島效應 22
第三章 數位式光伏能量轉換器分析與設計 25
3.1 前言 25
3.1.1 三角波比較控制法 27
3.1.2 磁滯控制法 28
3.1.3 空間向量控制法 29
3.2 三相全橋式換流器工作原理 29
3.3 電流模式控制器設計 32
3.3.1 內迴路電流控制器 33
3.3.1.1 電壓擾動補償控制器 35
3.3.2 外迴路電壓前饋控制器 36
3.4 電壓模式控制器設計 38
3.4.1 交流內迴路控制 39
3.4.2 直流外迴路控制 40
3.5 系統設計分析 40
3.5.1 取樣頻率之選擇 41
3.5.2 直流鏈電壓 43
3.5.3 直流側電流 43
3.5.4 濾波電路設計 44
3.5.4.1 考慮電感電流漣波 45
3.5.4.2 考慮輸出電壓漣波 46
3.5.4.3 諧振頻率之決定 47
3.5.5 導通延遲保護之補償 48
第四章 系統之硬體製作與軟體規劃 51
4.1 換流器實驗電路 51
4.2 週邊電路 52
4.3 數位信號處理器簡介 54
4.4 系統軟體規劃 55
4.4.1 併聯供電模式規劃 56
4.4.2 獨立運轉模式規劃 59
4.4.3 系統保護模式規劃 60
第五章 實測結果 64
5.1 太陽電池陣列架設 64
5.2 實驗結果 65
5.2.1 併聯供電模式測試 66
5.2.2 獨立運轉模式測試 72
5.2.3 系統保護模式測試 76
第六章 結論與未來研究方向 83
6.1 結論 83
6.2 未來研究方向 84
參考文獻 85
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