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研究生:黃少俞
研究生(外文):Shao-yu Huang
論文名稱:風力發電機併網對配電系統電壓閃爍衝擊之研究
論文名稱(外文):Study the Voltage Flicker Impact of the Wind Generator on Distribution System
指導教授:辜志承辜志承引用關係
指導教授(外文):Jyh-Cherng Gu
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:2006
畢業學年度:94
語文別:中文
論文頁數:86
中文關鍵詞:風力發電機電壓閃爍短路容量系統阻抗角
外文關鍵詞:wind generatorflickershort circuit capacityimpedance angle
相關次數:
  • 被引用被引用:4
  • 點閱點閱:635
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  • 下載下載:124
  • 收藏至我的研究室書目清單書目收藏:1
電壓閃爍是影響電力品質的重要因素之一,也是目前電力系統所面臨的問題。隨著風力發電機數量與機組容量的增加,在不穩定的風速下,因輸出電壓及電流之變動,直接造成電壓閃爍的影響。本論文主要目的在探討風機併網對電力系統電壓閃爍之衝擊,針對風機在不同短路容量、系統阻抗角、負載量與負載功因等運轉條件下,進行模擬與分析,並與實際量測結果相驗證。另外,於PCC點通常併接多台風力發電機,若使用傳統之單一電壓閃爍源評估方式會因受多台風機參差運轉的影響,而造成量測上的誤差,因此發展新的方式以評估正確的電壓閃爍值是必要的。本研究分析風場的模擬與量測數據發現單台風機輸出之電流變動 直接影響PCC點之電壓閃爍 ,且 的範圍也較大,可避免因參差因數之影響而造成電壓閃爍值評估上的誤差。
One of the most important power quality issues is voltage flicker. Nowadays this issue also impacts the power system all over the world. The fact of the matter is that the more and the larger capacity of wind generator has been installed. Under unstable wind power situation, the variation of output current and voltage have caused trouble to voltage flicker. Hence, the major purpose of this thesis is to analyze the impact of wind generator on voltage flicker of power system. First of all, digital simulation and analysis are carried out based on wind generator operating under various system short circuit capacity, impedance angle, loading, and power factor of load. The simulation results have been confirmed by field measurements. Furthermore, there are group of wind generator fed to PCC is common in many wind field. If the traditional single-flicker source estimation method is introduced to estimate the case with multiple flicker sources, it incurs certain estimation error. It is found that the variation of output current of single wind generator affect directly the at PCC. The other advantage of using the variation of output current of single wind generator to estimate the flicker contribution by itself is that the have more wide variation range. Hence, a -based flicker estimation method for wind generator is proposed.
摘要 I
Abstract II
誌謝 III
目錄 IV
圖表索引 VII
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 文獻回顧 3
1.4 研究方法 4
1.5 本論文貢獻 4
1.6 論文組織架構 5
第二章 風力發電與電壓閃爍 6
2.1 風力發電 6
2.1.1 國外風力發電發展現況 6
2.1.2 我國風力發電發展現況 9
2.2風力發電機類型 13
2.2.1 感應型風力發電機 13
2.2.2 雙饋式感應型發電機 14
2.3電壓閃爍 15
2.3.1 10Hz等效值 16
2.3.2 短時間嚴重性Pst 18
2.3.3 風力發電對電壓閃爍之影響 20
2.4本章討論 22
第三章 風機運轉之電力資料分析 23
3.1 前言 23
3.2 風場電力資料量測 23
3.2.1風機基本電力資料 23
3.2.2量測方式 25
3.2.3電力資料量測結果 27
3.2.3.1 A風場量測結果分析 28
3.2.3.2 B風場量測結果分析 42
3.2.4風場之電力資料比較分析 47
3.3 本章討論 49
第四章 風機運轉時電壓閃爍電腦模擬 50
4.1 前言 50
4.2系統架構 50
4.3 電壓閃爍之計算 51
4.4風機運轉之電壓閃爍 52
4.4.1感應型風力發電機之電壓閃爍 52
4.4.1.1併接點短路容量 53
4.4.1.2系統阻抗角 54
4.4.1.3負載量及負載功因 55
4.4.2雙饋式感應型風力發電機之電壓閃爍分析 57
4.4.2.1併接點短路容量 59
4.4.2.2系統阻抗角 60
4.4.2.3負載量及負載功因 62
4.5本章分析討論 65
第五章 量測與模擬結果之分析 68
5.1 前言 68
5.2 風機運轉對電力系統電壓閃爍之影響 68
5.3風力發電機組之電壓閃爍探討 69
5.3.1電壓閃爍評估公式 69
5.3.2實際分析 70
5.3.2模擬分析 71
5.4利用電流變動評估風機之電壓閃爍 72
5.4.1電流變動 73
5.4.2模擬分析 74
5.4.3實際分析 75
5.5本章討論 78
第六章 結論 80
6.1總結 80
6.2未來研究方向 81
參考文獻 82
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