本論文主要在分析鋼鐵廠之電力諧波污染嚴重性，並提出合理的濾波器改善措施。文中選擇國內某一貫作業鋼鐵廠為研究對象，首先探討其電力系統架構並收集各電力元件之相關數據，詳細調查各變電所負載之用電特性，並建立其諧波等效模型，然後對工廠中如整流器、變週器與變頻器等主要諧波產生設備進行理論推導與實際量測的工作，最後使用諧波負載潮流程式計算出工廠各主要變電所的等效阻抗、各級諧波電壓電流的大小與電壓及電流總諧波失真率百分比，據此判斷工廠現有系統諧波污染的嚴重性及具體可行的改善措施，以提高整個電力系統的供電品質。
由於鋼鐵廠在軋鋼過程所產生之諧波電流具有時變性及隨機性，為了更廣泛的計算諧波失真率的變動範圍，以提供濾波器之設計參考使用，本論文採用快照諧波潮流分析及隨機諧波潮流分析二種方法計算各匯流排之總諧波電壓失真，經隨機諧波潮流模擬所求出的諧波電壓期望值，可探討隨機變化之諧波電壓失真率的變動範圍。

The objective of this thesis is to analyze the power harmonic distortion of a steel factory and to mitigate the distortion by passive filters. The mathematical harmonic model of the industrial power system is built according to the power system network and the substation load characteristics of the steel factory. The substation load is converted as equivalent impedance, the harmonic voltage and harmonic current, and the total harmonic distortion of bus voltages and currents are then derived by the harmonic load flow analysis with the actual harmonic current data of the converters, cycloconverters, and VVVF in the plant.
Due to the dynamic load behavior the stochastic harmonic current generated by various components is varied with the operation modes of all plants. To investigate the harmonic distortion of the steel factory with statistics oriented manner, the stochastic harmonic load flow analysis is executed to find the 95% confidential interval of system harmonic distortion.By this way, the effectiveness of passive filters for mitigation of harmonic distortion can be evaluated more accurately as compared to the conventional harmonic load flow analysis.

中文摘要 i
英文摘要 iii
目錄 v
圖目錄 viii
表目錄 xv
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 論文內容概要 2
第二章 電力系統諧波分析 5
2-1 諧波定義 5
2-2 電力元件諧波模型 6
2-3 諧波源 12
2-4 諧波管制標準 26
2-5 諧波負載潮流分析 28
2-6 匯流排諧波等效阻抗 31
第三章 鋼鐵廠諧波失真分析與改善 33
3-1 製程說明 33
3-2 電力系統架構 38
3-3 負載潮流分析 43
3-4 鋼鐵廠諧波量測 52
3-4-1熱軋二廠之諧波量測 52
3-4-2 冷軋二廠之諧波量測 76
3-4-3熱軋一廠之諧波量測 82
3-4-4冷軋一廠之諧波量測 88
3-4-5 161kV MS2匯流排之諧波量測 94
3-5 諧波失真模擬分析 97
3-5-1 熱軋二廠之諧波模擬分析 97
3-5-2 冷軋二廠之諧波模擬分析 110
3-5-3 冷軋及熱軋一廠之諧波模擬分析 112
3-5-4 161kV MS2匯流排之諧波模擬分析 113
3-6 濾波器改善建議 114
3-6-1 冷軋二廠之諧波改善建議 114
3-6-2 熱軋一廠與冷軋一廠之諧波改善建議 116
第四章 隨機諧波潮流分析 119
4-1隨機負載模型原理 119
4-2隨機諧波潮流模型建立 120
4-3 實例模擬分析 121
4-4 本章結論 127
第五章 結論與未來發展方向 129
5-1 結論 129
5-2 未來發展方向 131
參考文獻 132

[1]University of Texas at Arlington, “The Effects of Reduced Voltage on the Operation and Efficiency of Electric Systems”, Vol. 11, EPRI Report. EL.3591, 1984.
[2]K. S. Smith and R. Li, “Input Current Harmonic Analysis of Pseudo 12-Pulse 3-Pulse to 6-Pulse Cycloconverters”, IEEE Trans. on Power Electronics, Vol. 11, No. 4, July 1996.
[3]W. A. Hill, E. Y. Y. Ho and I. J. Neuzil, “Dynamic Behavior of Cycloconverter System”, IEEE Trans. on Industry Applications, Vol. 27, No. 4, July/August 1991.
[4]J. Arrillaga and N. R. Watson, “Power System harmonics”, Vol. II, John Wiley & Sons Ltd, New York, 2004.
[5]IEEE Std. 519-1992, “IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems,” April 1993.
[6]石金福，呂文隆，”電力諧波分析及改善”，第二十二屆電力研討會論文集，pp. 1046-1050.
[7]Y. H. Yan, C. S. Moo, and C. S. Chen, “Harmonic Analysis for Industrial Customers”, Proceeding of 1992 IEEE IAS Annual Meeting, pp.1579-1583.
[8]N. B. Hingorani and M. F. Burbery, “Simulation of AC System Impedance in HVDC System Studies”, IEEE Transactions on Power Apparatus and Systems, Vol. PAS-89, May/June 1970, pp.820-828.
[9]許振廷，陳朝順，”中鋼電力系統諧波研究期末報告”，民國九十五年。
[10]J. K. Phipps, J. P. Nelson and P. K. Sen, “Power quality and harmonic distortion on distribution systems”, IEEE Trans. on Industry Applications, Vol. 30, No. 2, pp. 476-484, March-April 1994.
[11]莊慧仁，”捷運供電系統規畫與諧波改善策略”，中山大學博士論文，民國九十一年。
[12]J. F. Dopazo, O. A. Klitin, and A. M. Sasson, “Stochastic Load Flows,”IEEE Trans. on Power Apparatus and Systems, Vol. PAS-94, No. 2, Mar./Apr. 1975,pp.299-309.
[13]K. Li, “State Estimation for Power Distribution System and Measurement Impacts,”IEEE Trans. on Power Systems,Vol. 11, No. 2,May 1996,pp.911-916.
[14]G. J. Anders, “Probabilistic Concepts in Electric Power System”, John Wiley & Sons, New York,1990.
[15]Y. Y. Hong and L. H. Lee, “Stochastic Voltage-Flicker Power Flow”, IEEE Trans. on Power Delivery, Vol. 15, No. 1, Jan. 2000, pp.407-411.
[16]江榮城，”電力品質實務(一)”，全華科技圖書股份有限公司，民國八十九年。
[17]顏義和，”電力系統諧波問題分析及改善策略之研究”，中山大學博士論文，民國八十一年。
[18]周宏亮，吳晉昌，吳坤德，陳佐睦，張家豪，”被動式電力濾波器與混合式電力濾波器並聯運轉之研究”，第二十二屆電力研討會論文集，pp.1523-1527。