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題名 | 架空輸配電線磁場強度分析與雷擊模擬=Magnetic Intensity Analysis and Lightning Simulation for Overhead Transmission and Distribution Lines |
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作者 | 李建興; 徐士賢; 潘柏勳; | 書刊名 | 台電工程月刊 |
卷期 | 697 民95.09 |
頁次 | 頁52-65 |
分類號 | 448.35 |
關鍵詞 | 磁場強度; 畢奧薩瓦定理; 馬克斯威爾方程式; 輸電線; 雷擊; 閃絡; Magnetic intensity; Biot-Savart law; Maxwell equation; Transmission line; Lightning; Flashover; |
語文 | 中文(Chinese) |
中文摘要 | 本文以畢奧薩瓦定理為基礎,分析臺電公司69kV與11.4kV架空輸配電線周圍之磁場強度,並與實際量測比較,再假設不同排列方式之輸電線並模擬其磁場變化,藉以探討輸電線下方之磁場大小以作為磁場抑制參考。除此外,本文亦模擬架空輸電線遭受雷擊之情形,利用CDEGS軟體精確的建立架空輸電線路與接地結構,探討當閃電直接擊中架空地線、輸電線或輸電鐵塔之過電壓情形,以及有無裝設避雷器之影響,同時也進一步分析架空地線和電桿遭受電擊時所造成的逆閃絡情形。 |
英文摘要 | This paper proposes a model for analyzing magnetic intensity around 69 kV and 11.4kV overhead power transmission and distribution lines in the system of Taiwan Power Company based on Biot-Savart law as well as measuring the on-site magnetic intensity. Moreover, we simulate magnetic intensities under different arrangements of power lines to investigate whether the intensity is within the suggestion. Additionally, we simulate the situation when the ligntning strikes on overhead power lines. The power line and its grounding system can be constructed accurately by using CDEGS software packages. The effect of installation arrester will be estimated when the ligntning strikes on the overhead ground wire, conductor wire and tower. Finally, we discuss the flashover when the lightning occurs. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。