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題 名 | Analysis of the Skin Effect for Calculating Frequency-Dependent Impedance of the TRTS Power Rail=臺北市捷運系統導電軌之集膚效應分析及頻變阻抗計算 |
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作 者 | 王耀諄; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:3 1999.05[民88.05] |
頁 次 | 頁419-428 |
分類號 | 557.85 |
關鍵詞 | 捷運系統; 導電軌; 集膚效應; 頻變阻抗; Skin effect; Traction power systems; Power rail frequency-dependent impedance; |
語 文 | 英文(English) |
中文摘要 | 直流電氣鐵路的頻變阻抗參數在其暫態分析及諧波分析方面皆具有基本的重要 性。本文採用磁耦合等效電路法來分析台北市捷運系統導電軌(一稱第三軌)之集膚效應及計 算其頻變阻抗。使用傳統的磁耦合等效電路法,在頻率增高時必須增加導電軌截面的分割數 以維持一定的精確度,因而導致計算時間及矩陣階數增加甚快。本文提出一種改良法,可以 減少導電軌截面的分割數,但不致影響計算的精確度,因此在分析高頻的集膚效應時,計算 時間及矩陣的階數都較傳統方法減少。 |
英文摘要 | Knowledge of frequency-dependent impedance is essential for transient and harmonic analyses of a DC traction power system. This paper deals with the skin effect of the power rail (also known as the conductor rail or third rail) used in the Taipei Rapid Transit System (TRTS). The methods of coupled-inductance based on subdivision of conductors is employed to calculate the current distribution and the frequency-dependent impedance of the power rail under the skin effect. This paper also proposes a method to reduce the number of subconductors required to achieve a prescribed level of accuracy at high frequency so that computation time and matrix dimensions are reduced. |
本系統中英文摘要資訊取自各篇刊載內容。