本文關鍵詞：架空線路電磁散射的混合建模快速算法　出處：《高電壓技術》2015年12期 　論文類型：期刊論文

  更多相關文章： 電磁散射 矩量法 多導體傳輸線 混合算法 連接耦合 近距離耦合

【摘要】：由于輸電線路電磁散射的分析對象是桿塔陣列與架空線復合的金屬結構,目前的方法都是將桿塔和架空線作為整體,應用矩量法開展計算,這樣形成的矩陣規(guī)模龐大,計算耗時冗長,甚至可能無法計算。為此提出了"矩量法+多導體傳輸線混合算法"的思路建立整個架空線路,分析了桿塔和傳輸線的全耦合、半耦合、無耦合等情況下的處理方式,最后通過具體算例比較了采用全矩量法和"矩量法+多導體傳輸線混合算法"的計算量、存儲量及計算精度。研究表明,利用近距離耦合模型在30 MHz時,與精確解的差異不超過2%;利用連接耦合模型,在低于10 MHz的情況下,與精確解差異不超過5%。
[Abstract]:Because the analysis object of transmission line electromagnetic scattering is the metal structure which is composed of tower array and overhead wire, the current methods are to take the tower and overhead wire as a whole, and apply the method of moment to carry out the calculation. The matrix formed in this way is large in scale, time-consuming in calculation, and may not even be able to be calculated. Therefore, the idea of "hybrid algorithm of mom multi-conductor transmission lines" is proposed to establish the whole overhead transmission line. In this paper, the full coupling, half coupling and no coupling of tower and transmission line are analyzed. At last, the calculation amount of the method of full moment and the mixed algorithm of multiconductor transmission line using the method of moment is compared by a concrete example. Storage capacity and calculation accuracy. The results show that the difference between the model and the exact solution is not more than 2 when the close-coupled model is used for 30 MHz. In the case of less than 10 MHz, the difference between the coupling model and the exact solution is not more than 5%.
【作者單位】： 中國電力科學研究院;華北電力大學新能源電力系統(tǒng)國家重點實驗室;
【基金】：國家電網(wǎng)公司科技攻關團隊項目(SG11017)~~
【分類號】：TM75
【正文快照】： 0引言1基于嚴格理論模型的積分方程方法—矩量法(MOM),具有求解收斂速度快,計算結果精度高的優(yōu)點,在輸電線路電磁散射分析中得到了廣泛應用[1-4],其計算原理、基函數(shù)和權函數(shù)選取、矩陣求解已在相關文獻中詳細闡述[5-8],中國電力科學研究院也應用這一方法對電磁散射的計算進行

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