本文關(guān)鍵詞：架空線(xiàn)路電磁散射的混合建模快速算法　出處：《高電壓技術(shù)》2015年12期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 電磁散射 矩量法 多導(dǎo)體傳輸線(xiàn) 混合算法 連接耦合 近距離耦合

【摘要】：由于輸電線(xiàn)路電磁散射的分析對(duì)象是桿塔陣列與架空線(xiàn)復(fù)合的金屬結(jié)構(gòu),目前的方法都是將桿塔和架空線(xiàn)作為整體,應(yīng)用矩量法開(kāi)展計(jì)算,這樣形成的矩陣規(guī)模龐大,計(jì)算耗時(shí)冗長(zhǎng),甚至可能無(wú)法計(jì)算。為此提出了"矩量法+多導(dǎo)體傳輸線(xiàn)混合算法"的思路建立整個(gè)架空線(xiàn)路,分析了桿塔和傳輸線(xiàn)的全耦合、半耦合、無(wú)耦合等情況下的處理方式,最后通過(guò)具體算例比較了采用全矩量法和"矩量法+多導(dǎo)體傳輸線(xiàn)混合算法"的計(jì)算量、存儲(chǔ)量及計(jì)算精度。研究表明,利用近距離耦合模型在30 MHz時(shí),與精確解的差異不超過(guò)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(guò)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(guó)電力科學(xué)研究院;華北電力大學(xué)新能源電力系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家電網(wǎng)公司科技攻關(guān)團(tuán)隊(duì)項(xiàng)目(SG11017)~~
【分類(lèi)號(hào)】：TM75
【正文快照】： 0引言1基于嚴(yán)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(jì)算結(jié)果精度高的優(yōu)點(diǎn),在輸電線(xiàn)路電磁散射分析中得到了廣泛應(yīng)用[1-4],其計(jì)算原理、基函數(shù)和權(quán)函數(shù)選取、矩陣求解已在相關(guān)文獻(xiàn)中詳細(xì)闡述[5-8],中國(guó)電力科學(xué)研究院也應(yīng)用這一方法對(duì)電磁散射的計(jì)算進(jìn)行

【參考文獻(xiàn)】

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