本文關(guān)鍵詞：基于核密度估計(jì)的輸電線路走廊桿塔-地閃復(fù)合密度統(tǒng)計(jì)方法　出處：《高電壓技術(shù)》2017年05期 　論文類型：期刊論文

  更多相關(guān)文章： 區(qū)域化防雷 核密度估計(jì) 輸電線路走廊 雷害密度 地閃 線路桿塔復(fù)合密度 相關(guān)系數(shù)

【摘要】：近年來由于我國(guó)土地資源緊缺,多回線路共用輸電線路走廊十分普遍,線路走廊覆蓋面積與雷電活動(dòng)范圍相比很有限,且走廊內(nèi)桿塔密度不一,因此存在如何衡量地閃活動(dòng)對(duì)線路走廊影響的問題。用核密度估計(jì)方法對(duì)百色地區(qū)輸電線路走廊地閃密度和雷害密度進(jìn)行了統(tǒng)計(jì),并結(jié)合相關(guān)系數(shù)的計(jì)算,交叉校驗(yàn)得到地閃密度、雷害密度、線路桿塔密度等參數(shù)之間的相關(guān)性。通過對(duì)比分析,得到雷害密度與"地閃密度和線路桿塔復(fù)合密度"的相關(guān)性最高,為0.85,而此前常用來評(píng)價(jià)雷電活動(dòng)的地閃密度和雷害密度之間的相關(guān)系數(shù)僅為0.51。由此提出"地閃 線路桿塔復(fù)合密度"的概念,該密度可有效地衡量輸電線路走廊內(nèi)的雷害分布,有助于區(qū)域化防雷的進(jìn)行。
[Abstract]:In recent years, due to the shortage of land resources in China, the multi-circuit common transmission line corridor is very common, the coverage area of the corridor is very limited compared with the lightning activity range, and the density of the tower in the corridor is different. Therefore, there is a problem of how to measure the influence of ground lightning activity on the line corridor. The lightning density and lightning density of Baise transmission line corridor are calculated by using the nuclear density estimation method, and the correlation coefficient is calculated. The correlation between ground lightning density, lightning damage density and line tower density is obtained by cross-check, and the correlation between lightning damage density and "ground lightning density and line tower composite density" is the highest through comparison and analysis. It is 0.85, and the correlation coefficient between lightning lightning density and lightning lightning density is only 0.51.Therefore, the concept of "composite density of tower of ground lightning line" is put forward. This density can effectively measure the distribution of lightning damage in the transmission line corridor and is helpful to the regional lightning protection.
【作者單位】： 武漢大學(xué)電氣工程學(xué)院;中信建筑設(shè)計(jì)研究總院有限公司;國(guó)網(wǎng)湖北省電力公司襄陽(yáng)供電公司;
【基金】：國(guó)家自然科學(xué)基金青年基金(51307125)~~
【分類號(hào)】：TM75;TM863
【正文快照】： 0引言1據(jù)國(guó)家電網(wǎng)公司2012年架空輸電線路運(yùn)行報(bào)告統(tǒng)計(jì),2006—2012年,110 k V及以上總長(zhǎng)651 819km線路的跳閘故障中,雷擊跳閘平均占總故障數(shù)的47.6%,因此雷電活動(dòng)是影響電網(wǎng)安全穩(wěn)定的重 要因素之一[1]。近年來,我國(guó)輸電工程建設(shè)用地日趨飽和,架空線路走廊資源日益減少,共用

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