本文關(guān)鍵詞：特高壓變電站人體工頻電場(chǎng)暴露水平評(píng)估　出處：《中國(guó)電機(jī)工程學(xué)報(bào)》2014年24期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 特高壓 變電站 人體 工頻電場(chǎng) 電流密度 有限元法

【摘要】：人體在特高壓變電站內(nèi)的工頻電場(chǎng)暴露水平一直受到研究人員的關(guān)注,但相關(guān)研究卻并不多見(jiàn)。以特高壓長(zhǎng)治站為研究對(duì)象,采用ANSYS諧響應(yīng)分析方法,通過(guò)子模型技術(shù)實(shí)現(xiàn)了特高壓變電站內(nèi)含人體空間域的工頻電場(chǎng)分布計(jì)算。研究了人體的電位、電場(chǎng)強(qiáng)度和電流密度分布及鞋子的影響;對(duì)比了站內(nèi)不同路徑上電場(chǎng)分布的數(shù)值計(jì)算結(jié)果與實(shí)地測(cè)量結(jié)果以及人體內(nèi)部電流的數(shù)值計(jì)算結(jié)果與理論公式計(jì)算結(jié)果;驗(yàn)證了所用計(jì)算方法的正確性與所得計(jì)算結(jié)果的準(zhǔn)確性。研究結(jié)果表明:人體內(nèi)部以傳導(dǎo)電流為主,最大感應(yīng)電流密度為9.15 mA/m2,滿足職業(yè)標(biāo)準(zhǔn)。該研究成果可以判定特高壓變電站內(nèi)工頻電場(chǎng)對(duì)人體是否安全并為后續(xù)工程提供參考。
[Abstract]:The level of human exposure to power frequency electric field in UHV substation has been concerned by researchers, but the related research is rare. Taking the UHV Changzhi Station as the research object, the ANSYS harmonic response analysis method is adopted. The power frequency electric field distribution in the space domain of human body in UHV substation is calculated by submodel technique. The potential, electric field intensity and current density distribution of human body and the influence of shoes are studied. The numerical results of the electric field distribution on different paths in the station are compared with the results of the field measurements and the results of the numerical calculation of the internal currents of the human body and the results of the theoretical formulas. The correctness of the calculation method and the accuracy of the calculated results are verified. The results show that the main inductive current is the human body, and the maximum inductive current density is 9.15 mA/m2. The research results can be used to determine whether the power frequency electric field in UHV substation is safe to human body and to provide reference for future projects.
【作者單位】： 電力設(shè)備電氣絕緣國(guó)家重點(diǎn)實(shí)驗(yàn)室(西安交通大學(xué));
【分類(lèi)號(hào)】：TM15;R14
【正文快照】： 0引言中國(guó)電力負(fù)荷與能源的分布不均衡,隨著國(guó)民經(jīng)濟(jì)的持續(xù)發(fā)展,建設(shè)具有容量大、損耗低等特點(diǎn)的特高壓電網(wǎng)已成為中國(guó)電力工業(yè)發(fā)展的必由之路[1]。然而隨著電壓等級(jí)的提高,由輸變電系統(tǒng)產(chǎn)生的工頻電磁場(chǎng)對(duì)人體的影響也日益受到社會(huì)的關(guān)注[2]。特高壓變電站內(nèi)電磁環(huán)境復(fù)雜,變，

本文編號(hào)：1380779