本文選題：弓網(wǎng)電弧 + 電弧干擾��； 參考：《高電壓技術(shù)》2016年08期

【摘要】：為了有效評(píng)估高速鐵路列車電磁環(huán)境對(duì)人體健康的影響,以武漢—廣州高速鐵路列車(簡(jiǎn)稱武廣高鐵)離線電弧射頻和車內(nèi)低頻電磁暴露為對(duì)象,采用現(xiàn)場(chǎng)測(cè)試與實(shí)驗(yàn)室半實(shí)物仿真試驗(yàn)相結(jié)合的方式對(duì)弓網(wǎng)離線電弧射頻開(kāi)展了研究,即針對(duì)高鐵線路諸如電分相、錨段關(guān)節(jié)等一些易發(fā)生較大離線電弧的典型位置在武廣線開(kāi)展了現(xiàn)場(chǎng)實(shí)測(cè)來(lái)獲得高鐵內(nèi)弓網(wǎng)離線電弧高頻電場(chǎng)騷擾強(qiáng)度的頻譜特性,在車內(nèi)對(duì)窗口、中軸線、車廂連接端、關(guān)鍵設(shè)備等位置進(jìn)行了現(xiàn)場(chǎng)實(shí)測(cè)來(lái)獲得車內(nèi)低頻磁場(chǎng)特性,采用西南交大自主研發(fā)的弓網(wǎng)電弧檢測(cè)系統(tǒng)進(jìn)行了半實(shí)物仿真試驗(yàn)來(lái)獲得牽引電流、接觸壓力等參數(shù)對(duì)弓網(wǎng)離線電弧等效電場(chǎng)騷擾強(qiáng)度的影響,通過(guò)對(duì)高鐵電磁環(huán)境實(shí)測(cè)值與國(guó)家標(biāo)準(zhǔn)GB 8702—2014及國(guó)際非電離輻射防護(hù)委員會(huì)(ICNIRP)指南等標(biāo)準(zhǔn)的比較,以及鐵路從業(yè)人員一些疾病的危險(xiǎn)比評(píng)估,來(lái)分析長(zhǎng)期效應(yīng)對(duì)人體健康的影響。研究結(jié)果表明:弓網(wǎng)離線電弧頻譜主要分布在0.009~500MHz范圍內(nèi),尤以30~300 MHz之間頻譜最為豐富;通過(guò)掃頻數(shù)據(jù)計(jì)算得到電分相處弓網(wǎng)離線電弧輻射功率密度的時(shí)頻分布圖;基于點(diǎn)頻數(shù)據(jù)采用最小二乘擬合法對(duì)高鐵離線電弧電磁發(fā)射進(jìn)行統(tǒng)計(jì)分析后得到線性回歸計(jì)算式;由半實(shí)物仿真試驗(yàn)得出弓網(wǎng)離線等效電場(chǎng)騷擾強(qiáng)度與列車速度、牽引電流、弓網(wǎng)接觸壓力有關(guān);車內(nèi)低頻磁場(chǎng)磁感應(yīng)強(qiáng)度在0.102~34μT范圍內(nèi);弓網(wǎng)離線電弧高頻電磁騷擾對(duì)人體健康影響不大,低頻磁場(chǎng)符合國(guó)內(nèi)健康標(biāo)準(zhǔn)。該研究結(jié)果可以為高鐵電氣化軌道交通的設(shè)計(jì)和電磁干擾的抑制以及對(duì)人體生物電磁學(xué)影響的研究提供必要的數(shù)據(jù)支持。
[Abstract]:In order to evaluate the effect of electromagnetic environment on human health, the off-line arc radio frequency (RF) and low frequency electromagnetic exposure (LLF) in Wuhan Guangzhou High Speed Railway (WHSR) were taken as objects. The radio frequency (RF) of off-line arc of pantograph-catenary is studied by combining field test and laboratory simulation test, that is, for high-speed railway lines such as electric phase separation. Some typical locations of large off-line arcs such as anchors and joints have been measured in Wuguang line to obtain the frequency spectrum characteristics of the high frequency electric field disturbance intensity of the high frequency electric field of the inner arch and catenary arc of high speed rail, and the connecting ends of the window, the central axis line and the carriage inside the vehicle, In order to obtain the characteristics of the low frequency magnetic field in the vehicle, the key equipment is measured at the same position. The arc detection system of the pantograph-catenary developed by Southwest Jiaotong University is used to carry out the hardware-in-the-loop simulation test to obtain the traction current. The influence of contact pressure and other parameters on the equivalent electric field disturbance intensity of the arc off line is compared with the national standard GB8702-2014 and the guidelines of the International Committee on Non-ionizing radiation Protection (ICNIRP), etc, by comparing the measured values of the electromagnetic environment of high iron with those of the National Standard GB8702-2014, and the International Commission on Non-ionizing radiation Protection. And railway workers to assess the risk of some diseases to analyze the long-term effects on human health. The results show that the spectrum of off-line arc is mainly distributed in the range of 0.009~500MHz, especially in the range of 30 ~ 300 MHz, and the time-frequency distribution of the radiation power density of the off-line arc is obtained by the calculation of the sweep frequency data. Based on the point frequency data, the linear regression formula is obtained by statistical analysis of electromagnetic emission of off-line arc based on the least square fitting method, and the equivalent electric field disturbance intensity and train velocity and traction current are obtained from the hardware-in-the-loop simulation test. The magnetic induction intensity of the low frequency magnetic field in the vehicle is in the range of 0.10234 渭 T, the high frequency electromagnetic disturbance of the off-line arc has little effect on human health, and the low frequency magnetic field conforms to the domestic health standard. The results of this study can provide necessary data support for the design of high-speed electrified rail transit, the suppression of electromagnetic interference and the study of biological electromagnetic effect on human body.
【作者單位】： 西南交通大學(xué)電氣工程學(xué)院;
【基金】：民航創(chuàng)新引導(dǎo)資金(MHRD20140109)~~
【分類號(hào)】：R146;U270.381
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本文編號(hào)：1912645