本文關(guān)鍵詞： 太陽輻射強(qiáng)度 架空線 載流量 大氣厚度 輻射衰減系數(shù)　出處：《華南理工大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年11期 　論文類型：期刊論文

【摘要】：為了克服架空線路載流量計(jì)算時(shí)將太陽輻射強(qiáng)度視為定值的缺陷,充分挖掘?qū)Ь�潛在的輸送能力,首先以100 W/m~2的太陽輻射強(qiáng)度為梯度,討論了太陽輻射強(qiáng)度取值對(duì)不同截面導(dǎo)線載流量計(jì)算的影響;然后,基于大氣對(duì)太陽輻射的衰減規(guī)律,引入輻射衰減系數(shù),建立太陽輻射強(qiáng)度的實(shí)時(shí)計(jì)算模型,該模型可根據(jù)不同地區(qū)的經(jīng)緯度以及具體時(shí)刻,將太陽輻射強(qiáng)度的計(jì)算轉(zhuǎn)化為太陽射線穿過大氣層厚度的計(jì)算,達(dá)到評(píng)估某地區(qū)實(shí)時(shí)太陽輻射強(qiáng)度的目的;最后,結(jié)合山西大同地區(qū)2012年的氣象監(jiān)測(cè)數(shù)據(jù)和IEEE 738—2006提供的方法,對(duì)所提模型的準(zhǔn)確性進(jìn)行了檢驗(yàn),發(fā)現(xiàn)模型計(jì)算的太陽輻射強(qiáng)度與實(shí)際測(cè)量值基本吻合,最大誤差在70 W/m~2以內(nèi),且文中方法比IEEE方法更接近監(jiān)測(cè)數(shù)據(jù),更能滿足架空線路載流量計(jì)算的要求.
[Abstract]:In order to overcome the defect that the solar radiation intensity is regarded as a fixed value in the calculation of overhead line load, the potential transmission capacity of the wire is fully excavated. Firstly, the solar radiation intensity of 100 W / m ~ 2 is taken as the gradient. The influence of the solar radiation intensity on the calculation of the carrying capacity of different cross-section conductors is discussed. Then, based on the attenuation law of atmospheric radiation to the sun, the radiation attenuation coefficient is introduced, and the real-time calculation model of solar radiation intensity is established. The model can be calculated according to the latitude and longitude of different regions and the specific time. The calculation of solar radiation intensity is transformed into the calculation of the thickness of solar radiation through the atmosphere to evaluate the real time solar radiation intensity in a certain area. Finally, combined with the meteorological monitoring data of 2012 in Datong area of Shanxi Province and the method provided by IEEE 738-2006, the accuracy of the proposed model is verified. It is found that the solar radiation intensity calculated by the model basically coincides with the actual measured value, and the maximum error is less than 70 W / mm2, and the method in this paper is closer to the monitoring data than the IEEE method. More can meet the overhead line load capacity calculation requirements.
【作者單位】： 華南理工大學(xué)電力學(xué)院;
【分類號(hào)】：TM726.3;;TM732
【正文快照】： 國家電網(wǎng)公司在“十三五”期間繼續(xù)穩(wěn)步推進(jìn)不利于架空線路長期載流量的確定和實(shí)時(shí)載流量的智能電網(wǎng)的建設(shè),構(gòu)建更安全、高效的電網(wǎng),并將評(píng)估.“分析、預(yù)測(cè)未來電力需求”作為主要研究內(nèi)容之長期以來,國內(nèi)外學(xué)者對(duì)太陽輻射強(qiáng)度的計(jì)算一.作為電網(wǎng)大動(dòng)脈的架空線輸電線路,其動(dòng)態(tài)

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