CAJ | 학술논문

利用民勤气象站和敦煌气象站1963—1992年太阳总辐射量、水平面直接辐射量和水平面散射辐射量及其他气象条件的观测数据，采用斜面总辐射量计算公式、RETScreen 软件、PVsyst 软件方法，对河西两座光伏电站所在地区太阳能光伏组件最佳倾角及其光伏阵列面的辐射量数值变化进行模拟计算。结果表明：3种估算方法对河西两座光伏电站的计算结果虽然略有差异，但各月变化整体趋势一致，全年可接收到的斜面总辐射量1号光伏发电站为7590 MJ／m2，2号光伏发电站为8454 MJ／m2；各月调节至最佳倾角与全年固定倾角相比，夏、冬季节接收到的斜面总辐射量明显提高，春、秋季节的变化不大，全年接收到的斜面总辐射量提高6．0％～9．1％；对比两电站太阳能辐射转化率，发现两电站对接收到的太阳能辐射转化为电量的转化率差异较大，1号光伏发电站转化率为82．2％，2号光伏发电站转化率为65．3％，电站对接收到的辐射量转化效率对电站发电量影响较大。研究结果可为太阳能资源的合理开发利用提供参考依据。
이용민근기상참화돈황기상참1963—1992년태양총복사량、수평면직접복사량화수평면산사복사량급기타기상조건적관측수거，채용사면총복사량계산공식、RETScreen 연건、PVsyst 연건방법，대하서량좌광복전참소재지구태양능광복조건최가경각급기광복진렬면적복사량수치변화진행모의계산。결과표명：3충고산방법대하서량좌광복전참적계산결과수연략유차이，단각월변화정체추세일치，전년가접수도적사면총복사량1호광복발전참위7590 MJ／m2，2호광복발전참위8454 MJ／m2；각월조절지최가경각여전년고정경각상비，하、동계절접수도적사면총복사량명현제고，춘、추계절적변화불대，전년접수도적사면총복사량제고6．0％～9．1％；대비량전참태양능복사전화솔，발현량전참대접수도적태양능복사전화위전량적전화솔차이교대，1호광복발전참전화솔위82．2％，2호광복발전참전화솔위65．3％，전참대접수도적복사량전화효솔대전참발전량영향교대。연구결과가위태양능자원적합리개발이용제공삼고의거。
By using the relevant formulas,RETScreen software,PVsyst software and other methods,data of global solar radia-tion,direct radiation and horizontal plane scattered radiation,and other meteorological conditions observed in Minqin and Dun-huang weather stations during 1963-1992 are applied to calculate the best angle of radiation changes in the value of the PV array under the surface inclination at two solar PV power stations in Hexi area.The results show that the calculations of two west pho-tovoltaic power stations by three estimation methods have similar month trend with minor difference;the total received radiation of full year is 7 590 MJ/m2 in station 1 and 8 454 MJ/m2 in station 2.Compared the optimum angle of each month with the annual fixed angle,the significant improvement of solar energy efficiency happens in summer and winter,while the change is insignifi-cant in spring and autumn,The overall increase of efficiency is 6.0%-9.1 %.The efficiency of transforming solar energy into electricity in the two power plants is significantly different,which is 82.2% at station 1 and 65.3% at station 2.It is evident that efficiency has great impact on the power generation capacity.This study provides important references to the rational development and utilization of solar energy resources.