CAJ | 학술논문

基于分析和试验数据，分别对光伏水泵系统中各组成部件的运行特性进行数据拟合，从而实现对各部件与系统的数学建模，建立了光伏水泵系统的出水量预测模型。对不同辐射强度下的出水量预测值与试验值进行对比，发现当辐射强度高于500 W/m2时，该预测模型的预测结果与试验值的相对误差值均小于5％。分别对一年中光照辐射量最高与最低两天的系统出水总量进行预测与试验对比，发现全天出水总量的预测相对偏差都在3％以内，说明所建立的模型能够较为精确地预测系统的全天出水量。研究为光伏水泵性能预测和系统配置提供参考。
기우분석화시험수거，분별대광복수빙계통중각조성부건적운행특성진행수거의합，종이실현대각부건여계통적수학건모，건립료광복수빙계통적출수량예측모형。대불동복사강도하적출수량예측치여시험치진행대비，발현당복사강도고우500 W/m2시，해예측모형적예측결과여시험치적상대오차치균소우5％。분별대일년중광조복사량최고여최저량천적계통출수총량진행예측여시험대비，발현전천출수총량적예측상대편차도재3％이내，설명소건립적모형능구교위정학지예측계통적전천출수량。연구위광복수빙성능예측화계통배치제공삼고。
Basedontheanalysisandexperimentaldata,eachpartofthephotovoltaicpumpingsystemincludingphotovoltaicar-ray,controller,motor,centrifugal pump and pipeline was modeled by means of simple equations and data fitting.According to the linear relationship between irradiation and output power,the controller and motor efficiency at different input power were obtained through experiment.The characters of a centrifugal pump between flow,head and efficiency were obtained through test.The pump performance in all conditions was obtained through the affinity method.The prevision method for discharge of the pumping system was established by these equations and the result was compared with experimental result at different irradiation levels.The result shows that the simulation result is close to the real.The precision was in 5%when the irradiation was more than 500 W/m2 .Com-parisons of the discharge throughout the day between predicted data and experimental ones were made in the two days of highest and lowest irradiation during a year.The result indicates that the precision were less than 3%.It shows that the model can predict total water throughout the day accurately.It provides a reference for predicting the performance of photovoltaic pumping system and system configuration.