电力科学与工程
電力科學與工程
전력과학여공정
INFORMATION ON ELECTRIC POWER
2015年
4期
1-5
,共5页
陈锡阳%刘洋%马燕鹏%刘云鹏%吴振扬
陳錫暘%劉洋%馬燕鵬%劉雲鵬%吳振颺
진석양%류양%마연붕%류운붕%오진양
载流量%ANSYS仿真计算%线性回归%修正因数
載流量%ANSYS倣真計算%線性迴歸%脩正因數
재류량%ANSYS방진계산%선성회귀%수정인수
current capacity%ANSYS simulation calculation%linear regression%correction factor
以LGJ240/40钢芯铝绞线为例,利用ANSYS软件建立数学模型,分别考虑不同季节的日照强度和国标规定值1000 W/m2,仿真得出一定载流量下的导线温度,并采用摩尔根公式求解相同条件下的导线温度,以摩尔根公式计算结果为准进行误差分析。由误差分析可知,日照强度对ANSYS仿真结果的影响不大,而误差与复合散热系数及载流量大小呈线性关系,由此,利用Matlab进行多元线性回归分析法提出修正因数,使得ANSYS仿真结果更精确。
以LGJ240/40鋼芯鋁絞線為例,利用ANSYS軟件建立數學模型,分彆攷慮不同季節的日照彊度和國標規定值1000 W/m2,倣真得齣一定載流量下的導線溫度,併採用摩爾根公式求解相同條件下的導線溫度,以摩爾根公式計算結果為準進行誤差分析。由誤差分析可知,日照彊度對ANSYS倣真結果的影響不大,而誤差與複閤散熱繫數及載流量大小呈線性關繫,由此,利用Matlab進行多元線性迴歸分析法提齣脩正因數,使得ANSYS倣真結果更精確。
이LGJ240/40강심려교선위례,이용ANSYS연건건립수학모형,분별고필불동계절적일조강도화국표규정치1000 W/m2,방진득출일정재류량하적도선온도,병채용마이근공식구해상동조건하적도선온도,이마이근공식계산결과위준진행오차분석。유오차분석가지,일조강도대ANSYS방진결과적영향불대,이오차여복합산열계수급재류량대소정선성관계,유차,이용Matlab진행다원선성회귀분석법제출수정인수,사득ANSYS방진결과경정학。
ANSYS software is adopted to establish a mathematical model.The unit volume heat release of conduc-tors can be calculated under different seasonal illumination intensities and national standard values (1 000W/m2 ) . The simulation analysis is illustrated with an example of LGJ240/40.Using the conductor parameters from the sim-ulation.Morgan formula calculation results are used to solve conductor temperatures and analysis errors.It has been proved that the effect of illumination intensity is limited on the simulation results from the analysis of errors. The error has linear relation to combined heat release coefficient and the current capacity.According to the influen-cing factors, a correction factor is obtained by using Matlab multiple linear regression analysis to get more accurate simulation calculation results.