The Regular Characteristics of Conductor Icing along with Altitude in Guizhou Area
Icing disaster is a great threat to electric power lines,Guizhou province belongs to the ice disaster areas,therefore,understanding the distribution of conductor icing in Guizhou area is of great significance for the circuit design and choice of icing disaster prevention measures.Analysis and summary of the causes and distribution characteristics of ice covering in Guizhou region found that the influence of altitude on ice covering was significant,Further analysis of investigation ice thickness(thirty-year return period as an example a case)and altitude relationship that ice thickness with the altitude curved growth trend,it shows that altitude is an important influence factor of icing,but due to the complexity of icing formation mechanism,it is closely related to climate and topography and other factors,the general modeling of the interference factors are more,can not be a unified correlation analysis;Therefore,this article based on the similarity principle of climate and terrain characteristics to partition icing similarity of guizhou province,to ensure the similarity of icing formation in the area of process similar to that in the process of modeling greatly reduces greatly reduced the impact of factors other than altitude,and then realized the feasibility of altitude and ice thickness correlation analysis;By regression analysis of each district basic data,established a statistical model of ice thickness of thirty-year,fifty-year and a-hundred-year return period and altitude in Guizhou area;Upon examination,the results of the model with high accuracy and reliability in the ice on the order of magnitude,it can be reflected the regular characteristics of different return periods icing thickness along with altitude,it is also a key element in drawing icing distribution map of Guizhou Province.
Guizhou area icing altitude regular characteristic similarity partition statistical model
LI Hao TAN Wei
China Southern Power Grid Research Institute China Southern Power Grid Guangdong China Guizhou Electric Power Design & Research Institute Power Construction Corporation of China Guizhou C
国际会议
重庆
英文
1-7
2017-09-25（万方平台首次上网日期，不代表论文的发表时间）