变电站快速暂态过电压的分析  

Analysis of Fast Transient Overvoltage in Substations

作　　者：赵晨惠[1] 褚炳上[1] 

机构地区：[1]东北电力大学,吉林吉林132012

出　　处：《广东电力》2011年第4期1-4,38,共5页Guangdong Electric Power

摘　　要：应用电磁暂态计算程序(the alternative transient program-electormagnetic transient program,ATP/EMTP),将雷电模型、变电站各元件的计算模型和进线段相结合来研究雷电侵入波对变电站和杆塔的影响。为此介绍了雷电模型和变电站各元件的计算模型,并通过计算雷电侵入波的雷电流、雷电压,分析了变电站各雷击点或杆塔的防雷效果,指出了最严重的系统运行方式和杆塔布置情况。以新立变电站为例,准确地计算出变电站内各种设备的过电压值,并提出防止过电压的措施。The alternative transient program-electromagnetic transient program（ATP/EMTP） is applied and lightning models,calculation model of components in substations and incoming lines are combined to study the impact of lightning surge on poles and towers in substations.Therefore,the paper introduces lightning models and calculation models of components in substations and it analyzes effectiveness of lightning protection of each lightning strike point or poles and towers by calculating lightning current and lightning voltage of lightning surge.The most serious operation mode of system and arrangement of poles and towers are brought forward.The article takes Xinli substation as an example and accurately figures out overvoltage of various equipments in the substation,it also recommends some countermeasures against overvoltage.

关 键 词：变电站 电磁暂态计算程序 过电压 雷电侵入波 

分 类 号：TM74[电气工程—电力系统及自动化] TM75