Overvoltage Suppression for UHV Transmission Lines  

作　　者：李永丽 刘太华 李仲青 景雷 龙英 范建忠 

机构地区：[1]Key Laboratory of Power System Simulation and Control of Ministry of Education, Tianjin University [2]ABB (China) Research Ltd.

出　　处：《Transactions of Tianjin University》2008年第3期222-225,共4页天津大学学报（英文版）

基　　金：ABB (China) Research Ltd. and National Natural Science Foundation of China(No.50477037)

摘　　要：The overvoltage phenomena of ultra high voltage (UHV) transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating experiences of extra high voltage (EHV) transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV transmission lines by protection and control strategies are discussed. Through the cooperation among the recloser, shunt reactor, tripping and closing resistance, and metal oxide varistor(MOV), the overvoltage can be restrained within an acceptable level.The overvoltage phenomena of ultra high voltage （UHV） transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating experiences of extra high voltage （EHV） transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV transmission lines by protection and control strategies are discussed. Through the cooperation among the recloser, shunt reactor, tripping and closing resistance, and metal oxide varistor（MOV）, the overvoltage can be restrained within an acceptable level.

关 键 词：OVERVOLTAGE RECLOSING relay protection shunt reactors SUPPRESSION UHV transmission lines 

分 类 号：TN811[电子电信—信息与通信工程]