基于PSCAD的自耦变空载投运谐振过电压仿真分析  

PSCAD-based Simulative Analysis of Resonant Overvoltage upon No-load Switching of Autotransformer

作　　者：石小帅 顾智广 仲昭峰 陆聪 SHI Xiaoshuai;GU Zhiguang;ZHONG Zhaofeng;LU Cong(State Grid Yili Yihe Power Supply Co.,Ltd.,Yining 835000,China;Anhui Zhengguang Electric Power Technology Co.,Ltd.,Hefei 230000,China)

机构地区：[1]国网伊犁伊河供电有限责任公司,新疆伊宁835000 [2]安徽正广电电力技术有限公司,安徽合肥230000

出　　处：《电工技术》2023年第21期150-151,153,共3页Electric Engineering

摘　　要：对大型自耦变空载投切过程中产生的谐振过电压问题进行仿真,结果表明变电站避雷器、并联电抗器等装置对谐振过电压具有良好的阻尼作用,谐振过电压不会超出变电站限压能力。A simulative analysis on resonant overvoltage caused by no-load switching of large autotransformer was carried out in the present work.The results showed that substation′s lightning arrester,shunt reactor and other devices have good damping effect on resonant overvoltage,and the resonant overvoltage will not exceed the voltage limiting capacity of substation.

关 键 词：自耦变 谐振过电压 避雷器 

分 类 号：TM401[电气工程—电器]