特高压柔直站换流变阀侧交流进线故障建模与仿真研究  

Modeling and Simulation of an AC Incoming Line Fault on the Converter Valve Side of a VSC-UHVDC Station

作　　者：章功辽 罗绪崧 李晓霞 胡付有 ZHANG Gongliao;LUO Xusong;LI Xiaoxia;HU Fuyou(Liuzhou Bureau of CSG EHV Power Transmission Company,Guangxi Liuzhou 545000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司柳州局,广西柳州545000

出　　处：《广西电力》2021年第6期35-40,共6页Guangxi Electric Power

摘　　要：本文基于特高压多端柔性直流示范工程,依靠PSCAD/EMTDC仿真平台,分析了某特高压换流站在不控充电结束以后,换流变阀侧产生单相金属性接地故障,通过计算分析与仿真验证,找出本类故障的发展过程以及该类故障特征,探讨在该类故障时特高压柔性直流换流站的保护配置是否合理,提高特高压柔性直流换流站运行稳定性。Based on the multi-terminal VSC-UHVDC demonstration project and relying on the PSCAD/EMTDC simulation platform,this paper analyzes the single-phase metallic ground fault on the converter valve side of a UHV converter station after uncontrolled charging.Through computational analysis and simulation verification,the development process of this type of fault is clarified and fault characteristics are found.It is discussed whether the protection configuration of the VSC-UHVDC converter station is reasonable in case of such faults,so as to improve the operating stability of the station.

关 键 词：特高压柔性直流 单相金属性接地故障 PSCAD 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM743