抑制高压直流输电系统换相失败的可控串联电阻  

Controllable Series Resistance for Suppressing Commutation Failure in High-voltage Direct Current Transmission Systems

作　　者：丁蕴之 李征帆 DING Yunzhi;LI Zhengfan(Ultra High Voltage Company,State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750000,China)

机构地区：[1]国网宁夏电力有限公司超高压公司,宁夏银川750000

出　　处：《科技创新与生产力》2025年第4期85-87,91,共4页Sci-tech Innovation and Productivity

摘　　要：为有效抑制高压直流输电系统换相失败问题,本文提出以可控串联电阻为基础的应对方案,从主电路、控制逻辑两方面介绍了可控串联电阻的主要构成,应用PSCAD/EMTDC电磁暂态模型开展了仿真试验,经仿真试验研究结果验证可知,本研究所提出的基于可控串联电阻的应对方案可有效抑制高压直流输电系统换相失败问题,可将CSR换相失败抑制能力提升6.0~7.2倍。In order to effectively suppress the problem of commutation failure in high-voltage direct current transmission systems,this paper proposes a response scheme based on controllable series resistance.The main components of controllable series resistance are introduced from two aspects:the main circuit and control logic.Simulation experiments are conducted using PSCAD/EMTDC electromagnetic transient models,and it is verified by simulation experiment research results that the proposed response scheme based on controllable series resistance can effectively suppress the commutation failure problem in high-voltage direct current transmission systems,and can improve the CSR commutation failure suppression ability by 6.0~7.2 times.

关 键 词：高压直流输电系统 换相失败 可控串联电阻 

分 类 号：TM8[电气工程—高电压与绝缘技术] TM721.1TM743