单相故障类型自动识别逻辑优化对高压直流系统影响分析  

Analysis of Influence of Logic Optimization for Automatic Identification of Single-phase Fault Type on HVDC System

作　　者：代书龙 朱凤来 范冬春[1] 杨茂 辛亮 陆健 冯子贤 Dai Shulong;Zhu Fenglai;Fan Dongchun;Yang Mao;Xin Liang;Lu Jian;Feng Zixian(Qujing Bureau,CSG EHV Power Transmission Company,Qujing 655000,China)

机构地区：[1]中国南方电网超高压输电公司曲靖局,云南曲靖655000

出　　处：《云南电力技术》2023年第4期21-24,46,共5页Yunnan Electric Power

摘　　要：为降低交流系统单相重合闸期间对高压直流系统的影响,通过对站内实际发生单相故障期间的录波进行分析,发现在故障相两侧开关切除期间,瞬时故障与永久故障的线路正常相在故障相上的感应电压大小以及波形存在明显差异,据此提出交流线路单相重合闸逻辑优化措施,并在PSCAD/EMTDC仿真软件中的高压直流输电系统模型中验证了所提优化措施的可靠性,该优化措施可为在运高压直流输电系统单相重合闸逻辑优化提供参考。In order to reduce the impact on the HVDC system during the single-phase reclosing of the AC system,through the analysis of the recorded wave during the actual single-phase fault in the station.It is found that during the circuit breaker open on both sides of the fault phase,there are obvious differences in the magnitude and waveform of the induced voltage on the fault phase between the normal phase of the line with instantaneous fault and the normal phase of the line with permanent fault.Therefore,the logic optimization measures for single-phase reclosing of the AC line are proposed,The reliability of the proposed optimization measures is verified in the HVDC system model in PSCAD/EMTDC simulation software.The optimization measures can provide a reference for the optimization of single-phase reclosing logic in HVDC transmission system.

关 键 词：单相重合闸 感应电压 逻辑优化 PSCAD/EMTDC仿真 高压直流输电系统 

分 类 号：TM74[电气工程—电力系统及自动化]