舟山多端柔性直流系统环流抑制和交流故障穿越能力分析  

Circulating Current Suppressing and AC Faults Ride-through Capability Analysis of Zhoushan MMC-MTDC System

作　　者：高强[1] 吴华华 陈楚楚 张帆[1] 吴烨[1] 

机构地区：[1]国网浙江省电力公司电力调度控制中心,浙江杭州310007 [2]国网宁波供电公司,浙江宁波315000

出　　处：《电网与清洁能源》2016年第6期62-67,共6页Power System and Clean Energy

基　　金：国网浙江省电力公司科技项目(5211HZ150187)~~

摘　　要：介绍了世界首例五端柔性直流输电工程——浙江舟山柔性直流输电工程的概况和主要设备组成,分析总结了舟山MMC-MTDC控制保护系统中的环流抑制控制策略和交流故障穿越控制策略,最后通过实验分析了舟山MMC-MTDC系统的环流抑制效果,以及在交流侧单相接地故障、两相接地故障、两相短路故障、三相短路故障4种情况下的瞬时故障穿越能力。研究结果可为舟山五端柔性直流输电系统安全稳定运行提供技术支持和理论保障。This paper introduces the general situation of Zhoushan MMC-MTDC transmission project, the world＇s first five side modular muhilevel converter muhi-terminal direct current（MMC-MTDC） transmission project, and the composi- tion of the key parts of the project. Based on the research of circulating current suppressing control strategy and AC fault ride-through strategy of VSC-MTDC control system, the rela- tive experiments are conducted to analyze the circulating current suppressing effect of MMC-MTDC system and the transient fault ride-through capability of MMC-MTDC system in case of four kinds of faults, including AC single phase-to- grounding, AC two-phase-to-grounding, AC two-phase short- circuit and AC three-phase short-circuit. The research results provide technical support and theoretical guarantee for Zhoushan MMC-MTDC system.

关 键 词：多端直流 模块化多电平换流器 环流抑制 故障穿越 

分 类 号：TM72[电气工程—电力系统及自动化]