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电压源换相HVDC站内交流母线故障特性及保护配合
引用本文:杨杰,郑健超,汤广福,贺之渊.电压源换相HVDC站内交流母线故障特性及保护配合[J].中国电机工程学报,2010(16).
作者姓名:杨杰  郑健超  汤广福  贺之渊
作者单位:清华大学深圳研究生院;中国电力科学研究院;
摘    要:基于电压源型换流器的高压直流输电(voltage sourced converter based HVDC,VSC-HVDC)是一种以电压源换流器、自关断器件为基础的高压直流输电技术,其换流阀价格昂贵,需要进行必要合理的保护来保证换流阀的安全运行。内部交流母线故障是换流站内部一种严重的故障形式,因此,有必要对该故障进行分析从而进行保护设计。分析了内部交流母线故障的故障机制,同时针对故障换流站不同控制方式、不同运行模式下,非故障站的动作配合进行了深入的研究。通过在PSCAD/EMTDC中建立相应的电磁暂态模型,对内部交流母线故障进行了详细的模拟,给出了分析验证。结合不同应用下的系统运行要求,提出了故障后相应的两站保护动作配合要求。

关 键 词:基于电压源型换流器的高压直流输电  故障特性  内部交流母线  滤波器母线  换流器出口母线  零序通路  保护配合  

Internal AC Bus Fault Characteristics of VSC-HVDC System and Protection Coordination
YANG Jie,ZHENG Jian-chao,TANG Guang-fu,HE Zhi-yuan.Internal AC Bus Fault Characteristics of VSC-HVDC System and Protection Coordination[J].Proceedings of the CSEE,2010(16).
Authors:YANG Jie  ZHENG Jian-chao  TANG Guang-fu  HE Zhi-yuan
Institution:YANG Jie1,ZHENG Jian-chao2,TANG Guang-fu2,HE Zhi-yuan2 (1.Graduate School in Shenzhen,Tsinghua University,Shenzhen 518055,Guangdong Province,China,2.China Electric Power Research Institute,Haidian District,Beijing 100192,China)
Abstract:Voltage sourced converter based HVDC (VSCHVDC) is a new power transmission technology based on voltage sourced converter and self turn-off devices.The valves of VSC-HVDC are comparatively expensive.Consequently,the necessarily reasonable protection should be taken to ensure the secure operation of the valves.Hence,the internal AC bus fault which is a severe fault type should be studied to design corresponding protection.This paper analyzed the mechanism of internal AC bus fault and demonstrates the protecti...
Keywords:voltage sourced converter based HVDC (VSC-HVDC)  fault characteristic  internal AC bus  filter bus  converter terminal bus  zero sequence path  protection coordination  
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