区域交流电网故障引起直流系统换相失败的分析  

Analysis of Commutation Failure of HVDC System Caused by Regional AC System Fault

作　　者：陈铁敏[1] 浦琴琴[1] 徐明[1] 

机构地区：[1]国网上海市电力公司检修公司变电检修中心,上海200063

出　　处：《电力与能源》2014年第2期179-182,共4页Power & Energy

摘　　要：以区域电网交流故障引发的一起直流系统逆变站极Ⅰ、极Ⅱ换相失败事故为例,从交流系统和直流系统的扰动分析入手,利用实时曲线图进行溯源,通过仿真计算验证和分析事故的主要原因,并结合事故特征及暴露问题,提出相应的改进建议,用以提升分析和处理换相失败等故障的能力,提高跨区电网直流输电系统的安全稳定运行水平。This paper proposes commutation failures of pole Ⅰ and pole Ⅱ of HVDC system caused by regional AC system fault, It Starts from the perturbation of AC system and DC system and uses real-time graph to veri- fy and analyze the main reason of the accidents through simulation, it gives reasonable recommendations com- bined with the characteristics and problems to improve ability of analysis and processing, and enhances safety and stability of HVDC system.

关 键 词：区域电网 直流系统 换相失败 安全稳定 

分 类 号：TM732[电气工程—电力系统及自动化]