主动干预式消弧装置故障选线方法  

Fault Line Selection Method of Active Interference Arc Suppression Device

作　　者：郝越峰 HAO Yuefeng(Guiyang Power Supply Bureau of Guizhou Power Grid Co.,Ltd.,Guiyang 550001,China)

机构地区：[1]贵州电网有限责任公司贵阳供电局,贵阳550001

出　　处：《高压电器》2021年第2期184-188,共5页High Voltage Apparatus

摘　　要：主动干预式消弧装置具有很强的消弧能力,是一种有效的消弧手段;中性点不接地系统运行稳定性好,但是主动干预式消弧装置在中性点不接地系统中的故障选线准确率还有待提升。针对主动干预式消弧装置在中性点不接地系统中的选线难题,分析主动干预式消弧技术原理,考虑零序电流幅值、相位特性,提出了基于零序电流矢量差的故障选线方法。在PSCAD/EMTDC平台上进行故障仿真分析,结果证明了所提出选线方法的准确性。Active Interference Arc Suppression Device(AIASD)has strong arc suppression ability and is an effec-tive arc suppression method.Isolated neutral system has good operation stability,however,the fault line selection ac-curacy of AIASD in isolated neutral system still needs to be improved.Aiming at the fault line selection problem ofAIASD in isolated neutral system,the principle of AIASD is analyzed and the characteristics of zero-sequence cur-rent amplitude and phase are considered,and the fault line selection method based on vector difference of zero-se-quence current is proposed.Fault simulation analysis is conducted on PSCAD/EMTDC,and the results prove the ac-curacy of the proposed method.

关 键 词：主动干预消弧 故障选线 中性点不接地系统 零序电流 

分 类 号：TM862[电气工程—高电压与绝缘技术]