一起高压直流输电工程VBE系统故障跳闸事件分析  

Analysis of a VBE System Fault Trip Event in HVDC Transmission Project

作　　者：张朝辉[1] 苏杰和[1] 杨家豪 王晨涛 ZHANG Zhao-hui;SU Jie-he;YANG Jia-hao;WANG Chen-tao(Guangzhou Bureau,CSG EHV Power Transmission Company,Guangzhou 510663,China;Xiamen University Tan Kah Kee College,Zhangzhou 363105,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司广州局,广东广州510663 [2]厦门大学嘉庚学院,福建漳州363105

出　　处：《电工电气》2020年第4期52-55,共4页Electrotechnics Electric

摘　　要：针对一起高压直流输电工程VBE系统故障跳闸的事故,介绍了事故概况,经事故分析与现场检查,发现该跳闸事故的原因是直流控制保护系统低电压判据与VBE系统配合存在问题,给出了优化置位"低交流电压"信号逻辑的整改措施,并结合EOC信号电气参数特性完成了逻辑调试,确保了阀控系统的可靠性及冗余性。Aiming at an accident of valve base electronics (VBE) system fault tripping in HVDC transmission project,this paper introduced the accident overview.Via accidents analysis and on-site inspection,it was found that the cooperating problem between the low voltage criterion of DC control and protection system and the VBE system caused the tripping accident.This paper gave the rectification measures of optimizing setting "low AC voltage" signal logic and combined with EOC signal electric parameters characteristic to finish the logical debugging to ensure the reliability and redundancy of valve control system.

关 键 词：高压直流输电 阀基电子设备 跳闸事件 

分 类 号：TM721.1[电气工程—电力系统及自动化]