昆柳龙特高压混合多端直流阀控触发异常分析及优化措施  

Analysis and Optimization Measures of Anomaly Valve-Controlled Trigger in Kunliulong Hybrid Multi-Terminal UHVDC Project

作　　者：谢惠藩[1] 彭光强 姚传涛 宋阳 徐光虎[1] 黄伟煌 林雪华 陈秋鹏 王杨正 XIE Huifan;PENG Guangqiang;YAO Chuantao;SONG Yang;XU Guanghu;HUANG Weihuang;LIN Xuehua;CHEN Qiupeng;WANG Yangzheng(Power Dispatching and Control Center,CSG,Guangzhou 510663,China;Electric Power Research Institute of CSG EHV Power Transmission Company,Guangzhou 510623,China;Tianshengqiao Bureau of EHV Power Transmission Company,CSG,Xingyi,Guizhou 550081,China;Liuzhou Bureau of EHV Power Transmission Company,CSG,Liuzhou,Guangxi 545006,China;Electric Power Research Institute,CSG,Guangzhou 510663,China;Guiyang Bureau of EHV Power Transmission Company,CSG,Guiyang 550000;NARI Electric Company,Nanjing 211102,China)

机构地区：[1]中国南方电网电力调度控制中心,广州510663 [2]南方电网超高压输电公司电力科研院,广州510623 [3]南方电网超高压输电公司天生桥局,贵州兴义550081 [4]南方电网超高压输电公司柳州局,广西柳州545006 [5]南方电网科学研究院,广州510663 [6]南方电网超高压输电公司贵阳局,贵阳550000 [7]南瑞继保公司,南京211102

出　　处：《南方电网技术》2024年第3期104-110,128,共8页Southern Power System Technology

基　　金：国家自然科学基金资助项目(51777079)。

摘　　要：昆柳龙特高压混合多端直流工程是世界首个特高压混合多端直流工程,较传统两端直流运行方式更加灵活,但也增加了控制保护策略的复杂性。自投运以来多次发生运行异常,其“首台套”控制保护系统和设备的可靠性有待进一步提升。详细分析了昆柳龙直流“6·9”阀控触发异常事件,全面梳理控制保护功能配置和直流响应情况,提出了增加阀组触发异常检测保护功能并实施应用,该策略能准确迅速检测出阀控脉冲丢失或脉冲延时故障,完善了直流控制保护系统对阀组触发异常工况的风险识别和抵御能力,有效提升昆柳龙特高压多端混合直流工程运行的可靠性和稳定性,研究成果可为后续特高压混合多端直流工程控制保护系统的功能设计提供借鉴和指导。Kunliulong hybrid multi-terminal UHVDC project(KBL)is the first one of this kind project in the world.Its operation is more flexible than traditional two-terminal HVDC projects.Meanwhile it also increases the complexity of control and protection strategy.Abnormal action has occurred several times since KBL was put into operation.So the reliability of this"first set"control and protection system needs to be analyzed and improved.This paper first illustrates the"6·9"valve-controlled triggering abnormal events of KBL by comprehensively sorting out the control and protection configuration and DC response.The valve group triggering abnormal detection and protection function is proposed and put into application.This strategy can detect the valve control pulse loss or pulse delay fault accurately and fast and improve the ability of risk identification and resistance for DC control and protection system to abnormal valve group triggering in abnormal working conditions.It can also effectively improve the reliability and stability of KBL operation,and the research results can provide reference and guidance for the functional design of control and protection system of subsequent hybrid multi-terminal UHVDC project.

关 键 词：昆柳龙特高压直流 混合多端直流 阀控系统 触发异常 

分 类 号：TM721[电气工程—电力系统及自动化]