交直流合建换流站重要线路运维安全性评价技术研究  

Research on Operation and Maintenance Safety Evaluation Technology of Important Lines of AC/DC Converter Station

作　　者：袁海[1] 李靖翔[1] 赖皓 YUAN Hai;LI Jingxiang;LAI Hao(Guangzhou Bureau,CSG EHV Power Transmission Company,Guangzhou 510405,China)

机构地区：[1]中国南方电网超高压输电公司广州局,广东广州510405

出　　处：《电工技术》2022年第13期58-61,共4页Electric Engineering

摘　　要：针对交直流合建换流站线路重要度判断不清晰、缺少差异化运维策略的问题,研究交直流合建换流站重要线路运维安全性评价技术,从局部系统等值模型、换相失败敏感度、线路功率转移、过载率与过载裕度、线路功率偏离度、支路灵敏度及线路温升方面开展分析,通过模糊多目标决策方法对上述指标进行综合评价,确定最合理的线路重要度,指导线路设备差异化运维的开展。In view of the unclear judgment of line importance of AC/DC joint converter station and the lack of differentiated operation and maintenance strategy,the operation and maintenance safety evaluation technology of important lines of AC/DC joint converter station is studied.The local system equivalent model,commutation failure sensitivity,line power transfer,overload rate and overload margin,line power deviation,branch sensitivity and line temperature rise are analyzed.Through the fuzzy multi-objective decision-making method,the above indicators are comprehensively evaluated to determine the most reasonable line importance and guide the development of differentiated operation and maintenance of line equipment.

关 键 词：换流站 线路 重要度 模糊评价 

分 类 号：TM726[电气工程—电力系统及自动化]